cdot question bank

CDOT QUESTION BANK

1. INTRODUCTION TO CDOT

Fill in the blanks :

1. CDOT system employs _________switching configuration.2. The four basic modules of CDOT –DSS MAX are _________, _________, _________,

And _____________.3. The Remote Switch Unit is parented to main exchange using _________.4. ___________ provides control message communication between two Base Modules.5. Data storage is done in _________________.6. IOM supports up to _______serial ports for VDU.7. Only _______ numbered BM’s can be configured as RSU.

2. CDOT DSS MAX ARCHITECTURE

Fill in the Blanks:

1. Duration of Time slot is __________

2. A frame has ____ Number of channels

3. The _______ of every frame carries FAW and ALM information.

4. TS16 of frame0 caries ____

5. The digital stream of ______ is called as basic or first order PCM.

6. ________ and __________ are the two types of Digital Switching

7. In space switch ____ number remains same while ______ changes.

8. In time switch ____ number changes while _____ remain same.

9. Base module interfaces ______, _______ and _______.

10. Analog to digital conversion is function of _________

11. Provision of special circuits like announcements is done in _________.

12. CNF card supports _____ party conference.

13. ANN card supports ___ user friendly announcements

14. Power supply unit in ATU provides __________ and ______________.

15. In DTU one set of _____ and _____ provide one E-1 interface.

16. _____ is required to provide ISDN BRI/PRI.

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CDOT QUESTION BANK

17. With one ISTU a maximum of _____ B channels are available

18. ____ is required to support access network

19. ___________ is the master controller in BM

20. _____ and ______ form Base processor Unit

21. CM-XL provides connectivity to ____ BM’s

22. The cards used to locally generate clock in CM-L and CM-XL are ______ and ____

respectively.

23. Network synchronization is done by _______

24. IOM consists of duplicated __________

25. IOP is connected to AP/BP via _________ links.

26. The telephony software for handling lines, trunks is controlled by ___________Processors

27. _________ Record has complete detail of call and is used to extract bill.

28. _________ Controller performs test on external lines, trunks.

29. Termination capacity of Line Module is ______ analog lines

30. Each LM has _____ Terminal Units

31. When CDOT DSS MAX is configured as TAX it can support _______ Trunks

32. Ideally traffic carrying capacity of MAX-XL is __________erlangs

33. ________ and _________ are the two types of Process

34. Ideally traffic carrying capacity of MAX-L and MAX-XL is ________ and __________

respectively.

35. Base processor has capacity of handling _________BHCA

Mention True or False

1. The digital stream of 2 Mbps is called as basic or first order PCM.

2. Provision of special circuits like announcements is done in AM.

3. In time switch TS number remains same while PCM highway changes

4. In space switch TS number remain same while PCM highway changes

5. Signaling unit module (SUM) is required to support CCS7 signaling.

6. Any number of SUM can be equipped in the exchange depending on capacity

7. ISTU has to be directly connected to Time switch unit on 8 Mbps PCM link

8. CNF card supports six party conference.

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CDOT QUESTION BANK

9. ATU/DTU can be used in concentration with ISTU

10. Any one ATU or DTU can be replaced by SUM frame

11. Hardware for VU and SU are different

12. BPU is implemented as duplicated controller

13. BM can directly communicate with AM

14. BM can provide local switching and metering in standalone mode of RSU.

15. CM-L provides connectivity to 32 BM’s

16. Clock distribution is done by Central module

17. The Clock may be locally generated or derived externally

18. Network synchronization is done by AM

19. In IOP software loading, booting can be performed from any terminal

20. Initialization of system involves loading of code and data from IOP to system

21. Clock is locally generated in each BM

22. IOP uses Windows as Operating system.

23. Dynamic process are created at the time of system initialization and remain alive through

out the life of system

24. BHCA will alone decide the capacity of Exchange

25. A BM can be concentrated with 3 LM’s to provide 2024 analog lines.

26. Each BM has 6 Terminal units

27. Analog Terminal Unit can support any combination of lines and trunks in multiple of 8

28. CDOT DSS MAX cannot be configured as TAX

29. BHCA handling capacity of BP can be enhanced by upgrading the processor card

30. For security reasons database is kept locked by database subsystem

Answer the following (2 marks each)

1 Mention the 4 basic modules of CDOT DSS MAX

2 Mention any two functions of Base Module

3 Mention any two functions of Time switch Unit (TSU)

4 Mention any two units of TSU

5 What are the functions of Central Module?

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CDOT QUESTION BANK

6 Mention the different units in CM

7 Mention the two types of process

8 Define Eternal and Dynamic process

9 Mention any four subsystems of CDOT-DSS MAX software

10 Mention any Four functions CDOS

11 What are the functions of maintenance Subsystem?

12 Mention any two objectives of database subsystem

3. ADD ON MODULES

1) List the functional parts of BM 3 marks

2) Describe the functions of 3 different types of

Terminal units in BM 3 marks

3) Name the types of control cards in BM and their functions 3 marks

4) Name the types of terminal cards in BM 0.5X6=3 marks

5) Describe the concentration methods 2 marks

6) Describe the implementation of time switch 3 marks

7) Name the Service cards in BMS 3 marks

8) Name the BPU link interfaces 3 marks

9) Name functions of BPU .5X4=2 marks

10) Name the units of CM .5X4=2 marks

11) State True or false 12 marks

a) CM provides for 16 BMs in MAX-L ( )

b) APU is housed in BM1 of MAX-XL ( )

c) PSM card is used for connecting BMs in MAX-L ( )

d) CML card is used for suppressing noise ( )

e) Clock signals require proper termination in CM ( )

f) PSS cards used for space switching ( )

g) PSM card is used to connect RBM ( )

h) NSC can be synchronized to network clock ( )

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CDOT QUESTION BANK

i) Synchronisation is not required for data communication ( )

j) AM communicates directly with BM ( )

k) BPC supports 8,00,000 BHCA ( )

l) CM is responsible for space switching ( )

12) Choose the correct answer from the options 14 marks

a) ATU is used for interfacing ____ analog terminations (32, 64, 128)

b) DTU is used for ____________interfaces ( Analog, digital)

c) TIC card is used for controlling ____ terminal groups ( 2, 3, 4)

d) TIC communicates with BPU using ____kbps link (32,64,128)

e) The concentration ratio between TU and Time switch is _______ (4:1, 2:1, none)

f) IOP communicates with AP using ______ link (cms, hdlc, ladp)

g) IOP to IOP link speed is ____kbps (64,128,256)

h) IOP to console link is _____ (x.25, async, sync)

i) IOP to BP link speed is ______ kbps (64,128, 96)

j) Printer port in IOP is____________( Serial, parallel)

k) IOP-VH uses _______ Processor (68000,68030,68040)

l) Number of ASIO ports in IOP are ______ ( 4, 8,16)

m) NON-urgent alarms are indicated by ____ color leds ( Green, Red, Yellow)

n) Billing data downloaded from BM at ______ intervals ( 30 mts, 60 mts, daily)

13) Mention any three functions of APU 3 marks

14) What are the functions of ADP 3 marks

15) State true or false and correct if false 18x2=36 marks

a) Any one of the ATUs in a BM can be replaced by VU to provide V5.x

b) One VU can support a max of 10 ANRAX

c) ANRAX must be terminated on home BM

d) BMS used for control messages

e) LADP signaling used in BMS

f) BPC card can handle 8,00,000 BHCA

g) IOP communicates with each other using ccs#7 signalling

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CDOT QUESTION BANK

h) Exchange administration is done from AM

i) Windows os is used in IOP

j) VHC card is used for connecting terminals and console

k) CDROM can be used for data backup in IOP

l) Maximum number of HDLC links are 10

m) RS232 serial links used to connect terminals and printers

n) ISTU used for BRI and PRI lines

o) ATU is used for LCC cards

p) analog trunks can be terminated in DTU

q) TSU is used for inter BM call switching

r) EMF cards can be equipped in DTU

16) Describe the functions of AM 2 marks

17) Mention the types of terminals for iop 2 marks

18) List any two functions of IOP 2 marks

19) List the alarms displayed in ADP 3 marks

20) List the types of cards in ADP 3 marks

21) Name the terminal cards in BM 3 marks

22) State true or false 15 marks

a) SCIC and TIC are same hardware ( )

b) SCIC interfaces with Service Circuits ( )

c) TGA is tone generator and answering card ( )

d) MFC is used as DTMF receiver ( )

e) 8 mbps link is used for service circuits ( )

f) HDLC link used between BPU-BMS ( )

g) 128 kbps HDLC link used from BP to IOP ( )

h) 64 kbps LADP link used between IOPs ( )

i) 16 mb memory used in MU ( )

j) PSU-II is used for BPU ( )

k) RS-232 link used in BP for console ( )

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CDOT QUESTION BANK

l) ESM card is used to connect local BMs in MAX_XL ( )

m) 16 MHZ clock is received from SCU ( )

n) 8 KHZ is sync signal ( )

o) SAM is controlled by SSC ( )

4. NETWORK SYSCHRONISATION

1) Say the below statements true or false 14

a) NSC Card has an on board processor

b) NSC card , CBX card and CCK card form a security block

c) NSC card forms the interface between DTS and CCK

d) The 2.048.Mhz clock and 8Khz sync signal are exchanged between the two copies of

NSC

e) CCK is controlled by the NSC through CBX

f) CBX card provides an interface between SSC and SSU

g) In CDOT-DSS MAX-L the local clock is synchronized with network clock using NSE

2) Write different modes of operation of NSC and explain briefly 6

5. BASIC OPERATIONS

Answer the following

1. List any three cartridges used in the software installation procedure .3

2. is it possible to create only root file system during SIP or else what is the other possibility?

3. Mention the commands with parameters for the synchronization of IOPs 2

4. What is the purpose of CSH-TAX –TIM-OUT and RING-TAX-TM-OUT system parameters?

Fill in the blanks: 1 marks each

1. RESBC stands for __________

2. Unit ID IOP 5C stands for _____RESPC and RESDC loading done in

__________directory

3. The command for setting the site identity is ______

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CDOT QUESTION BANK

4. After initialization of the exchanges the passwords of ______ and ______ accounts have to

be changed

5. the command for creating the new exchange code is ______

6. MOD-SPL-NUM command is used for creating system directory numbers of type

________ and _________

7. For displaying the system limits _______ command is used

8. XCHG-TYPE =4 stands for _______ type of CDOT exchange

9. If the value of the SPL-RING=1, then _______ feature is enabled.

10. the default size of medium size trunk group is _______in BMDC

State TRUE or FALSE 1 marks each

1. ARCD-LEN system parameter indicates the number of digits to be prefixed as area code

while sending CLI.

2. the maximum BM categories possible are 64

3. The maximum value of PSWD-TAMP-THRS is 10.

4. MIN –SUBS –DIALS value should be always greater than or equal to the number of digits

in exchange code.

5. If the value of CCB-CL-CNVRS is 1800 then all the ORD-CCB calls will get cut after 3

mins.

6. Giving shutdown 0 at root prompt means shutdown of IOP will start immediately

7. An RBM cannot be assigned both shared exchange code and unique exchange code

8. Answering circuit creation is done by the command MOD-SYS-DIRNO

9. NON-MTR-LCL governs the charging for intra exchange calls terminating on non-metered

numbers

10. the output device for various alarms and reports can be set to VDU only

6. SUBSCRIBER LINE ADMINISTRATION

Answer the following:

1. Mention the various subscriber priorities available for creating a new subscriber

2. Mention any three advantages of MSN facilities for ISDN subscribers 3

3. List the transition states possible using CALL-STAT parameter of MOD-LIN-STA command

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CDOT QUESTION BANK

4. List any four number identification supplementary services 2

Fill in the blanks 1 mark each

1. To get a free subscriber directory number _______command is used

2. AISUB-ID specifies the _________ and ________ address of the AN sub.

3. There are___ possible values of LIN-CAT.

4. The value of CAB-ID consists of _________-id, _______-id and _____-id.

5. _________ command is used for modifying originating facility and terminating facility of a

subscriber.

6. Granted facility can be withdrawn using _________ command

7. __________ command is used for granting diversion on absence

8. CFB and CFNR stands for ___________ and ___________ respectively

9. Q-length in GRNT-QING-FAC for normal sub is _______

10. Maximum number of MSNDN added through ADD-MSN-DN command is ___

11. For changing the faulty port __________ command is used.

12. For getting a list of subscribers with specific characteristics _____________ command is

used.

13. A given number can be unfreezed using ______________command.

14. The calls that can wait for BS can be modified using _________ command.

State true or False 1 mark each

1. Any sub data modification possible only when the status of the line is OOS-OPR.

2. Once the mode is selected as NU-TONE while deleting a Sub, it can be changed to any

other mode in MOD-ANN-MODE command.

3. It is not possible to unfreeze the directory numbers up to a specific date

4. It is not possible to change the TEN keeping the same directory number

5. ‘control E ‘ keys are used to reach the end of all parameters and then execute the

command

6. It is not possible to get the detail billing for local calls

7. The granting of a facility is required only when some addition data is required which

cannot be given in the command being used for registration

8. At any instant , the service may be activated/deactivated by the administrator only

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CDOT QUESTION BANK

9. By the DEL-GVN-ALM command alarm booked by operator only are deleted

10. Hunt group is used for both PSTN and ISDN sub but DDI is used only for ISDN sub

11. The directory numbers should have been created and its status should be OOS-OPR

before they become member of the hunt group.

12. A mix of analog sub and ISDN sub in a single hunt group is allowed

13. It is possible to unfreeze only 60 directory numbers at a time

14. The member TEN of a Hunt group can be defined as incoming only of both way or both

15. The characteristics of the DDI users for originating as well as terminating calls is

recognized by the PDDI number

7. CAS AND CCS #7 SIGNALLING

Answer the following :

1. Mention any three salient features of CCS7 signaling 3

2. Write any four layers of OSI model. 2

3. Write the functions of level 1 and level 2 in brief 3

4. State the reason for limited information transfer of CAS system. 2

5. Expand the following 2

1. SCCP

2. OMAP

3. ISUP

4. ASE


1. MTP stands for ___________

2. CCS system transfer signals at a rate of ____Kbps

3. CCS7 capability in CDOT is provided by ___________ module

4. Any node with a capability of handling CCS7 is termed as ___________

5. The two sub layers of TCAP are ___________ and ______________.

6. The BM containing the SUM is called the ___________ BM.

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CDOT QUESTION BANK

State true or false 1 mark each

1. Rerouting is possible in CAS

2. There are 2 levels of MTP in CCS7 protocol model

3. Level four comprises of user parts

4. TU cannot be replaced by SUM in CDOT

5. Massage handling is done by level 3

6. MTP cannot control the number of signaling message links

7. SCCP provides connection oriented and connection less services

8. SIGNALLING UNIT MODULE

Answer the following:

1. List any 4 card available in SUM of CDOT 2

2 .State the phases available for ISUP terminating and transit calls 2

3 .Differentiate between ISUP-CRG-CHP and ISUP-CRG-CHU 3

4. List commands for CCS 7 data creation in order 3


1. Maximum number of SHM cards in a SUM is _____

2. The frame type for equipping SUM is _______

3. _____ number of C.85 terminals required for internal message communication of the SUM

with the home BM.

4. ________ message is sent to preceding exchange when called party answers the call

5. TGP-STA in CRE-TGP should always _________

State true or false 1 mark each

1. SUM can be equipped in RBM

2. In BMDC , SUM is equipped

3. ACM is a part of ringing phase

4. No 7 TEN has 5 sub fields

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CDOT QUESTION BANK

5. ACCS-CD-NPFX parameter is used for access code suppressing in case of STD/ISD calls

in o/g trunks

9. ISDN

1) Expand the following abbreviations

PSTN, PSDN ,ISDN ,NT

2) Define ISDN

3) Write ISDN applications, and explain any three applications

4) Write a neat diagram that shows user-network interface reference points of an ISDN line

5) Write different cards contained in an ISTU frame

6) Write different supplementary services offered in CDOT-DSS for ISDN subscriber

7) Write Test set no’s: in CDOT-DSS for testing ISDN line

10. ACCESS NETWORK IMPLEMENTATION

1) Say true or false, if false correct it. 16

a) H/W of VU is same as that of SU the difference is only S/W

b) One BM can support Maximum 3072. v5 subscribers

c) SU and VU can not be concentrated together

d) One BM can interface maximum 14 v5.2 interfaces

e) While creating AN sub, AISUB-ID is to be given instead of TEN no

f) Status of AN SUB is changed to INS by FRC-TRM-INS.

g) Two CSU load Cards (CUL) are required in copy ONE only of VU

h) VU can not be configured in RBM

2) Write the advantages of V5.2 interface 4

11.RBM

1) Write different basic modules in CDOT-DSS. 6

2) Say true or false, if false correct it. 12

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CDOT QUESTION BANK

a) RBM can have different area code than main exchange

b) Provision is there to block local calls between Main and RBM

c) RBM does not support trunks and Junctions beyond RBM

d) Emergency services in RBMSA is not possible

e) Call shifting, during DTK going faulty of RBM, will take place within the same copy

of TSC of RBM

f) Separate clock cable is extended from CM to RBM

3) Write the functions of Remote Time Switch. 6

4) Expand GPC, GRRA, CMR, OTP, TTP, SCP, LRRA, DET, and RBMSA. 6

12.TRUNK & ROUTING ADMINISTRATION

1) Explain the following Parameters of a TGP 8

a) TGP STATUS

b) LINE SIGNALLING

c) MF SIGNALLING

d) TRNK GROUP TYPE

e) PREFIX DIGITS

f) RANK OF DIGIT

g) ANSWERING CCT INFORMATION

h) CAMA

2) Write the system assigned priorities for the following Line types 6

a) CCB

b) CCB With STD

c) CCB With credit card

d) PABX

e) OPERATOR

f) TESTING LINE

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CDOT QUESTION BANK

3) Explain briefly with example 6

a) Special rout

b) DID rout

4) Write the significance of the following parameters in creating rout 10

a) Rout flag

b) Charge rate no

c) Digit length

d) Tgp choice

e) Rout code

13. CDOT-IN

ONE MARK QUESTIONS

Fill in the blanks with correct answers

1. In IN, SSP communicates with SCP through ___________ network ( CAS, CCS#7)

2. __________contros the basic call processing and call flow as directed by SCP

( SSP / IP)

3. __________does the detailed billing and charge related functions for IN services.

( SCP/SSP)

4. ___________used to carry out the IN services data creation and management fuctions.

(SMP/IP)

5. __________interacts with the user by sending announcements, requesting for PIN, password etc

and also receives DTMF tones and converts into digits. ( IP/SMP)

TWO MARKS QUESTION

1. What are the needs of IN services in telecom network?

THREE MARKS QUESTION

1. Write the different components of IN network.

2. Write the different functions of SSP

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CDOT QUESTION BANK

14. TRAFFIC ADMINISTRATION

ONE MARK QUESTIONS

1. What is the significance of the traffic administration?

Fill up the blanks

2. _________ data is used to produce call detail records.

3. ____________command displays all active traffic reports

4. The command used to stop the traffic observation is __________

5. While displaying the traffic reports in case of trunk group reports, module number

should be specified as __________ ( AM / TRK_BM )

State TRUE of FALSE

6. After executing the command DISPL-SUB-TRFINF, for a specified subscriber, the counters

will get reset to zero. (TRUE / FALSE)

7. SUB-TRFINF counters are getting reset at 00:00 hours daily. (TRUE / FALSE)

8. After executing the command DISPL-TRK-TRFINF, for a specified trunk, the counters

will get reset to zero. (TRUE / FALSE)

9. TRK-TRFINF counters are getting reset at 00:00 hours daily. (TRUE / FALSE)

10. For getting MF signalling analysis report for MF signaled trunk, the trunk should be

in MF signalling analysis. (TRUE / FALSE)

11. While displaying the traffic observation reports, TO-DATE should be greater than or equal to

FRM-DATE. (TRUE / FALSE)

TWO MARKS QUESTION

1. What are the two types of supervisions w.r.t. traffic measurement?

2. List out four different classes of traffic measurement.

3. What are the two types of traffic counters maintained for accumulating traffic data.

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CDOT QUESTION BANK

4. What is the meaning of call event record?

5. List out any four different types of traffic reports that can be taken in CDOT exchange.

THREE MARKS QUESTIONS

1. List out the uses of traffic measurement.

2. Write commands in the chronological order to put a TGP under observation , to get the printout

and stop the observation.

3. Write different types of observations possible under SUBSCRIBER-OBSERVATION

16.BILLING ADMINISTRATION

ONE MARK QUESTIONS


1.The command is to be executed before taking the printout of meter readings is _________

2. The current meter readings of the subscriber can be retrived by the command ________

3. The two types of detailed billing records are _________&__________

4. There are _____ possible categories based on which charging is done.

5. The CRI used for charging the ________, should have initial charge as ‘0’

6. The CRI used for charging the ________, should have initial charge as ‘1’

7. The command for adding the TGP for billing observation is ____________

8. The command for removing the TGP from billing observation is ____________

9. To interrogate day types of the year following command is to be used_________

( DISPL-DAY-TYP / DISPL-TYP-DAY)

10. To interrogate the traffic zone for a day type the following command is to be issued._________

(DISPL-TYP-DAY / DISPL-DAY-TYP )

11. The command to be issued to modify the charge units for different special services is

___________

12. With the command MOD-SUB-CRG, it is possible to define charging for ______

( Local calls / Transit calls)

13. In the command MOD-SUB-CRG , if the CRG-RTN = __________, then the local

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CDOT QUESTION BANK

call will get barred between the BMs of the defined category. (INVALID / 0 )

14. The charging of the calls originated from CCb lines are governed by the system

parameter __________( PCO-MTR-LCL)

15. The calls from local local PCOs are disconnected after a predefined period as

specified by the system parameter ___________ ( CCB-CALL-DUR)

TWO MARKS QUESTION

1.What is difference between the commands MOD-TYP-DAY and MOD-DAY-TYP.

2. Each subscriber is provided with six counters. Which are they?

3. What are the two types of detailed billing records?

4. Under what circumstances, subscriber special services are recorded ?

5. Write any 4 opeartions by which a commercial billing record is generated.


1. What are the different billing records generated in CDOT-MAX

2. What are the three steps involved in the process of Billing.

3. Write the contents of the commercial billing records.

16. SECURITY MANAGEMENT

ONE MARK QUESTIONS

1. It should be ensured that the operator is added in both the IOPs at the same time

(TRUE/FALSE)

2. A given command from an operator on a given terminal can be executed only if the

command is allowed from the terminal as well as to that operator.

(TRUE/FALSE)

3. For deleting/removing the account of an operator, command DEL-OPR should be executed

on both the IOPs, separately

(TRUE/FALSE)

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CDOT QUESTION BANK

4. For finding out the name and characteristics of the terminal (Port) being used by the

operator, key-in the command _______________

(DISPL-TRM-ASSGN/ DISPL-TRM-CHAR)

5. Modification of its own Password by the Operator command to be used is ________

(SET-PWD/ MOD-OPR-PWD )

6. An operator's Password can be modified by the Administrator from his console without

knowing his/her old password, key-in command _______________

(MOD-OPR-PWD/ SET-PWD)

7. While adding an operator against parameter "OPR-NAME" the name filled will be used as

login name to identify an operator to the system.

(TRUE/FALSE)

TWO MARKS QUESTIONS:

1. Why security environment is provided in CDOT?

Security environment is provided so that only authorized operators can access the system to

invoke a set of authorized commands.

2. What are two sections of commands classified for exchange?

3. Differentiate between A Class command and M class command in CDOT MAX.

4. While adding a terminal how the terminal name is inputted?

5. Differentiate the command MOD-OPR-PWD and SET-PWD.

6. List out any three terminal management commands.

7. List out any three password management commands.

8. Explain briefly the use of command DISPL-TRANS


1. What are the functions performed by the exchange administrator.?

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CDOT QUESTION BANK

2. In command ADD-OPR, explain the following parameters.

OPR-NAME, GRP-NAME, NEW-PWD, VER-PWD

17. COMMAND FILE AND CALENDAR MANAGEMENT

1. Write the significance of the following commands

1) CRE-CMD-FILE

2) DEL-CMD-FILE

3) ADD-CMD-ENT

4) DISPL-CMD-ENT

5) EXEC-CMD-FILE

6) EDIT

7) DISPL-CAL-LIST

8) DISPL-CAL-LOG

9) DISPL-OOD-LOG

10) QUIT

11) EXIT

12) DEL-CMD-ENT

13) ADD-CAL

14) MOD- CAL

15) DEL-CAL

16) DISPL-CAL

2. State whether the following statements are TRUE or FALSE

a. Command file can execute a set of commands at one stretch

b. key-in “EXIT” to not save the entries in the specified file and abort command file

creation mode

c. key-in ‘QUIT” to save the entries in the specified file and abort the command file

creation mode

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CDOT QUESTION BANK

d. Results of command files are stored in a log file.

e. For displaying the list of all commands that are going to be issued from the calendar

between specified dates and times, key-in the command "DISPL-LIST

f. For displaying entries made in the calendar on specific date, key- in command

"DISPL-CAL-LOG"

g. For displaying all the entries in the calendar log file between the specified dates,

key-in command "DISPL-CAL"

h. For displaying entries made in the calendar on specific date, key- in command

"DISPL-CAL-LOG"

i. For deleting an entry in the system calendar, key-in the command "DEL-CAL"

j. For creating a new Text file or updating a text file, key-in command “EXIT”

18. SYSTEM BACKUP AND RESTORATION PROCEDURE

1. What are reasons for taking Back up of an exchange

2. Mention any three different backups taken to be taken In CDOT DSS MAX

3. Mention two different type of Traffic Data generated by CDOT DSS MAX

4. Say whether the following statements are TRUE or FALSE

1) Exchange Data Files can not be modified

2) Files Keeping Data about health of the System should be deleted during acute disk space

deficiency

3) Exchange Data Backup must be taken once in a three month

4) Billing cycle backup is taken every 15 days

5) COPY-OUT command is used to copy specified files on to Tape

5. Mention any three different files related to bill should be backed up

6. What are two type of backups of Billing Backup procedure?

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CDOT QUESTION BANK

7. What are the files that are backed up During Billing Cycle backup

8. What are the files that are backed up During billing data backup

9. What are types of traffic data generated by the exchange

10. Arrange the following sequence in order to be followed for shutdown procedure

I. Login into 'admn' account on the IOP which you want to make OOS

II. Bring this IOP to cold

III. An INS-ACT IOP should be made INS-SBY

IV. Bring down the SBY IOP to warm-level

V. IOP should be switched off

VI. Wait for the console login

11. Arrange the following sequence in order to be followed for restoration procedure

1) Restore Traffic and History files Backup

2) Switch on all the terminal Units

3) Exchange Data Restoration

4) Billing Restoration

5) Restore files for operators accounts from backup

6) Power up the IOP

19. INSTALLATION AND COMMISSIONING

1. What are the different types of cable used in the CDOT DSS MAX installation?

2. Mention any six signal cables are used in CDOT DSS MAX

3. Mention any three different run levels of IOP

4. What are the different soft deliverables must been seen before installation?

5. Arrange the following software loading after installation in the sequential order

I. Loading of UNIX Cartridge

II. Loading of Patch Cartridge

III. Loading of Base Cartridge

IV. Shutdown of IOP

V. Loading of Bare Minimum Data Cartridge

RTTC MYSORE 21

CDOT QUESTION BANK

VI. Do not remove write protection of the cartridge unless mentioned explicitly in

the procedure.

6. What are the purpose of IDP and DCDP in CDOT MAX XL?

7. Mention any three type of cable to be connected to IOP

8. what are the precaution to be taken for installation of MM-ADP

9. Mention two different type of cable the MDF can support

10. Mention any three different type of frames available for equipping Terminal Units

11. What are the functions of the following frames in Base module of CDOT MAX XL

I. ATU

II. DTU

III. ITU

IV. SU

12. What are the significance of the following commands

I. EQUIP-FRAME

II. EQUIP-MFC-CARD

III. EQUIP-SRV-CARD

13. What are the significance of the following commands

I. UNEQ-SRV-CARD

II. EQUIP-TRML-CARD

III. DISPL-MOD-INFO

IV. UNEQUIP-FRAME

V. UNEQ-SRV-CARD

14. Mention any three Onboard Devices Tests for C-DOT IOP

15. What are the test to be performed for SWITCHING FUNCTION CHECK

16. Mention any three different tests are to be performed for RSU functioning.

20. UTILITIES

1. State true or false 7

22 RTTC MYSORE

CDOT QUESTION BANK

1. The utilities are available in the BASE cartridge supplied along with the software.

2. ‘RGEN’ is the utility used for creating space in the disk.

3. Tapes can be copied using ‘TAPECOPY’ utility

4. The reports generated by RGEN utility are not as detailed as generated by CRP.

5. The utilities are used from CRP prompt only

6. ‘BMON’ is a traffic observation tool

7. Back up for utilities is not required.

2. Write the utility used against the usage in the space provided. 6

Sl No. usage Utility / script file

1To create command file for equipping terminals and

cards

2 To create command file for test- trm

3 For printing detail bill record

4 To change the printer port

5 To display rout related information

6 To display the trunk status

3.

1. What is script file? 2

2. What is TGPUTIL? 2

3. List at least three reports displayed by ‘ contrf ‘ utility. 3

21. MAINTENANCE PROCEDURES

One Mark Questions:

RTTC MYSORE 23

CDOT QUESTION BANK

STATE TRUE OR FALSE

1. Test set no.102 is used for open loop test.

2. Test set no.103 is used for Exchange side tests.

3. Test set no.104 is used for Exchange side tests on lines (Signaling).

4. Test set no.105 is used for Exchange side tests on lines (Codec).

5. Test set no.106 is used for open loop + Exchange side tests on lines (Signalling +

Codec.

6. Test set no.107 is used for closed loop tests on lines.

Fill in the Blanks

7. Test set no.401 is used for testing -----------




Two Mark Questions:

1. Write different service circuits ?

2. Write the test set nos for Analog lines ?

3. Write the test set nos for digital trunks ?

4. Write any two routine maintenance of CM and AM ?

5. Write the routine maintenance of power supply units ?

Three Mark Questions:

1. Write the Tests in test set no.107?

2. Write any three registers to be maintained by a maintenance personnel ?

3. Write any three files to be maintained ?

4. Write the different reports to be generated ?

5. Write any three manuals required in the exchanges ?

6. Write the three phases of trouble fixing ?

7. Write thr corresponding tones for alarms ?

8. Write any three corrective actions ?

9. Write any three likely cause for a type of alarms ?

24 RTTC MYSORE

CDOT QUESTION BANK

10. Write the steps needed for periodic testing ?

22. SOFTWARE UPGRADATION AND RETROFIT

One Mark Questions:

Say TRUE OR FALSE

1. Number of AI links have been increased to 14 per BM in case of MBM and 11 in case of

SBM.

2. Unequipping of BM is possible through CRP command UNEQ-BM.

3. Seperate area code for RSU and Access network for CLI purpose.

Two Mark Questions:

1. Expand the following w.r.t. ISDN.

ICC,ITC,BRL,PRL

2. Write the steps involved in Software Retrofit Procedure?


1. Write any three pre-retrofit checks?

23. AN RAX

One Mark Questions:

1. The C-DOT AN-RAX will provide the ---------- level of remoting.

2. ARC communicates with the duplicate ARC through ---------- link.

3. Two ACIA links are used for --------and ------------------.

4. Mother Board will have -----(number of additional strapping for AN RAX.

5. The ARC and ARI cards are connected by ---------- cable.

RTTC MYSORE 25

CDOT QUESTION BANK

6. Command for creating AI Interface is ---------.

7. Command for deleting AI Interface is ---------.

8. Command for starting the AI Interface is ------.

9. The value for Distinctive ring and Normal ring is --- & --- respectively.

10. The command to test the Digital trunk status is -----------.

Two Mark Questions:

1. Name the control cards of AN-RAX?

2. Expand BORSCHT.

3. Write the two types of Boot Level?

4. Write any two Interface related Administration Commands?


1. Write the three types of line testing with test set numbers?

2. What are the three sections of display screen?

3. Write any three maintenance commands?

Write any three General Administration Commands?

24. INSPECTION GUIDE

I. State true or false. 10

1. MDF Frame should be properly earthed.

2. Protective devices should not be used at the MDF

3. Better maintained exchanged will a better service to the subscribers.

4. Switch room can be used as storeroom.

5. Voltage drop should not be more than one volt from power plant to equipment load.

6. The value of Earth resistance should be very high .

7. The switch room temperature should be maintained within 21 to 25 centigrade.

8. Exchange data back up is taken once in Fifteen days.

9. Always the switch units should be in duplex mode.

10. Command file is used for exchange inspection.

26 RTTC MYSORE

CDOT QUESTION BANK

II Fill up the blanks. 4

1. IOP is available in _ _ _ _ __ __ _ _ _ site ( RBM, ANRAX, MBM )

2. .Switch room activities are recorded in _ _ _ _ _ _ ( Log Book, Traffic reports, Back up

register)

3. In case of Power failure _ _ _ _ _ _ facility should be available.( Emergency light, First

Aid Box, Lightning protector )

4. Number of sets of software deliverables available in all MBM sites are _ _ _ _ _ (2,3,4,)

III. What is the command used for the following purpose 5

1. To know how many people were given a particular facility.

2. To know all the subscribers with given facility.

3. To know the characteristics of a rout.

4. To know the operators previledges.

5. Display the transactions

IV. List at least THREE registers/logs to be maintained in the exchanges. 3

VII. List out at least THREE general points on switch room environment. 3

25. PATCH UPGRADATION AND LATEST TRENDS

I. What is the necessity for PATCH up gradation? 1

II. State true or false. 4

1. No module should be OOS-INI state while patch upgradation

2. MAX _VE system employs T-T-T switching configuration.

3. ASV card provides tones in MAX –VE system

4. In MAX –VE system ECL card caters for 16 subscriber termination

III. Expand the following: 5

1. VSU

2. SU

RTTC MYSORE 27

CDOT QUESTION BANK

3. VTS

4. CDU

5. ETU

26. NETWORK MANAGEMENT SYSTEM

I. State true or false. 4

1. CNMS is not a real time network monitoring.

2. Depending on the technology different CNMS are required in the network.

3. NMS helps in easy termination and fault isolation of the elements in the network.

4. Operator terminals are used for network configuration.

II. Fill up the blanks. 3

1. TMN Server runs with _ _ _ _ _ _ _ _ _ _ _ _ operating system. ( DOS, Solaris,Unix)

2. The application used to page the alrms in NMS is _ _ _ _ _ _ _ _ (Net wizard, Net pager,

Net guard)

3. The application used for traffic display is _ _ _ _ _ _ _ (Net watch, Net alert, Net alarm)

III. List at least three features of NMS. 3

------- §§§§§§§§§§§§ -----

28 RTTC MYSORE

CDOT QUESTION BANK

RTTC MYSORE 29

CDOT QUESTION BANK

ANSWERS 1. INTRODUCTION TO CDOT

1. TST 2. Base Module, Central Module, Administrative Module, & Input Output Module.3. PCM Links.4. Central Module.5. Input Output Module.6. 8 7. Even

2. CDOT DSS MAX ARCHITECTURE

Fill in the Blanks:

1. 3.9 micro seconds 2. 32 3. time slot 0 .4. MFAW 5. 2 Mbps 6. Time switching and Space switching 7. TS & PCM.8. TS & PCM .9. subscribers , trunks and special circuits.10. Base module 11. Base module. 12. six .13. 15 14. logical voltages and ringing current.15. DTS and DTC.16. ISTU .17. 256 18. VU 19. Base Processor Unit 20. BPC and BME 21. 32 22. SCK and CCK.23. CM 24. Input Output Processor

30 RTTC MYSORE

CDOT QUESTION BANK

25. HDLC 26. Peripheral 27. Call event 28. Terminal Test .29. 768 analog lines30. 6 Terminal Units31. 14500 32. 8000 33. Eternal and Dynamic 34. 4000 and 8000 35. 12,500

Mention True or False

1. TRUE2. FALSE3. FALSE4. TRUE5. TRUE6. FALSE only one7. TRUE8. TRUE9. FALSE cannot be10. TRUE11. FALSE same h/w12. TRUE13. FALSE via CM14. TRUE15. FALSE 1616. TRUE17. TRUE18. FALSE CM19. FALSE Only from Console20. TRUE21. FALSE CM22. FALSE Unix23. FALSE Eternal24. FALSE Traffic, Termination capacity25. FALSE 2 LM’s

RTTC MYSORE 31

CDOT QUESTION BANK

26. FALSE 4 TU27. TRUE28. FALSE29. TRUE30. TRUE

Answer the following (2 marks each)

11. Base Module2. Central Module3. Administrative Module4. Input Output Module

2 1. Interface Digital Trunks2. Analog to Digital Conversion3. Switch calls within BM4. Communicate with AM via CM5. Provision of special circuits6. Provide local switching and metering in standalone mode of RSU

31. Time switch within the BM2. Routing of Control message within BM and across BM3. Support services like MF/DTMF,tones etc

41. Service unit (SU)2. Base message switch (BMS)3. Time switch (TS)

5 1. Switching of inter-BM calls2. Communication between AM and BM3. Clock distribution4. Network synchronization

6

32 RTTC MYSORE

CDOT QUESTION BANK

1. Space switch2. Space switch Controller3. Central message switch

7 1. Eternal 2. Dynamic

8Eternal process are created at the time of system initialization and remain alive through out the life of systemDynamic process are created when ever reuired and dies after processing the event

9 1. CDOT real time operating Software2. Peripheral Processors Subsystem3. Call Processing Subsystem4. Maintenance Subsystem5. Administration Subsystem6. Database Subsystem7. Input output processor subsystem

101. Management of Processes2. Time management3. Interrupt Management4. Resource Management5. Memory Management6. Online and offline debugging Facility

111. Initialization2. System Integrity3. Switch Maintenance4. Terminal Maintenance5. Human interface

121. Easy access

RTTC MYSORE 33

CDOT QUESTION BANK

2. Quick access3. Transparency 4. Consistency5. Security6. Synchronization

3. ADD ON MODULES

1) ATU,DTU,ISTU,BPU,TSU,SS#7

2)

a) ATU for analog subs/trunks terminations

b) DTU for 2mbps trunks terminations

c) ISTU for ISDN subscriber terminations

d) SS#7 for CCS#7 or V5.2 terminations

e) BPU for processors

f) TSU for time switch handling

3)

a) SPC signal processor card

b) TIC terminal interface card

c) TUC terminal unit controller card

4) LCC, CCM, TTC, ANN, TWT, EMF

5) One TU + 3 LTU are daisy chained using the concentration cable to achieve 4:1

concentration to share 128 time slots from 3 LTUs and a TU

6)

a) 4 x 128 multiplexed links from 4 different TU which may be combination of DTU,

ATU, #7SU,ISTU

b) 1 x 128 multiplexed BUS from SCIC in TSU

c) 3 x 128 Channel links to support on board conference ccts (3x128)

these are multiplexed to form a 512 channel 4 mbps link towards CM in case of MAX

or processed in BM for SBM

7) TGA, SCIC, MFC

8) BPU-BMS link, BPU-IOP Link, BPU-ADP link

9) Call processing, maintenance, administration, database

34 RTTC MYSORE

CDOT QUESTION BANK

10) BTU, SSU, SSCU, APU

11)

a) true,

b) false

c) false

d) true

e) true

f) true

g) false

h) true

i) false

j) false

k) false

l) true

12)

a) 128

b) digital

c) 4

d) 64 kbps

e) 4:1

f) hdlc

g) 256 kbps

h) async

i) 128 kbps

j) Serial

k) 68040

l) 8

m) green

n) 60

RTTC MYSORE 35

CDOT QUESTION BANK

13)

a) communication to duplicate iop @ 128 kbps adp 64 kbps

b) interaction with CMSs 1&2 128 kbps

c) communication path from SSC/BM to IOPs

d) Recieves billing data from BMs on hourly basis for storing in IOP

e) Consolidates traffic data and stores in IOP

f) Command interpretation for Admin and Mtce functions

14)

a) displays the system status

b) displays non-urgent urgent immediate alarms in green, yellow, red colors

c) Displays BM1-32 alarams

d) Dispalys CM alarams

e) Displays AM alarams

f) System clock failure alarams

g) Status of IOPs

h) Message link failure alarms

i) OMC link failure

j) Number of Faulty lines

k) Faulty trunk groups

l) Power alarams

m) Overload alarms

n) Software recovery alarms

15)

a) true

b) false. One VU tub supports 14 ANRAX

c) true

d) true

e) false hdlc signaling

f) false, HPC card required

36 RTTC MYSORE

CDOT QUESTION BANK

g) false, HDLC signaling

h) false, IOP

i) false, UNIX

j) true

k) false, tape backup

l) false, 7

m) true

n) true

o) true

p) false, Only digital lines (E1/PCM streams)

q) false, SCU

r) false, DTS,DTK cards

16)

a) communicates with BP via CMS

b) routing, translation, resource allocation

17) console, printers, ood, crp terminals

18)

a) downloading and initialization of DSS MAX

b) Man-Machine interface

c) Billing and traffic data collection

d) Printing of mtce and traffic data

e) exchange management functions

19)

a) Critical, urgent , non-urgent alarms from BMs, CM, AM

b) IOP alarams

c) Link alarams

d) lines and trunk group alarms

e) message link failure alarms

20) Controller card, display card power supply

21) lcc, ccm, twt, emf, ttc, ann

RTTC MYSORE 37

CDOT QUESTION BANK

22)

a) true

b) true

c) true

d) true

e) false

f) true

g) true

h) false

i) true

j) true

k) true

l) false

m) true

n) true

o) true

4. NETWORK SYSCHRONISATION

1) Say the below statements true or false

a) TRUE

b) TRUE

c) TRUE-

d) TRUE

e) TRUE-

f) TRUE

g) TRUE

2) Different modes of operation of NSC

A) Locked Mode: when one or more reference clocks are available, NSC enters into locked

mode by selecting one of the available networks clocks according to fixed priority and

synchronises to it

38 RTTC MYSORE

CDOT QUESTION BANK

B) Holdover Mode: when NSC loses the network clock to which it was locked and when

no other network clocks are available , it enters to holdover mode in which it

synchronizes to the latest reference value.

C) Free Run Mode: when none of the network reference clocks are available and no

locking to external reference clock has taken place before. In this mode system works

on its local clock.

5. BASIC OPERATIONS

1.

(i) UNIX Cartridge

(ii) Exchange Software Base Link Cartridge (BAC)

(iii) Exchange Software Combined Patch Link Cartridge (CPC)

(iv) Exchange Bare Minimum Data Cartridge (BMDC)

2.

Possible by loading only UNIX cartridge and the other possibility is to create remaining

directories like user, data and code by loading the balance cartridges

3.

The following two commands from in-service active IOP

1. PUT-SWU-OOS: MOD-NO = IOM, UNIT-ID = IOP-X; (where X = 0 or 1, id of mate IOP

& IOP-X should be at warm start level)

2. PUT-SWU-INS: MOD-NO = IOM, UNIT-ID = IOP-X; (X = 0 or 1 of mate IOP)

4.

These parameters are effective for those calls for which the exchange is working as leading TAX

1. CSH-TAX –TIM-OUT parameter governs the CSH timeout for the calls default values is 30

sec. in BMDC.

2. RING-TAX-TM-OUT parameter decides the duration of the ring to be fed to the called

party. Default value is. 60 Sec.

RTTC MYSORE 39

CDOT QUESTION BANK

ANS for Fill in the blanks:

1. Restoration of BASE cartridge

2. IOP 0 & /code/audit

3. set-site-id

4. suadmn & admn

5. MOD-XCOD

6. OPERATOR & ANNOUCEMENT

7. DISPL-SYS-LIM

8. TAX or ILT

9. distinctive Ringing

10. 20

TRUE OR FALSE ANS

1. TRUE

2. FALSE

3. FALSE

4. TRUE

5. TRUE

6. TRUE

7. FALSE

8. FALSE

9. TRUE

10. FALSE

6. SUBSCRIBER LINE ADMINISTRATION

1.

1. CCB (ordinary) = 9

2. CCB-STD = 10

3. CCB-CRD = 11

40 RTTC MYSORE

CDOT QUESTION BANK

4. PBX = 12

5. OPR (operator) = 13

6. TST (Test Line) = 14

2.

1. Each subscriber has its own directory number

2. Each subscriber has its own service profile e.g. different access level for O/G calls, a set of

facilities etc.

3. Can have subscriber specific bearer service.

4. Individual detail bill records for long distance calls as well as separate meter readings for

each subscriber

3.

1. NRM-LIN to BNP-ANNC

2. BNP-ANNC to NRM-LIN

3. BNP-ANNC to BNP-DISC

4. BNP-DISC to NRM-LIN

4.

CLIP, CLIR, CLIRO, MCID, MSN, DDI, COLP, COLPR

Fill in the blanks ANS:

1. 'DISPL-DIRNO'

2. access interface number & Layer 3 address

3. 8

4. Primary-id , secondary-id & tertiary-id

5. MOD-SUB-FAC

6. WTD-SUB-FAC

7. GRNT-ABS-SRV

RTTC MYSORE 41

CDOT QUESTION BANK

8. Call forwarding on Busy and Call forwarding on no reply

9. 10

10. 6

11. MOD-SUB-TEN

12. DISPL-SUB-LIST

13. UNFRZ-GVN-DIRNO

14. MOD-CW

TRUE OR FALSE ANS

1. TRUE

2. FALSE

3. FALSE

4. FALSE

5. TRUE

6. FALSE

7. TRUE

8. FALSE

9. FALSE

10. TRUE

11. TRUE

12. FALSE

13. TRUE

14. TRUE

15. TRUE

7. CAS AND CCS #7 SIGNALLING

1.

1. Fast, reliable and economical

2. Bit-oriented protocol

3. Labelled messages

42 RTTC MYSORE

CDOT QUESTION BANK

4. Associated and quasi-associated mode of working

5. Error correction is supported at link level (level 2) by transmission and sequence

control.

6. Message routing is supported by signaling message handler at level 3

7. Redundancy and load sharing is possible on signaling links. Change back on link

restoration is possible

8. Redundancy and load sharing is possible on signaling routes, along with diversion on

route failure.

2.

1. Physical

2. Data link

3. Networks

4. Transport

5. Sessions

6. Presentation

7. Application

3.

1. Level 1 of the defines the physical, electrical and functional characteristics of the signaling

link

2. Level 2 defines the functions that are relevant to an individual signaling link, including

error control and link monitoring.

4.

1. The restricted number of conditions that can be applied

2. The limited number of opportunities to transfer signals

5.

5. SCCP- Signaling Connection Control Part

6. OMAP- Operations & Maintenance Application Part

7. ISUP - ISDN User Part

8. ASE-Application service element

RTTC MYSORE 43

CDOT QUESTION BANK

ANS Fill in the blanks

7. Message transfer part

8. 64 Kbps

9. Signaling unit module

10. Signaling point

11. Transaction Sublayer (TSL) and Component Sublayer (CSL).

12. "home" BM.

TRUE OR FALSE

1. FALSE

2. FALSE

3. TRUE

4. FALSE

5. TRUE

6. FALSE

7. TRUE

8. SIGNALLING UNIT MODULE

1

1. SHM

2. BPC /HPC

3. BME

4. TUC

5. TUI

6. CUL

7. PSU II

2 .

1. Setup Phase

44 RTTC MYSORE

CDOT QUESTION BANK

2. Ringing Phase

3. Conversation Phase

4. Release Phase

3 .

If SIG-INF is set to ISUP-CRG-CHB, Charging will be done according to charge Band message

coming from remote end, when the exchange is acting as a local exchange and expecting charging

information from TAX.

ISUP-CRG-CHU: This method of charging is just like charging in case of MF trunks using

charging pulses.

4.

1. CRE-SPC (Create Signaling Point Code)

2. CRE-CGS (Create Circuit Group Set)

3. CRE-TGP (Create Trunk Group)

4. CRE-LSB (Create Link Set Bundle)

5. CRE-LS (Create Link Set)

6. CRE-SRS (Create Signaling Route Set)

Fill in the blanks

6. 8

7. Signaling unit

8. Two

9. ANM

10. Both way

State true or false ANS

6. FALSE

7. FALSE

8. TRUE

9. FALSE

10. TRUE

RTTC MYSORE 45

CDOT QUESTION BANK

9. ISDN

1)Public Switched Telephone Network, Packet Switched Data Network, Integrated services digital

Network, Network Termination.

2) ISDN is

a) A complete terminal- to-terminal digital network

b) A network that provides both telephone and non telephone services in the same network

c) A network based on a digital telephone network

d) A network that utilizes signaling system No:7 for signaling

3). ISDN applications are

a) Intranet Applications

b) Telecommuting or Work at home

c) Video Conferencing

d) Branch office communications

e) Standby Inter-Networking

f) Enhanced voice Services

g) Point of sale Services

h) Telemedia/Desktop publishing

i) Telemetry/Security

4). REF DIAG IN ISDN LITERATURE

5). Different cards contained in an ISTU frame

PSU- 11, BRL CARD, PRL CARD, ITC CARD, ICC CARD, &CUL CARD

6). Different supplementary services offered in CDOT-DSS for ISDN subscriber

COOLP, COLR, AOC, TP, MSN, CALL-HOLD,

7). Test set no’s: in CDOT-DSS for testing ISDN line 608, 607, 609, &610

10. ACCESS NETWORK IMPLEMETATION

1) Say true or false, if false correct it.

i) TRUE

j) TRUE

k) TRUE

l) TRUE

46 RTTC MYSORE

CDOT QUESTION BANK

m) TRUE

n) FALSE, BY PUT-TRM-INS

o) TRUE

p) FALSE

2). Advantages of V5.2 interface

Works with any type of parent switch, cost optimized, effective Network Planning can be

done, simplified O&M , will be a part of main exchange hence all facilities of main exchange are

extended.

11. RBM

1) Different basic modules in CDOT-DSS.

Remote base module, Collocated base module, Input output module, Administrative module,

Central module, Signaling unit module .

2)

a) TRUE

b) TRUE

c) FALSE

d) FALSE

e) TRUE

f) FALSE

3) Functions of Remote Time Switch.

a) Time slot interchange

b) Map 1024 time slots to 512 channels

c) Digital trunk interface

d) Clock extraction

e) Fault handling in digital trunk lines

4)

GLOBAL PATH COORDINATOR,

GLOBAL ROUTING AND RESOURCE ALLOCATOR,

CALL MANAGER,

RTTC MYSORE 47

CDOT QUESTION BANK

ORIGINATING TERMINATING PROCESS,

TRMINATING TERMINAL PROCESS,

STATUS CONTROL PROCESS,

LOCAL ROUTING RESOURCE ALLOCATER,

DIRECTORY NUMBER TO EQUIPMENT TABLE,

REMOTE BASE MODULE STAND ALONE.

.

12. TRUNK & ROUTING ADMINISTRATION

2)

A) TGP STATUS

It refers to the TGP In coming , out going ,or Both ways

B) LINE SIGNALLING

It refers to the TGP signaling, Loop disconnects, E & M, Digital R2, Digital CCS

C) MF SIGNALLING

This parameter is valid if REG-SIG is given as MF .The possible values are Invalid,

Compelled, and Semicomplled. Compelled is used for fomal exchange but semi-compelled

is used for satellite channels

D) TRNK GROUP TYPE

Type of trunk group depending on the type of exchange at other end.

Possible values are: ORDINARY, TTAX, &GATEWAY

E) PREFIX DIGITS

The digits to be prefixed to the sequence of digits received over an incoming TGP before

analyzing the total digits. It maybe nil ,single digit or may be up to four digit.

F) RANK OF DIGIT

Position in the received digit sequence from which digits are to be out pulsed on an

outgoing TGP

G) ANSWERING CCT STATUS

The status of the “answering circuits” at the distance exchange for the testing of outgoing

trunks

H) CAMA

48 RTTC MYSORE

CDOT QUESTION BANK

Is centralized automatic message accounting, enabling which can generate CDR on

incoming TGP

2). Write the system assigned priorities for the following Line types

g) CCB-------------------------9

h) CCB With STD------------10

i) CCB With credit card-----11

j) PABX-----------------------12

k) OPERATOR---------------13

l) TESTING LINE----------14

3)

c) Special rout

Are Routes terminating in the exchange itself. May be like terminating on Time annc

equipment, ILT, and alternate dir no etc.

d) DID rout

In network some times it is required to reserve a particular level in the exchange code to

provide connectivity to PABX sub. This can be achived by creating DID rout i.e. rout

code starting with exchange code. If x code is 548 and digit length is 7, then say lvel

54821 is reserved to subscriber, then DID rout can be created with code=54821.DID

rout should not be opened for more than 100 dir no range

4)

f) Rout flag

The rout flag denotes a relation between each routing category and the restrictions on

calls on outgoing route as regards to: whether calls may be barred due to calendar

consideration, whether normal calls maybe allowed i.e.,calls in which digit are such that

the digit next to the rout code is not “1”, whether calls having “1” as digit next to rout

code are allowed to pass. Or not.

g) Charge rate no

For each rout category there is an associated number which is used as an index to the

charge rate table containing charging information

RTTC MYSORE 49

CDOT QUESTION BANK

h) Digit length

The minimum no of digits including the rout code , which must be available in the

exchange for calls to be routed over this particular rout. For cases of closed numbering

scheme this also indicates the minimum no of digits which will be accepted by this

exchange, and any extra digits will be neglected.

i) Tgp choice

This is the combination of two entities: subscriber/IC trunk group priority, and the set of

trunk group numbers. Tgp no should have been already created., and should be O/G

only.

13. CDOT-IN

ONE MARK QUESTIONS

Fill in the blanks with correct answers 1. CAS2. SSP 3. SCP4. SMP5. IP

TWO MARKS QUESTION

1. 1. Demand from the customer for innovative services.1. Current network is multi vendor. Hence implementations of newer services are

difficult.2. Provisioning of the services is shifted from the switches to specialized

computers.


1. SSP, SCP, SMP, IP, CCS #7 Network.2. 1. Call processing 6. Response processing

2. Trigger processing 7. User Interaction3. Call gapping 8. Fault handling4. Feature interaction 9. Resource Monitoring5. Trigger activation & deactivation.

50 RTTC MYSORE

CDOT QUESTION BANK

14. TRAFFIC ADMINISTRATION

ONE MARK QUESTIONS

1. Traffic administration is one of the most important tasks performed by the administration software because it provides a meaningful index to the exchange performance.

Fill up the blanks

2. CER (Call Event Record)3. DISPL-TRF-RPT4. STOP-TRF-RPT5. AM

State TRUE of FALSE

6. TRUE7. TRUE8. TRUE9. TRUE10 TRUE 11. TRUE

TWO MARKS QUESTION

1. Permanent supervisionTemporary supervision

2. 1. Exch. traffic statistics2. Component Measurement3. Network Measurement4. Customer measurement

3. 1. Raw counters2. Processed data counters.

4. CER is the detailed records of all the events that occur during a call which include port identity, class of originating line or incoming circuit, dialled number, call routing time, disposition of call and time of occurrence of events, etc.

5.

1) Line Reports (LNE-REP)

2) Processor Reports (PRO-REP)

3) Hunt Group Report (HNT-REP)

4) Daily Report (DLY-REP)

5) Trunk Group Reports (TRK-REP)

6) Route/ Destination code Report (RUT-REP)

RTTC MYSORE 51

CDOT QUESTION BANK

7) Service Circuit Reports (SRV-CKT)

8) DTK Reports (DTK)

9) Link Report (LNK-REP) for CCS7 signalling links

10) Route Set for ISDN services report for CCS7 route sets (RTSET-REP)

11) Bearer Service Report (BER-SRVC) for ISDN services

12) Special facilities report (SPL-FAC)

13) Switching Network Report (SWT-NET)


1. 1.Expansion scheduling 2. Telephony resource dimensioning 3. Network planning 4. Fault location 5. Port performance measurement 6. Better resource scheduling.

2. Commands: 1. START-TRF-RPT2. MOD-TGP-OBS3. MOD-RPT-PERDTY4. MOD-OUT-OPT5. STOP-TRF-RPT

3. Originating callTerminating callMalicious call

15. BILLING ADMINISTRATION


1. FMT-BLG-CNTR2. DISPL-SUB-MTR3. NCBR & SSBR4. 325. Transit call6. Out going call7. ADD-TGP-BLG8. REM-TGP-BLG9. DISPL-DAY-TYP10. DISPL-TYP-DAY 11 MOD-SSRV-CRG12. Local calls 13. INVALID14. PCO-MTR-LCL

52 RTTC MYSORE

CDOT QUESTION BANK

15. CCB-CALL-DUR

TWO MARKS QUESTION

2. 1. Local charge 4. STD call2. Reg/STD charge 5. ISD call3.ISD charge 6. Bulk charge

3. NCBR and SSBR4. 1. Activation of the service

2. Dectivation of the service3. Verification4. Invocation (Usage)

5. Creation of a line

Deletion of a line

Modification of Terminal Equipment Number (i.e. Dir. No. is same)

Modification of subscriber facilities

Creation of hunt group

Deletion of hunt group

Addition/Deletion of members to/from hunt group, etc.

Modification of Line Status

Modification of subscriber characteristics


3. Bulk billing information on all subscribers/trunks.

Detailed billing information on all sub for REG., STD and ISD calls only.

Detailed billing for subscribers under observation for local calls and for trunks put under billing observation.

Commercial billing records.

Charging Calendar management.

4.1. Recognition of the events and recording of the date.2. Processing of data for billing records3. Storage of the processed data.

3. Date and time of operation

Operation type

Directory number and its corresponding Terminal Equipment Number

Originating and terminating facilities in case of modification of subscriber facilities

Charge meter readings of a subscriber at the time of operation done for that subscriber

New Terminal Equipment Number in case of modification of subscriber TEN

Number of lines in the hunt group and Principal Directory Number in case of hunt group operations

RTTC MYSORE 53

CDOT QUESTION BANK

16. SECURITY MANAGEMENT

ONE MARK QUESTIONS

1. TRUE

2. TRUE

3. TRUE

4. DISPL-TRM-ASSGN

5. SET-PWD

6. MOD-OPR-PWD

7. TRUE

TWO MARKS QUESTIONS:

1. Security environment is provided so that only authorized operators can access the system to invoke a set of authorized commands.

2. Commands for Exchange Administrators

Commands for Exchange Operators

3. A –Class commands are administrative set of commands

M-Class commands are Maintenance set of commands.

4. /dev/icc_x where x – varies from 0 to 7 for VH IOP

5. By using the command MOD-OPR-PWD the system administrator can change the password of any operator without knowing the current password. This command is an A-Class command.

By using the SET-PWD command the operator himself can modify his current password to a new one by inputting the current password. This command is an M-class command.

6. ADD-TRM, DISPL-TRM-CHAR, MOD-TRM-CHAR, DISPL-TRM-ASSIGN, DELTRM.

7. ADD-OPR, DISPL-OPR-CHAR, MOD-OPR-CHAR, MOD-OPR-PWD, SET-PWD, DEL-OPR.

8. This command is used for displaying log of recent change commands and its results given to CRP for specific period.


1. Adding a new terminal(s) to the exchange.

Adding a new operator(s) to the exchange.

Deleting/Removing an existing operator in the exchange.

54 RTTC MYSORE

CDOT QUESTION BANK

Deleting existing terminal(s) in the exchange.

Modifying operator characteristics

Modifying any operator's Password without knowing his old password.

Modifying the characteristics of a terminal

Setting/Modifying his own password

2. OPR-NAME – Name of the operator as desired. It will be used as login name to identify an operator in the system.

GRP-NAME – It is the name of the group where the operator account gets created. The group name is ‘admin’

NEW-PWD – This parameter asks the password to be assigned for loginVER-PWD – This parameter asks the password again for verification.

The account will be created only if the passwords match.

17. COMMAND FILE AND CALENDAR MANAGEMENT

1.

1) CRE-CMD-FILE: Creating a new command file containing one or more entries

2) DEL-CMD-FILE: Deleting an existing command file, key-in command

3) ADD-CMD-ENT: Adding one or more entry in a command file, key-in command

4) DISPL-CMD-ENT: Deleting one or more entries from a command

5) EXEC-CMD-FILE: executing either all entries in a command or a specified range of

Entries

6) EDIT: creating a new Text file or updating a text file

7) DISPL-CAL-LIST: Displaying entries made in the calendar on specific date

8) DISPL-CAL-LOG: displaying all the entries in the calendar log file between the specified

dates, key-in command

9) DISPL-OOD-LOG: displaying all the entries in 'OOD' log file between specified dates &

times, key-in command

10) QUIT: not to save the entries in the specified file and abort the command file creation mode

11) EXIT: storing all the desired commands in the commands file when system is in wait state

for further entry by the operator

12) DEL-CMD-ENT: Deleting one or more entries from a command file

RTTC MYSORE 55

CDOT QUESTION BANK

13) ADD-CAL: Adding an entry into the system calendar, key-in the command

14) MOD- CAL: Modifying an entry in the calendar, key-in command

15) DEL-CAL: Deleting an entry in the system calendar

16) DISPL-CAL: Displaying entries made in the calendar on specific date

2.

1) T

2) F

3) F

4) T

5) F

6) F

7) F

8) F

9) T

10) F

18. SYSTEM BACKUP AND RESTORATION PROCEDURE1.

b) Backup of files for restoration purposes in the event of exchange crash.

c) Backup of files for post-processing purposes.

d) Backup of files for cleaning disk space.

2.

I. Exchange Data Backup

II. Billing Data Backup

III. Billing Cycle backup

IV. Traffic Backup.

V. Operator Backup.

VI. History File Backup

3.

I. Periodic reports

56 RTTC MYSORE

CDOT QUESTION BANK

II. Reports for the subscribers on per call basis.

4.

1) T

2) T

3) F Monthly

4) T

5) T

5.

b) Counter Dumps

c) Formatted billing Counter files

d) Commercial Billing Record files

e) Call Detail Billing Record files

6.

ii) Billing Cycle (bc)

iii) Billing Data (bd)

7.

a) Formatted billing counter files

b) Commercial billing record files

c) Call detail billing record files

8.

a) Counter dumps

b) Commercial billing record files

c) Call detail billing record files

9.

1) Periodic reports

2) Reports for the subscribers on per call basis

10.

1, 4, 2,3,6,5

11.

6, 1, 3, 4, 5, 2

RTTC MYSORE 57

CDOT QUESTION BANK

19. INSTALLATION AND COMMISSIONING

1.

1) Ground cables,

2) DC cables,

3) Signal cables,

4) MDF cables

2.

1) Central Module to IOP

2) IOP0 to IOP1

3) Central Module to ADP

4) BP Terminal Cables (AM/CM/BM and SUM)

5) IOP to VDU terminals

6) IOP to printers

7) Test access cables

8) Concentration cables

9) BM-CM Data cable

10) BM-CM Clock cable

11) Digital Cable for RSU

12) Reference Clock Cable (RCLK) for CM-XL

13) CM Intra Rack Cables

3.

1) Power Off

2) Cold Start

3) Warm Start

4) Disable Update All

5) Disable Update Operator

4.

1) UNIX Cartridge

2) Base (Link) Cartridge (BAC)

3) Combined Patch (Link) Cartridge (CPC)

58 RTTC MYSORE

CDOT QUESTION BANK

4) Bare Minimum Data Cartridge (BMDC)

5.

1) Loading of UNIX Cartridge

2) Loading of Patch Cartridge

3) Loading of Base Cartridge

4) Shutdown of IOP

5) Loading of Bare Minimum Data Cartridge

6) Do not remove write protection of the cartridge unless mentioned explicitly in the

procedure.

6. All AC and DC potential required for the operation of the various cards in a frame of

any cabinet and operation of VDU and Printers are derived from this -48V DC source. In order

to ensure a reliable and continuous operation of MAX-XL, DC power distribution is carried out

through two distribution panels - Intermediate Distribution Panel (IDP) located in power

room and DC Distribution Panel (DCDP) in switch room

7.

1) IOP - Power Cable

2) IOP - Terminal Cable

3) IOP - Printer Cable and

4) IOP-HDLC link cables.

8.

1) The rear panel of the MM-ADP unit has enough clearance from the wall so that power

and signal cables can be easily terminated on the rear panel.

2) After unpacking of the unit it is carefully examined for any breakage in the acrylic sheet

and LEDs

9. 1) Subscriber Cable 2) Digital trunk Cable

10.

1) ATU 2) DTU 3) ITU 4) SU

RTTC MYSORE 59

CDOT QUESTION BANK

11.

1) ATU : Analog Terminal Unit, used to terminate Analog Subscribers /trunks

2) DTU : Digital Terminal Unit, used to terminate 2 Mbps Digital PCM Links

3) ITU : ISDN - Terminal Unit, used to terminate BRI and PRI Interfaces.

4) #7 Signalling Unit, used to support #7 Signalling

12.

1) Equip frames in Base Module/Line Module

2) Equip a new MFC card,

3) Equipping service card such as an Announcement Card

13.

1) Unequip the service cards to facilitate the user to reconfigure the resources.

2) For equipping Terminal Cards (Line Cards, Trunk Cards or #7 Protocol Handlers) in

a specific slot in the equipped frame

3) To see how different modules are equipped (i.e. normal BM or RBM) and in each

module how different frames are equipped (i.e. ATU, DTU or ITU)

4) This command is used to unequip a frame, already equipped in the Base Module.

5) This command is used to unequip the service cards to facilitate the user to

reconfigure the resources.

14.

1) RTC Test

2) Memory Diagnostic Tests Viz.Checker Board Test, March Test, Walking Test

3) Diagnostics for ACIA/HDLC

4) Host Test

5) VDU Test

6) HDLC Test

7) Printer Test

8) Diagnostic Commands for SCSI Devices

9) SCSI Bus Reset

60 RTTC MYSORE

CDOT QUESTION BANK

10) Test Drive Unit

11) Inquiry

12) Read Capacity

15.

1) Tests On Local Subscriber Lines

2) Junction testing : Connect the junctions of the exchange in the network and perform

the following tests :Incoming Calls to the Exchange and Outgoing Calls from the

Exchange

3) Operator Position Tests: 163 test and Complaint Position 198

16.

1) Verify that RBMSA configuration is created for Level 1 emergency services as 10X.

2) Dial 100 and verify that the call is landed on the 100 position of the main exchange

3) Create fault in the PCM links so that all the PCMs are down. RBM will be configured

in stand-alone mode.

4) Ensure that local calls are switched properly. On dialling STD route codes, the

subscriber is connected proper Tone / Announcement to confirm that in the absence of

network connectivity,

5) Restore the PCMs and repeat step (ii) again to verify that the RSU has come up and

providing network connectivity properly.

20. UTILITIES

1.

1.False

2.False

3.True

RTTC MYSORE 61

CDOT QUESTION BANK

4.True

5.False

6.False

7.True

2.

1. equip

2. tst

3. ncbrprn

4. change-port

5. routtrf2_2

6. trksts2_2

3.

1) It is a file consists of instructions written in rgen language to tailor a report for an

application. .Rgen when invokes it reads script files and may collect more inputs against the

queries.

2) It is an Utility to give the status of all the trunks of a tgp even if the total number of trunks

in a TGP exceeds 40.

3) Any three of the following.

Exchange performance report.

Originating performance system report

Incoming performance system report.

BM wise originating performance report

BM wise incoming performance report.

Incoming trunk traffic report

21. MAINTENANCE PROCEDURES

One Mark Questions:

1. TRUE

2. TRUE

3. TRUE

62 RTTC MYSORE

CDOT QUESTION BANK

4. TRUE

5. TRUE

6. TRUE

7. DTS Card

8. DTC Card

9. MFC

10. TOGC

Two Mark Questions:

1. MFC, TOGC, ANNC &TTC.

2. Test set nos 102, 103, 104, 105, 106 & 107.

3. Test set nos 401, 402, 403, 404, 405 & 406.

4. 1)Routine maintenance of AP complex.

2)Routine maintenance of CMSs.

3)Routine maintenance of IFC cards in BTU 0/1.

4)Routine maintenance of SSU 0/1 and SSCU Hardware.

5)Routine maintenance of Alarm Display Panel (ADP-SM/ADP-MM).

6)Routine maintenance of Fan Failure Detection Unit.

5. 1)Check all the LEDs on PSU cards once in a day.

2)Check whether there are any pending Power Alarms by issuing DISPL-ARM-

LIST command. If there are some, attend to them first.


1.

i. Dial Characteristic Test

ii. 2.Loop Current Test.

iii. 3.Loop Resistance Test.

2.

i. History Register

ii. Deliverable Register.

iii. System Log Book.

RTTC MYSORE 63

CDOT QUESTION BANK

iv. MDF Log Book.

v. Complaint Book.

vi. Directory Number Record Book.

vii. Outgoing Number Record Book.

viii. Incoming Junction Complaint Register.

ix. Billing Record Register.

3.

i. Subscriber Feedback File.

ii. PCO Meter Reading Record.

iii. Correspondance with other Exchange.

iv. OCR File.

v. FDT Installation.

vi. MRC File.

vii. Manuals/Equipment File.

4.

i. Weekly and monthly exchange performance report.

ii. A monthly report on H/W (cards faulty) and S/W (downtime) failure.

iii. Faulty junction report (monthly).

iv. Subscriber complaint analysis report (monthly).

5.

i. Power plant manual (FR, SWC, Inverters)

ii. Backplane wiring details of all mother boards & cards of the system.

iii. Administration and maintenance commands manual.

iv. System general description manual.

v. Printer manual.

vi. Exchange operations manual.

vii. Maintenance procedure manual.

viii. Installation manual.

ix. S/W release document corresponding to the current S/W installed in the

exchange.

64 RTTC MYSORE

CDOT QUESTION BANK

6.

i. Knowing symptoms

ii. Analysis of symptoms.

iii. Corrective action.

7.

i. Non Urgent --- Very slow interrupted tone

ii. Urgent --- Slow interrupted tone.

iii. Critical --- Fast interrupted tone.

iv. Normal --- Continuous tone.

8.

i. Replacing a circuit board

ii. Correcting a human mistake such as a switch unit made OOS-OPR and left

in that state.

iii. Manually resetting a microprocessor based controller.

iv. Tracing and repairing a faulty cable in the external plant.

v. Initialising the system partially or fully.

vi. Taking help of the support centre.

9.

i. Switch alarm --- due to switch unit faults

ii. Threshold alarm --- due to threshold crossover of terminal or service circuit

faults.

iii. Overload alarm --- due to overload condition.

iv. Battery alarm --- due to battery low condition.

v. Power alarm --- due to PSU faults.

10.

i. Deciding a schedule for Routine testing.

ii. Conveying the schedule to the system.

iii. Analysing routining reports.

RTTC MYSORE 65

CDOT QUESTION BANK

22. SOFTWARE UPGRADATION AND RETROFIT

One Mark Questions:

1. TRUE

2. TRUE

3. TRUE

Two Mark Questions:

1. ICC – ISDN Concentrator card.

ITC – ISDN Terminal Controller.

BRL – Basic Rate Line Card.

PRL – Primary Rate Line Card.

2. 1.Stop all the traffic reports if they are ON.

2. Make all the copy-0 controllers as INS-SBY.

3. Bring the IOP-0 (SBY-IOP) to warm start level by crp command INIT-IOP:2,1.

4. Stop executing data base modification related CRP commands once the retrofit

procedure has started.

5.Prepare the exchange data command files for 2_2_1_6 release using the

exchange data utility.

Three Mark Question:

1.

1. All the duplex units in the system are fine and they respond correctly to all

switch maintenance commands.This should be tested for IOPs also.

2. All simplex units (TTC, ANNC & MFCs)are fine and respond to switch maintenance

commands with either of the higher duplex units as active.

3. System alarms are working fine.

4. All input/output devices of C-DOT IOPs are fine.

5. All deliverable corresponding to old release are available at site.

6. Latest ED/BD backups are available.

7. Take list of the BNP-DISC NOs from active IOP.

66 RTTC MYSORE

CDOT QUESTION BANK

8. Ensure that the new PROMs for all controllers including IOPs, ADP and SPARES are

available as per card versions being used in the system.

9. Note down characteristics of all the operator terminals created in each IOP, as these will be

required to be added again after the retrofit.

10. Take a printout of all the system parameters.

23. AN RAX

One Mark Questions:

1. Second

2. HDLC

3. VDU & debugging terminal

4. 20

5. 60 pin flat

6. CRE-AI

7. DEL-AI

8. START-AI

9. 1 & 2

10. TST-DTK

Two Mark Questions:

1. 1) AN-RAX Controller Card(ARC)

2) AN-RAX Interface Card (ARI)

2. Battery feed, Over voltage protection, Ringing, Supervision, coding, hybrid conversion and

Testing.

3. 1. Boot using existing data.

2. Boot using default data.

4. 1)CRE-AI.

2)DEL-AI.

3)DISPL-AI-CHAR.

4)DISPL-AI-STATUS.

5)START-AI.

RTTC MYSORE 67

CDOT QUESTION BANK


1. 1)Line Side Tests – 102.

2)Closed Loop Test – 103.

3)Exchange Side Tests – 101.

2. Section A – Alarm Display Panel.

Section B – Area for execution of user commands.

Section C – Status line.

3. 1)DGN-RTC

2)DISPL-AICNT-OOS.

3)DISPL-ALRM-HIST.

4)DISPL-DTK-STATUS.

5)DISPL-SLOT

6)DISPL-TRM-STATUS. ..etc.

4. 1)CRE-SITE-ID.

2)EQUIP-SLOT.

3)LOGOUT.

4)MOD-DATE-TIME.

5)MOD-PSU.

6)PASSWD.

7)UNEQUIP-SLOT.

24. INSPECTION GUIDE

I

1. TRUE.

2. FALSE.

3. TRUE

4. FALSE

5. TRUE.

6. FALSE.

7. TRUE.

68 RTTC MYSORE

CDOT QUESTION BANK

8. FALSE

9. TRUE

10. FALSE.

II

1. MBM

2. Log Book

3. Emergency light

4. 2

III.

1. DISPL-SYS-LIM

2. DISPL-SUB- LIST

3. DISPL-ROUT CHAR

4. DIPL-OPR CHAR

5. DISPL-TRANS

IV.

1. Back up register

2. Faulty card register

3. Log book

4. Traffic reports

5. Complaint register

VII.

1. Switch room Temperature within 21C to 25C.

2. Switch room should be clean and no dust.

3. Availability of CDOT documents.

4. Proper lighting arrangement

5. Fire alarm and Fire Extinguishers availability.

6. Availability of First aid Box.

RTTC MYSORE 69

CDOT QUESTION BANK

25. PATCH UPGRADATION AND LATEST TRENDS

I. Based on feed back CDOT is bringing new patches by debugging the errors and to

introduce new facility/ services in the switch.

II.

1. TRUE

2. TRUE

3. FALSE

4. TRUE

III.

1. Value Engineered Time Switch Unit

2. Service Unit

3. Value Engineered Time Switch

4. Compact Digital Unit

5. Enhanced Terminal Unit

26. NETWORK MANAGEMENT SYSTEM

I

1. FALSE.

2. FALSE.

3. TRUE.

4. FALSE.

II.

1. Solaris

2. Net pager

3. Net watch

III.

70 RTTC MYSORE

CDOT QUESTION BANK

1. Real time network monitoring.

2. Geographical network display

3. Network configuration display.

4. Real time alarm collection.

5. Traffic analysis and display.

6. Switch technology independent.

7. Ease of customisation.

8. Centralised system administration

9. Fault tolerant client server architecture.

RTTC MYSORE 71

cdot question bank

Documents