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Take Assessment - Self-Assessment for Routing and Switching (Level 1) - Learning@Cisco Self-Assessments (Version 1.0)

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1 Which layer of the OSI model provides translation of data?

© application

@ presentation

© session

©transpor t

© data link

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2 Which two of these are part of the TCP/IP protocol stack? (Choose two.)

• application layer

• session layer

Internet layer

• presentation layer

network access layer




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3 How many layers are in the OSI reference model?

© 3

© 4

©6 <S>7




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4 Your company has routers in San Jose and Raleigh. What type of network would connect these routers?

® WAN

© U \ N

© E P A

© S A N




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5 What kind of physical interface does a router use to connect to a WAN link?

© Ethernet

© host bus adapter

© parallel interface

® serial interface




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6 Which protocol routes between different autonomous systems?

@ EGP

© I G P

© I P P

© I P X

© T C P



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7 Router R4 has two working Ethernet interfaces, and each interface has been configured with an IP address. What is the minimum number of routes that R4 should have in its routing table?

© one route split between each directly connected subnet

© two routes for each directly connected subnet

@ two routes, one for each directly connected subnet

© four routes, two for each directly connected subnet

© six routes, two for each directly connected subnet



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8 Imagine that you visit a website and download a graphic image called logo.gif. The logo is 4000 bytes. Assuming an MSS of 1480 bytes, how many segments will the server send back to your browser to send you the logo?

© 2 segments

@ 3 segments

© 4 segments

© 5 segments

© 1 0 segments




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9 Which four of these are WAN data-link layer protocols? (Choose four.)

0 H D L C

E^PPP

[V] Frame Relay

IE ATM

• packet switching

• leased line

• cell switching


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10 Frame Relay relays packets at which layer of the OSI model?

© Layer 1 @ Layer 2 © Layer 3 © Layer 4 © Layer 6



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11 Which term defines how many bits per second the sen/ice provider commits to pass over a single PVC?

© access rate

© BECN

<§>CIR

© FECN

© header rate




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12 Which of these is a layer in the OSI model but is not part of the TCP/IP protocol stack?

© physical layer

© data link layer

© network layer

© transport layer

@ presentation layer



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13 What is the high-order bit pattern for a Class A network?

© Olxxxxxx

© 111XXXXX

© IOxdooocx

@ Oxjoooocx




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14 How many TCP segments flow between two computers to establish a TCP connection?

© one

© t w o

@ three

© f i ve

© depends on what the TCP window size is set to



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15 Which two of these are key functions of routers? (Choose two.)

provide packet forwarding

provide path determination

• serve as end station connectivity

• provide microsegementation for WAN links


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16 How many frames can pass through a 24-port switch simultaneously, without causing a collision and with full duplex used on all ports?

© 1 © 8 ©16 ® 24

© 3 2

© 6 4


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17 According to RFC 1918, which two of these addresses are considered private addresses? (Choose two.)

[Zl 10.12.21.1 • 18.24.7.245 H1172.16.34.18 • 172.47.88.89 • 212.45.22.12




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18 Which topology uses a central device for point-to-point connections to other devices?

© bus

© t r e e

© ring

® star



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19 The IP address 172.16.12.4/26 has which subnet mask?

© 255.0.0.0

© 255.255.0.0

© 255.255.255.0

@ 255.255.255.192

© 255.255.255.224




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20 WANs function at which two layers of the OSI model? (Choose two.)

• session

• network

[V] physical

• transport

0 data link



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21 How many wires are needed for a PC to successfully send data to and receive data from another PC using an Ethernet LAN cable with RJ-45 connectors?

© one

© t w o

@ four

© eight




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22 Which two of these are Class C addresses? (Choose two.)

• 10.8.25.87

• 172.16.24.45

• 189.45.107.2

[V] 192.168.1.7

0212.45.22.2

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23 Which best describes unicast traffic?

@ data traffic that is sent to one device

© data traffic that is sent to all devices in the same VLAN

© data traffic that is redistributed from an external AS

© data traffic sent to routers that are configured to receive the same data stream




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24 Which two layers of the OSI model do the TCP/IP protocols operate at? (Choose two.)

[ginetwork

• physical

0 transport

• data link



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25 During path selection, which three of these metrics may be used by routing protocols? (Choose three.)

delay

• weight

• direction

[V] hop count

bandwidth

• MED



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26 Which of these commands can be used to load a new version of Cisco IOS software onto a router?

@ copy t f tp f lash

© copy ftp f lash

© load f lash t f tp

© copy f lash f tp

© copy t f tp star tup-conf ig



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27 All hosts on a particular LAN segment use IP addresses that begin with 150.1.1. Subnetting is being used, and treats the first three octets as the subnet. Which subnet number is used to represent the subnet?

© 192.168.10.60

© 192.168.10.47

<§> 150.1.1.0

© 192.168.10.54



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28 How many twisted pairs of wires are typically used in a leased line between two routers?

@ two pairs

© three pairs

© five pairs

© four pairs




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29 How many frames can pass through a 24-port hub simultaneously, without causing a collision?

<§> one

© t w o

© f o u r

© eight



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30 Which of these best describes 'flooding' as it refers to switches?

@ If the switch does not have an entry for the destination address, it will transmit the frame out of all ports except the port on which it received the frame.

(Q If the switch determines that the destination MAC address of the frame resides on the same network segment as the source, it does not forward the frame.

(Q If the switch determines that the destination MAC address of the frame is not from the same network as the source, it transmits the frame to the appropriate segment.

© When a denial of service attack occurs, it causes a switch's CAM table to become fully populated.




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31 Which two of these are routing protocols? (Choose two.)

RIP

• IPX

• IP

S O S P F

• broadcast




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32 Which approach eliminates loops when multiple switches are implemented in a network?

© microsegmentation

@ Spanning Tree Protocol

© installing a router between switches

© only use one switch whenever a loop is possible



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33 What is the high-order bit pattern for a Class B network?

© Olxxxxxx

© Oxdoooocx

@ IOxdooocx

© 110XXXXX



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