COMPUTER OBJECTIVE QUESTIONS

Tick the correct answer :

1) Which normal form is adequate for normal relational database design ?a 2NF b. 3NF c. 4NF d. 1NF

2) The topology with the highest reliability a. bus topology b. star topology c. star topology d. mesh topology

3) In a broad sense, railway track is an example of a. simplex b. half-duplex

c. full-duplex d. all of these

4) Start and Stop bits are used in serial communication fora. error detection b. error correctionc. synchronization d. bit stuffing

5) Error detection at the data link layer is achieved by bya. bit stuffing b. cyclic redundancy codes c. Hamming codes d. equalization

6) How many unique bits are used to represent TCP/IP Internet Address ?a. 16 bits b. 32 bits c. 48 bits d. 64 bits

7) In standard TTL, the totem-pole stage refers toa. multi-emitter input stage b. phase-splitter c. the output buffer d . open collector output stage

8) The output of a logic is ‘1’ when all its inputs are at logic ‘0’ .The gate is eithera. NAND or EX-OR b. NOR or EX-NORc. OR or EX-NOR d. AND or EX-NOR

9) FFFF will be the last memory location in a memory of sizea. 1 K b. 16K c. 32K d. 64 K

10) Which of the following devices should get higher priority in assigning interrupts ?a. Hard Disk b. printer c. key board d.Floppy Disk

11) How many address lines & data lines are required for 2048 X4 Memory chip a. 13 ,2 b. 11 ,4 c.13,4 d. 12,4

12) Screen is regarded as an array of pixels where all pixels are either On or Offa) Character Map Terminalb ) Bit Map Terminalc) RS 232 C terminald) All of the above

13) Parallel printers usesa. RS-232C interfaceb. Centrionics interfacec. Handshake moded. All of the above

14) In RS-232 Standard conforming ports in PC ,’RS’ stands fora. Registered Sourceb. Recommended Standardc. Random Sequenced. Registered Source

15) The following area is used as a working area in CPUa) Program counterb) Instruction registerc) Instruction decoderd) Accumulator

16) An interrupt in which the external device supplies its address as well as the interrupt requesta) Vectored interruptb) Maskable interruptc) Non-maskable interruptd) Low-priority interrupt

17) Microprogramming is a technique a) For writing small programsb) For programming input /output areac) For programming the microprocessord) For programming the control steps of a computer

18) All digital circuits can be realized using only a) EX-OR Gatesb) Multiplexersc) Half-Addersd) OR Gates

19) Functions with the same name and different signature is calleda) Over-riding functionsb) Over-loaded functionsc) Member functionsd) constructor

20) In Windows programs, users can switch between a MS-DOS window and other windows or programs currently running by pressing which shortcut key

a. ALT + CTRL b. CTRL + TAB c. ALT +TAB d. CTRL + ALT + DEL

21) What is the command used to view the contents of a file in Unixa. See <filename> b. edit <filename>c. cat <filename> d. watch <filename>

22) FTP is the abbreviation ofa. Find Text Pattern b. File Text Print c. File to printer d. File Transfer Protocol

23) In ‘C’ language printf ( ) and scanf ( ) functions are stored in which library filesa. graphics.h b. iostream.h c. stdio.h d. iosys.h

24) What is the command used to allocate memory in ‘C’ language a. new b. realloc c. malloc d. memalloc

25) 8086 Microprocessor is how many bit processora. 8 bit b. 16 bit c. 32 bit d. 64 bit

26) DMA is the abbreviation of a. Direct Memory Add b. Divide Memory and Add c. Divide Memory Access d . Direct Memory Access

27) In the seven layer OSI Model which layer is responsible for the actual transfer of data.a. Data Link Layer b. Physical Layerc. Transport Layer d. Network Layer

28) LAN to WAN data transfer takes place through a. Bridge b. Router c. Gateway d. Switch

29) WAN to WAN data transfer takes place through a. Bridge b. Router c. Gateway d. Switch

30) SMTP is the abbreviation a. Single Mail Transfer Protocol b. Standard Mail Transmission Protocolc. Simple Mail Transfer Protocol d Standard Message Transmission protocol

31) DRAM is the abbreviation of a. Dynamic Random Access Memory b. Different Random Access Memory c. Duplicate Random Access Memory d. Double speed Random Access Memory

32) Bus, Tree, Ring, Star are types of a. Network Topology b. Transmission medium c. Transmission technique d. Access protocol

33) Multiplexer hasa. One Input One Output b. Many Input One Outputc. One Input many Output d. Many Input Many Output

34) In OSI model encryption to ensure security is performed in which layer.a. Data link layer b. Network layerc. Session layer d. Presentation layer

35) ) Memory is the ___________ storage area in the computer.a) external b) internal c) temporary d) functional

36) 1 GB is approximately 1 _____________bytesa) 105 b) billion c)109 d) trillion

37) A network connecting to many organization is called a) Intranet b) internet c) Woranet d) All of these

38) MS Powerpoint is a popular Software used for _____________a) Drawing b) Spreadsheet c) internet connection d) Presentation

39) A mouse is a device to control the movement of __________ on the displaya)cursor b)enter key c) num lock d)arrow

40) MS-PowerPoint is a part of ________a)Sql Server b)MS-officec)My Documents d) Pointer

41) Drum Printer is a :a) Line printerb)Dot –Matrix Printerc)Letter quality printerd)None of the above

42) In Multi –tasking

a) Number of processors are working on the same programb) Number of programs are processed by single processorc) One task is broken into small tasksd) All of the above

43) Pick up the Correct conversion :a) 1001 2 = 2510

b) 1010112 = 4310

c) 17208 = 97610

d)All of the above

44) The Decimal value for binary number 1011010a) 60b) 64c) 80d) 90

45) Moving the document within window is through:a) navigationb) scroll barsc) splitd) print preview

46) to delete text to the left of the cursor we use:a) backspaceb) deletec) editd) add

47) To create a directory in Unix the following command is useda) make dirb) makedirc) dird) mkdir

48) during sending an E-MAIL bcc refers to a) block carbon copyb) build carbon copyc) blind carbon copy d) buffer carbon copy

49) MS-Front page facilitates you to a) publish WebPages on the web.b) Send emails onlyc) Receive emails onlyd) Edit photo images

50) While working with text the key ‘HOME’a) will take you to the beginning of the current lineb) will take you to the beginning of the next linec) will take you to the end of the documentd) will take you to the top of the document

51) A device which is not in direct communication with the CPU of a computer ?a. on-line device b. off-line device c. channel d. intelligent terminal

52) A beam of light used to record and retrieve data on CD-RW is known as a. polarized light b. un-polarized lightc. laser d. colored light

53) A system program which translates and executes an instruction simultaneously a. compiler b. operating system c. assembler d. interpreter

54) A software program stored in ROM which can not be changed easily a. hardware b. linkerc. firmware d. editor

55) What table shows the logical state of a digital circuit for every possible combination of logical states in the input ?

a. Function Table b ASCII table b. Routing Table d. Truth Table

56) Flip-flop outputs are always a. complimentary b. same c. independent d. same as inputs

57) Which memory is non-volatile and may be written only once ?a) RAM b) EE-PROM c) EPROM d) PROM

58) Which gates are known as universal Gates ? a. AND & ORb. NAND & NORc. XOR & ANDd. XOR & XNOR

59) Which of the following electronic component is not found in ordinary ICs?a) diodes b ) resistors c) transistors d) inductors

60) The radix of the Hexa-Decimal system is a) 8 b) 2 c) 10 d) 16

61) In Boolean Algebra , A + A + A + A + A + A = a) 6A b) A c) 1 d) 0

62) The process of converting analog signals into digital signals so that they can be processed by a receiving computer

a) demodulation b) synchronizing c) digitizing d) modulation

63) The transfer of data from CPU to peripheral devices of a computer is achieved through a.Modems b. computer ports

b.routers d. buffer memory

64) The slowest transmission speed is offered by a) twisted pair wire b) coaxial cable c) fiber-optics cable d) micro-waves

65) What is the size of Internet address ?16 bits b. 48 bits c.32 bits d.64 bits

66) What is the name of the arrangement whereby several CPU units share one memory a) multi-programming b) Sharingc) concurrent programming d) Hand-shaking

67) A computer program written in high level language ?a) source program b) assembly program c) object program d) machine language program

68) Which of the following filename extension suggests that the file is a backup copy of another file ?

a. TXT b.COM c. BAS d. BAK

69) Whose trademark is the operating system UNIX ?a) Bell Laboratories b) Microsoft

c) Motorola d) Intel

70) The unrestricted use of GOTO command is harmfula) it makes the program debugging difficultb) it increases the running time of programc) it increases the memory requirementd) it results in longer machine code

71) The computer language generally unsuitable for programmers ?a) Assembly Language b) Machine language

c) COBOL d) C++

72) Temporary storage used to compensate for a difference in the speed of data flow is called a) main memory b) buffer

c) cache d) protocol

73) Using a statement at a wrong time or with an inappropriate object createsa. logical error b. Syntax errorc. compiler error d. semantics error

74) Reserving memory during program execution is better known as reserving ita. dynamically b. programmaticallyc.statically d. functionally

75) ERP Stands fora. Enterprise resource planning b. Enterprise resource pool c. Enterprise relational planning d. Enterprise resource project

76) Which are not a ERP package

a. Peoplesoft b. IFSc . tally d. bann

77. Which of the following is not a database application? a dBase b. Edit c. FoxPro d. Access 78. HSAM stands for ____ a. Hierarchic Sequential Access Method b. Hierarchic Standard Access Method c. Hierarchic Sequential and Method d. Hierarchic Standard and Method

79. When a computer is first turned on or restarted, a special type of absolute loader called ____ is executed a. Compile and Go loader b. Boot loader c. Bootstrap loader d. Relating loader

80 Poor response times are usually caused by a. Process busy b. High I/O rates c. High paging rates d. Any of the above

81 A co-processor a. Is relatively easy to support in software b. Causes all processors to function equally c. Works with any application d. Is quite common in modern computers

82. Page stealing a. As a sign of an efficient system b. Is taking page frames from other working sets c. Should be the tuning goal d. Is taking larger disk spaces for pages paged out

83. The operating system manages a. Memory b. Processes c. Disks and I/O devices d. All of the above

84. ___ runs on computer hardware and serve as platform for other softwares to run on a. Operating System b. Application Software c. System Software d. All

85. ________ interface consists of things like program counter, registers, interrupts and terminals a. Hardware b. Software c. Data d. None

86 ______ shares characteristics with both hardware and software a. Operating system b. Software c. Data d. None

87. The basic operations performed by a computers are a. Arithmetic operation b.  Logical operation c.  Storage and relative d.  All the above

88. The earliest calculating devices are a. Abacus b.  Clock c.  Difference Engine d.  None of these

89. Word length of a Personal Computer is ___ a.  4 bits b.  8 bits c.  16 bits d.  64 bits

90. Programs are executed on the basis of a priority number in a a.  Batch processing system b.  Multiprogramming c.  Time sharing d.  None of these

91. The unit KIPS is used to measure the speed of ___ a.  Processor b. Disk drive c.  Printer d. Tape drive

92. IC are classified on the basis of ___ a.  Manufacturing company b. Type of computer c.  Number of transistors d. None of these

93. MDR (Memory Data Register) holds the a.  Segment number b. Address of a memory location c.  Number of transistors d. None of these

94. Assembly language a. uses alphabetic codes in place of binary numbers used in machine language b.  is the easiest language to write programs c.  need not be translated into machine language d.  None of these

95. A source program isa.  a program written in a machine languageb.  a program to be translated into machine languagec. a machine language translation of a program written in a d. None of these

96. Testing is a____if a program does not work correctly. a. Failure b. Success c. Complete d. Partial

97. In a computer _____ is capable to store single binary bit. a. Capacitor b. Flip flop c. Register d. Inductor

98. A set of flip flops integrated together is called ____ a. Counter b. Adder c . Register d. None of the above

99. ____is a semi conductor memory. a. Dynamic b. Static c. Bubble d. Both a & b

100. Which of the following is a read only memory storage device. a. Floppy disk b. Hard disk c. CDROM d. None of these

101. What is the name of the 64-bit Microprocessor developed by AMD? a. Opteron b. RISC-9000 c. iMac d. Athlon

102. Which of the following cables can transmit data at high speeds a. Coaxial Cable b. Optic Fibre Cable c. Twistedpair Cable d. UTP Cable

103. What is the address given to a computer connected to a network called? a. System Address b. SYSID c. Process ID d .IP Address

104. Direct X is a _____ a. Computer Part b. Software that drives Graphic hardware c. A User Interface d. None of these

105. The standard c++ comment a./ b. // c./* and */ d. None of these

106. The operator << is called a.an insertion operator b. put to operator c. either a or b d. None of these

107. When a language has the capability to produce new data type, it is called a. Extensible b. Overloaded c. Encapsulated d. Reprehensible

108. What is a reference? a. an operator b. a reference is an alias for an object c. used to rename an object d. None of these

109. A constructor is called whenever a. a object is declared b. an object is used c. a class is declared d. a class is used

110. Overload function in C++ a. a group function with the same name b. all have the same number and type of arguments c. functions with same name and same number and type of arguments d. All of the above

111 The differences between constructors and destructor are a. constructors can take arguments but destructor can't b. constructors can be overloaded but destructors can't be overloaded c. both a & b d. None of these

112. A destructor takes a. one argument b. two arguments c. three arguments d. Zero arguments

113. The fields in a class of a c++ program are by default a. protected b. public c. private d. None of these

114. The number of the relational operators in the C language is a. Four b. Six c. Three d. One

115. The continue command cannot be used with a. for b. switch c. do d. while

116. In C, a Union is a. memory location b. memory store c. memory screen d None of these

117. Null character is represented by a) \n b) \0 c) \o d) \e

118. Which header file is essential for using strcmp() function? a) string.h b) strings.h c) text.h d) strcmp.h

119. Which among the following is a unconditional control structure a) do-while b) if-else c) goto d) for

120. Operators have hierarchy. It is used to know which operator a) is most important b) is used first c) is faster d) operates on large numbers

121. C was developed in the year ___ a) 1970 b) 1972 c) 1976 d) 1980

122. What is the valid range of numbers for int type of data? a) 0 to 256 b) -32768 to +32767 c) -65536 to +65536 d) No specific range

123. What will be the maximum size of a double variable? a) 1 byte b) 4 bytes c) 8 bytes d) 16 bytes

124. Which key on the keyboard can be used to view Slide show a) F1 b) F2 c) F5 d) F10

125. Which of the following is the latest version of Excel? a) Excel 2000 b) Excel 2002 c) Excel ME d) Excel XP

126. Which of the following is the oldest spread sheet package? a) VisiCalc b) Lotus 1-2-3 c) Excel d) StarCalc

127. A Worksheet can have a maximum of ___ number of rows a) 256 b) 1024 c) 32,000 d) 65,536

128. Outlook Express is a ___ a) E-Mail Client b) Scheduler c) Address Book d) All of the above

129. Which option in File pull-down menu is used to close a file in MSWord? a) New b) Quit c) Close d) Exit

130. Which command in DOS is used to display the version of MSDOS?

a) VERSION b) VERIFY c) VER d) VERSN

131. VIRUS stands for a) Very Important Resource Under Search b) Virtual Information Resource Under Seize c) Verify Interchange Result Until Source d) Very Important Record User Searched

132. Which of the following is not a valid capacity of a floppy disk? a) 360KB b) 720KB c) 1.24 MB d) 1.44 MB

133. Which technology is used in a CDROM Drive? a) Mechanical b) Electromechanical c) Optical d) Fiber Optical

138. Floppy Disk Drives were originally designed by a) IBM b) Sony c) Panasonic d) Samsung

139. Which storage device is mounted on 'reels'? a) Floppy Disk b) Hard Disk c) Magnetic Tapes d) CDROM

140. Which of the following storage devices can store maximum amount of data? a) Floppy Disk b) Hard Disk c) Compact Disk d) Magneto Optic Disk

141. The contents of information are stored ina) Memory data registerb) Memory address register c) Memory access register d) Memory arithmetic register

142. Which of the following is not a valid size of a Floppy Disk?

a) 8" b) 5 1/4" c) 3 1/2" d) 5 1/2"

.143) The basic operations performed by a computers are a) Arithmetic operationb) Logical operationc)  Storage and relatived)  All the above

144)In a student form what is the relationship b/w student and course(a)one to one(b)many to one(c)one to many(d)many to many

145. A trigger isa) a statement ..start of database..b)statements that r executed as a side effect to the modification to the databasec) is end of database...d)...none of these

146. DML stands for a) Data Manipulation Language b) Data modeling language c) Data Manufacturing language d) none of these

147.The command interpreter on UNIXa.) Kernelb.) Shellc.) Turbod.) None of the above

148. The data transmitted in the network is in the number of ___________a.) Bits per secondb.) Record per second c.) Words per secondd.) Hits per second

149.) The _________ Function changes a character string OR a number into oracle DATE FORMAT.

a.) TO_DATEb.) TO_CHARc.) NLS_DATEd.) CHAR_TO_DATE

150.) A view is a _________ table that allows you to access data from table a.) Physicalb.) Logicalc.) Based.) Master

151.) In ‘SMS’ Service of Mobile phones What does ‘M’ stand for.a.) Mobileb.) Messengerc.) Monitord.) None

152.) Very high activity of paging is calleda.) Swappingb.) Thrashingc.) Overlayingd.) None

153. RS-232C is a.) Super computerb.) Industry standard protocol for parallel communicationc.) Industry standard protocol for serial communicationd.) All the above

154. Plug and Play is bus feature where a.) Resource to a device are automatically assigned b.) Devices can be plugged when the bus is powered onc.) Bus can be plugged to another busd.) Devices can be plugged for playing games

155.) In IEEE 802.3 Ethernet the access method used is a.) Token ringb.) CSMA/CDc.) Both A and Bd.) None

156 In oracle which one of the following datatype is used to store Binary dataa.) Varcharb.) Numberc.) Longd.) Raw

157. SQL ‘Stands fora.) Sequential Query Languageb.) Structured Query Languagec.) Simple Query Languaged.) None

158. PL/SQL does not usea.) Triggersb.) Proceduresc.) Sub Programsd.) Functions

159. The Command ‘Truncate’ is used in oracle to a.) Reduce the width of a particular fieldb.) Remove contents of a field c.) Remove all the rows from the table d.) None of the

160.) DNS Stands for a.) Direct Network Serviceb.) Digital Network Service c.) Digital Network System d.) Domain Name Services