Computer Quiz – PREPQA

Practice question Set 1

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1 / 150

_______Is a high level abstraction over semaphore?

Shared memory

Monitor

Mutual exclusion

None of these

2 / 150

Which of the programming language started from Second Generation?

LISP

COBOL

C

BASIC

3 / 150

Hardware and software designed to guard against unauthorized access to computer network is known as

Hacker proofs program

Hacker resistant server

Firewall

All of the above

4 / 150

A system program that combines the separately compiled modules of a program into a form suittable for execution?

Assembler

Linking loader

Cross compiler

Load and go

5 / 150

VIRUS Stands for

Vital information resource under seize

Very important resource under seize

Verify interchange result until source

Very important record under search

6 / 150

During the boot process, the ........ looks for the system files?

CD

BIOS

CPU

DVD

7 / 150

A major security problem for operating system is?

Authentication problem

Physical problem

Human problem

None of these

8 / 150

Operating system is also known as?

Database

System software

Hardware

Printer

9 / 150

Process is?

Program in high level language kept on disk

Contets of main memory

Program in execution

A job in secondary memory

10 / 150

Hard disk is coated in both side with

Magnetic metallic oxide

Optical metallic oxide

Carbon layer

All of the above

11 / 150

Which of the following topologies consists of multiple CPU connected single communication line running the length of the network?

Tree

Ring

Bus

Star

12 / 150

What is the full form of HTML?

Hyper Teach Markup Language

Hyper Text Markup Language

Hyper Tech Markup Language

Hyper Text Makeup Language

13 / 150

Linux is a/n ........ operating system?

Open source

Mac

windows

Embedded

14 / 150

Computer professional working in a computer center are

Humanware

Software

Hardware

Firmware

15 / 150

Which is not correct?

primary key does not allow duplicate entry

primary key must be numeric field only

primary key is essential for relationship

primary key does not accept null value

16 / 150

What is the full form of COMPUTER?

Common Operating Machine Purposely Used for Technological and Educational Research

Common Operating Machine Professionally Used for Technological and Educational Research

Computer is not an acronym

Complex Operating Machine Professionally Used for Technological and Educational Research

17 / 150

All of the following are examples of real security and privacy risks except?

Spam

Hacker

Virus

Theft

18 / 150

Resolution of externally defined sumbols is performed by?

Linker

Loader

Compiler

Assembler

19 / 150

A microsoft windows is........a(n?

Operating system

Graphic program

Word processing

Database

20 / 150

What is the most common tool used to restrict access to computer system?

Computer keys

Access control software

User login

Password

21 / 150

What type of computer programming is used for airplane ticket reservation system?

Multi programming

Real time programming

Time sharing

Single

22 / 150

Telnet is a service that runs?

Remote program

Telivision on net

Telnet

Cable tv network

23 / 150

Which of the following algorithm suffers from the belady's anomly?

FIFO

LIFO

Optimal algorithm

None of these

24 / 150

An assembler is used to translate a program written in?

A low language

A high language

Middle language

Assembly language

25 / 150

A term used to describe interconnected computer configuration is--?

Multi programming

Modulation

Multiprocessing

Multi-threading

26 / 150

A hard disk becomes totally inaccessible when a computer virus corrupts its?

Partition table

Route directory

Cylinder

Disk stack

27 / 150

Special effect used to introduce slides in presentation are called

Transition

custom animation

setup show

action button

28 / 150

The path from which data flows in a computer system is known as

Road

Air

Bus

Car

29 / 150

Security violation due to?

Malicious

Accidental

Both A and B

None of these

30 / 150

Which is true about Unicode

Universal Character Encoding

Universal Code Encoding

Unique Code Encoding

Unique Character Encoding

31 / 150

Which of the following is the correct HTML code for creating hyperlink?

<a>https://www.prepqa.com</a>

<a name="https://www.prepqa.com">PREPQA</a>

<a url="https://www.prepqa.com">PREPQA</a>

<a href="https://www.prepqa.com">PREPQA</a>

32 / 150

which of the following is not a selection technique?

To select a word, double click the word

To select entire table, click the empty box to the left of the field name

To select a row, click the record selection box to the left of the row

To select a column, double click anywhere in the column

33 / 150

Which is not application software?

Windows NT

Page Maker

Winword XP

Photoshop

34 / 150

The term GIGO is related to

Accuracy

Reliability

Versatility

Automaticity

35 / 150

Maximum number of decimal places you can put in MS excel is

30

33

35

38

36 / 150

Which of the following processors use RISE technology?

468dx

Power PC

486sx

Processor

37 / 150

Which of the following is not a computer language

High level language

Low level language

Medium level language

None of above

38 / 150

Every set in the dotted decimal format of IP address is called

Subset

IP set

Octet

Subnet

39 / 150

A compiler is______?

A combination of computer hardware

A program which translates from one high-level language to another

A program which translates from one high-Level to a machine level language

None of these

40 / 150

Which of the following memories allows simultaneous read and write operation?

ROM

EPROM

RAM

All of the above

41 / 150

Which command is used to see the sub-directory structure of drive?

Tree

List

Subtree

None of these

42 / 150

Round robin scheduling is essentially the preemptive version of_______?

FIFO

Shortest job first

Shortes remaining

Longest time first

43 / 150

Which of the following is the process by which a users privileges risks except?

Access control

Authorization

Authentication

None of these

44 / 150

Who is the CEO of Google?

Larry Page

Sundar Pichai

Elon Musk

None of these

45 / 150

In 1999, the Mellissa virus was a widely publicized:

Macro virus

Email virus

Trojan horse virus

System virus

46 / 150

Correcting errors in a program is referred to as?

Debugging

Bugging

Rectifying

Modifying

47 / 150

The.....program compresses large files into a smaller file?

WinZip

WinShrink

WinStyle

None of these

48 / 150

Which of the following registers is loaded with the contents of the memory location pointed by the PC?

Instruction register

Memory address register

Program counter

All of above

49 / 150

Magnetic dicks are the most popular medium for

Direct access

Sequential access

Random access

None of above

50 / 150

EPROM can be used for

Erasing the contents of ROM

Reconstructing the contents of ROM

Erasing and Reconstructing the contents of ROM

Duplicating ROM

51 / 150

The software that performs the specific jobs to be done in a business is called?

System software

Application software

Utilities

OS

52 / 150

Assembly language started to be used from

First generation computers

second generation computers

third generation computers

fourth generation computers

53 / 150

……… Is used to prevent the loss of data during power failures.

Surge Protector

UPS

Encryption program

Firewall

54 / 150

Memory management is?

Replaced with virtual memory on current systems

Not used on multiprogramming systems

Not used in modern operating system

Critical for even the simplest operating systems

55 / 150

Latency Time is

Time to spin the needed data under head

Time to spin the needed data under track

Time to spin data under sector

All of above

56 / 150

Memory is made up of

Set of wires

Set of circuits

Large number of cell

All of these

57 / 150

Bootstrap or vector is called?

Main program

Grappling hook program

Secondary program

Primary storage

58 / 150

Malicious software is known as:

BadWare

Malware

Malicious ware

Illegal ware

59 / 150

Second Generation of Computer was based on which of the following ?

Silicon Chips

Vacuum Tube

Transistor

Bio Chips

60 / 150

An approach that permits the computer to work on several programs instead of one is--?

On-line thesaurus

Over lapped processing

Multiprogramming

Multi user

61 / 150

Main storage is also called

Memory

Register

Accumulator

Storage unit

62 / 150

which of the following is the programming language?

Stop

Go

Both A & B

None of above

63 / 150

Virtual memory is.......?

An extremely large main memory

An extremely large secondary memory

All illusion of extremely large main memory

A type of memory used in super computers

64 / 150

A popular operating system used with micro-computer is--?

DOS

UNIX

XENIX

Embedded

65 / 150

The number of processes completed per unit time is known as......?

Output

Throughput

Efficiently

Capacity

66 / 150

Reading data is performed in magnetic disk by?

Read/write heads

Sectors

Track

Lower surface

67 / 150

Which of the following is most powerful computers?

Mainframe Computers

Mini Computers

Micro Computers

Super Computers

68 / 150

What is the name of the latest server operating system developed by microsoft?

Windows 2008

Windows server 2016

Windows server 2019

Windows 2003

69 / 150

Paging is a technique?

Used to increase the priority of processed that are waiting for long times

Used to decrease the priority that are waiting for long time

Used to increase the priority of processed that are currently running

Used to decrease the priority processes that are currently running

70 / 150

The bankers algorithm is used?

To prevent deadlock in operating sys

To detect deadlock in operating systems

To rectify a deadlocked state

None of these

71 / 150

What is the maximum length allowed for primary name of a computer file under DOS?

8

12

3

None of these

72 / 150

In wildcard specification '?' Is used as replacement for?

One character

Two character

Three character

None of these

73 / 150

Group of instructions that directs a computer is called--?

Programs

Logic

Memory

CPU

74 / 150

Row facts and figures about any particular topic are

Facts

Data

Information

Material

75 / 150

The batch file uses the extension?

BAT

DOC

Bach

DOS

76 / 150

Concurrent process are?

Processes that do not overlap in time

Process that overlap in time

Processes that are executed by the processor at yhe same time

None of these

77 / 150

When a logic bomb is activated by a time-related event, it is known as a:

Inkjet bomb

Time bomb

Time-related bomb sequence

Item bomb

78 / 150

The common name for the crime of stealing password is:

Jacking

Hacking

Packing

Spoofing

79 / 150

What is page stealing?

It takes page frames from other working sets

To increase the capacity of main memory

To speed up main memory read operation

None of these

80 / 150

The Computer abbreviation KB usually means

Key Block

Kilo Byte

Kilo Bit

Kernal Boot

81 / 150

Which of the following refers to the associative memory?

The address of the data is generated by the CPU

The address of the data is supplied by the users

There is no need for an address i.e the data is used as an address

The data are accessed sequentially

82 / 150

Which of the following is the fastest memory?

Register

Cache

RAM

ROM

83 / 150

The DIR command in DOS operating system?

Extracts a list of file names

Copies files

Erases file

None of these

84 / 150

To avoid the race condition, the number of processes that may be simultaneously inside their critical section is?

8

1

16

0

85 / 150

Which of the following is program group?

Accessories

Paint

Word

All of above

86 / 150

What is the name of the latest server operating system developed by microsoft?

Windows NT

Windows 2000

Windows XP

Windows 2003

87 / 150

Which is not the state of the process?

Blocked

Running

Ready

Privileged

88 / 150

RJ45 UPT cable has ...... cables.

2 pair

3 pair

4 pair

5 pair

89 / 150

What is the size of source and destination IP address under IP header?

4 bits

8 bits

16 bits

32 bits

90 / 150

The part of machine level instruction which tells the center processor what has to be done, is?

Operation code

Address

Locater

Flip flop

91 / 150

FIFO scheduling is_____?

Non preemptive scheduling

Deadline scheduling

Preemptive scheduling

Fair share scheduling

92 / 150

What is the name given to the database management system which is able to handle full text data, image data, audio & video?

Full media

Multimedia

Video

Picture

93 / 150

A computer system that permits multiple users to run programs at same time ?

Real time system

Multi-tasking system

Time sharing

Multi-processing

94 / 150

A system program which helps the execution of user programs is known as........?

System software

Operating system

Application program

Entertainment

95 / 150

In which year was chip used inside the computer for the first time?

1994

1975

1999

1944

96 / 150

Which of the printers used in conjunction with computers uses dry ink powder?

Daisy wheel printer

Line printer

Laser Printer

Thermal Printer

97 / 150

------ is the measurement of things such is fingerprints& retinal scans used for security access.

Bio measurement

Biometrics

Smart weapon

Computer Security

98 / 150

……… Is defined as any crime completed through the use of computer technology

Computer crime

Computer forensics

Computer cracking

Hacking

99 / 150

Which of the following commands is goven to reboot the computer?

Ctrl + Alt + Del

Ctrl + Alt + TAB

Ctrl + Shift + Del

Ctrl + Alt + Shift

100 / 150

Which of the following required large computer memory?

Imaging

Voice

Graphics

All of these

101 / 150

An approach that permits the computer to work on several programs instead of one is--?

On-line thesaurus

Over lapped processing

Multiprogramming

Multi user

102 / 150

which of the following database object asks a question of information in a database and then displays the results?

Tables

Reports

Queries

Forms

103 / 150

MS_DOS is a ...... operating system ?

User-friendly

command-driven

Popular

GUI

104 / 150

A computer communication technology that provides a way to interconnect multiple computer across short distance is?

LAN

WAN

MAN

Wireless Network

105 / 150

The Output Quality of a printer is measured by

Dot per inch

Dot per sq. inch

Dot printed per unit time

All of the above

106 / 150

Which directory implementation is used in most Operating System?

Single level directory structure

Two level directory structure

Tree directory structure

Acyclic directory structure

107 / 150

Which of the following scheduling policy is well suited for time shared operating system?

Shortest job first

Round robin

First com first serve

Elevator

108 / 150

Memory management is?

Not used in modern operating system

Critical for even the simplest operating systems

Not used on multiprogramming systems

Replaced with virtual memory on on current systems

109 / 150

Which of the computer cocieved by Babbage?

Analytical engine

Arithmetic engine

Donald Knuth

All of above

110 / 150

1. Find out who is not the inventor of transistors among the following names

John Burdeen

William Shockley

Walter Brattain

Lee de Forest

111 / 150

Which of the following is not an Xt microprocessor?

8006

8088

8086

None of the above

112 / 150

2. DCL provides commands to perform actions like

Change the structure of tables

insert data into tables

Manage Users and Privileges

Create, delete, and manage database objects such as queries, forms, reports, etc.

113 / 150

The mechanism that bring a page into memory only when it is needed is called?

Sagmntation

Fragmentation

Demand paging

Page and replacement

114 / 150

A public key encryption system?

Allows only the correct receiver to decode the data

Allows only on to decode the transmission

Allows only the correct sender to decode the data

Does not encode the data before transmitting it

115 / 150

First electronic computer was developed by

Bill Gates

J.V. Attansoff

Simur Cray

Winton Serf

116 / 150

Size of the virtual memory depends upon?

Data bus

Address bus

Size of main memory

Memory buffer register

117 / 150

A kind of serial dot-matrix printer that forms characters with magnetically charged ink sprayed dots is called

Laser printer

Ink-jet printer

Drum printer

Chan printer

118 / 150

who is ‎Larry Page?

CEO of Google

Founder of Google

CEO of Facebook

None of these

119 / 150

Which of following approaches do not require knowledge of the system state?

Deadlock detection

Deadlock avoidance

Deadlock prevention

None of these

120 / 150

To protect system, there are how many security levels?

1

2

3

4

121 / 150

Every file must have a.........?

Data

File name

Records

Field

122 / 150

Who invented Slide Rules?

John Napier

William Oughtred

Gottfried Leibnitz

Blaise Pascal

123 / 150

Which part of the computer is used for calculating and comparing?

Disk unit

Control unit

ALU

Modem

124 / 150

Which of the following can be software?

Router

Firewall

Gateway

Modem

125 / 150

Relationship in a database is maintained through

Tables

Keys

views

indexes

126 / 150

A computer program that instruct other programs to perform a particular type of operation is--?

System software

Compiler

Interpreter

Package software

127 / 150

The processes of starting or restarting a computer system by loading instruction from a secondary storage device into the completer memory is called---?

Duping

Booting

Padding

Restarting

128 / 150

A device that forwards data packet from one network to another is called a?

Bridge

Switch

Hub

Gateway

129 / 150

Which of the following is/are Web Search Engine?

Google

Bing

Both A & B

None of above

130 / 150

A directly accessible appointment calendar is feature of a--- resident package?

CPU

Memory

ALU

Hard disk

131 / 150

An intentionally disruptive program that spread from program to program or disk to disk is known as a

Virus

Trojan horse

Time Bomb

Time-related bomb Sequence

132 / 150

How many characters form a secondary name for a file?

8

12

3

None of these

133 / 150

With DOS, you may use the '*' and '?':

When changing the default setting

To represent unspecified characters in a filename

Instead of wildcard characters

In the extension but not in the drive name or the file name

134 / 150

A tree structured file directory system ?

Allows easy storage and retrieval of file names

Is a much debated unecessary feature

Is not essential when we have millions of files

None of these

135 / 150

It is not possible to have a deadlock involving only a single process. Why?

This follows directly from the hold-and-wait condition

This holds mutual exclusion,hold-and-wait and non-preemption

Because single process not always in safe state

None of these

136 / 150

Which protocol does ping use?

TCP

ARP

ICMP

None of above

137 / 150

Which of the following is most common type memory in use today?

Dynamic RAM

Static RAM

RAM

EPROM

138 / 150

The maximum amount of information that is available in one portion of the disk access arm for a removal disk pack(without further movement of the arm with multiple heads)?

A cylinder of data

A track of data

A block of data

A plate of data

139 / 150

In latest generation of computer, the instruction are executed

Both sequentially and parallel

Parallel only

Sequential only

None of the above

140 / 150

Using windows explorer, a plus(+ sign in front of a folder indicates........?

An open folder

The folder contains subfolder

The text file

None of these

141 / 150

Not a text alignment direction in MS excel cells

left to right

right to left

context

fill

142 / 150

The startup routine runs, when mechine boots up is known as?

POST

BOOT up

Operating Routine

I/O operation

143 / 150

The part of machine level instruction, which tells the Central processor what has to be done,is?

Operating code

Address

Locator

Flip-Flop

144 / 150

Which technology is more reliable?

Mechanical

Electro-Mechanical

Electronic

Magnetic

145 / 150

Which of the following memories must be refreshed many time per second?

Dynamic RAM

Static RAM

RAM

EPROM

146 / 150

The simplest way to break a deadlock is to?

Kill one of the processes

Roll back

Preempt a resource

Lock one of the processes

147 / 150

Since virus are only a form of software, they primarily infect--?

Programs

Data

Hardware

None of these

148 / 150

what is the name of an application program that gathers user information and sends it to someone through the internet?

Logic bomb

A virus

Spybot

Security patch

149 / 150

what degrees of text of alignment orientation is possible in MS excel cells?

0 to 90

-90 to 0

-90 to 90

0 to 180

150 / 150

Dead-lock in an Operating System is?

Definite waiting process

Desirable process

Undesirable process

ALL

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