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POCKET QUESTIONS AND ANSWERS FOR

COMPUTER ANALYSTS, BANKERS AND

COMPUTER OPERATORS

1. Which is Computer Memory that does not forget ?

Ans: ROM

2. The computer memory holds data and ?

Ans: program

3. What is means by term RAM ?

Ans: Memory which can be both read and written to

4. Which computer memory is essentially empty ?

Ans: RAM

5. The bubbles in a bubble memory pack are created

with the help of ?

Ans: magnetic field

6. Virtual memory is -

Ans: an illusion of an extremely large memory

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7. Special locality refers to the problem that once a

location is referenced

Ans: a nearby location will be referenced soon

8. An example of a SPOOLED device

Ans: A line printer used to print the output of a number

of jobs

9. Page faults occurs when

Ans: one tries to divide a number by 0

10. Overlay is

Ans: a single contiguous memory that was used in the

olden days for running large programs by swapping

Operating System Question Answer

11. Concurrent processes are processes that -

Ans: Overlap in time

12. The page replacement policy that sometimes leads to

more page faults when the size of the memory is

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increased is -

Ans: FIFO

13. The only state transition that is initiated by the user

process itself is -

Ans: Block

14. Fragmentation is -

Ans: fragments of memory words unused in a page

15. Give Example of real time systems

Ans: Aircraft control system, A process control system

16. Dijkstra‟s banking algorithm in an operating system

solves the problem of -

Ans: Deadlock Avoidance

17. In a paged memory system, if the page size is

increased, then the internal fragmentation generally -

Ans: Becomes more

18. An operating system contains 3 user processes each

requiring 2 units of resources R. The minimum number

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of units of R such that no deadlock will ever occur is -

Ans: 4

19. Critical region is -

Ans: A set of instructions that access common shared

resources which exclude one another in time

20. Kernel is -

Ans: The set of primitive functions upon which the rest

of operating system functions are built up

21. Necessary conditions for deadlock are -

Ans: Non-preemption and circular wait, Mutual

exclusion and partial allocation

22. In a time sharing operating system, when the time

slot given to a process is completed, the process goes

from the RUNNING state to the -

Ans: READY state

23. Supervisor call -

Ans: Are privileged calls that are used to perform

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resource management functions, which are controlled by

the operating system

24. Semaphores are used to solve the problem of -

Ans: Mutual exclusion, Process synchronization

25. If the property of locality of reference is well

pronounced in a program-

Ans: The number of page faults will be less

Operating System Question

26. Pre-emptive scheduling, is the strategy of

temporarily suspending a running process-

Ans: before the CPU time slice expires

27. Mutual exclusion problem occurs -

Ans: among processes that share resources

27. Sector interleaving in disks is done by -

Ans: the operating system

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28. Disk scheduling involves deciding-

Ans: the order in which disk access requests must be

serviced

29. Dirty bit is used to show the -

Ans: page that is modified after being loaded into cache

memory

30. Fence register is used for-

Ans: memory protection.

31. The first-fit, best-fit and worst-fit algorithm can be

used for-

Ans: contiguous allocation of memory

32. Give example of single-user operating systems-

Ans: MS-DOS, XENIX

33. In Round Robin CPU Scheduling, as the time

quantum is increased, the average turn around time-

Ans: varies irregulary

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34. In a multiprogramming environment-

Ans: more than one process resides in the memory

35. The size of the virtual memory depends on the size

of the -

Ans: Address Bus

36. Give example of Scheduling Policies in which

context switching never take place-

Ans: Shortest Job First, First-cum-first-served

37. Suppose that a process is in „BLOCKED‟ state

waiting for some I/O service. When the service is

completed, it goes to the-

Ans: READY State

SECTION B

1.Which among the following is not a security / privacy

risk?

(A)Spam

(B)Hacking

(C)Virus

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(D)Phishing

(E)Vishing

Ans. Spam

2.Now a days Vishing has become a criminal practice of

using social engineering over which of the following?

(A)Social networking sites

(B)Mobile Phones

(C)E-mails

(D)Cyber cafés

(E)All of the above

Ans. Mobile Phones

3.When some unidentified / unknown person / firm

sends you mail in a trustworthy /lucrative way asking for

sensitive banks and online payment information, this is a

case of __?

(A)spam

(B)hacking

(C)Phishing

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(D)Vishing

(E)Simulation

Ans. Phishing

4.Which among the following is a correct definition of

“Digital Divide”?

(A) gap between people having access to mobile and

internet access

(B) gap between people having access to internet /IT and

no internet/IT

(C) gap between people having access to broadband and

narrowband internet

(D) gap between people having access to internet

banking and normal banking

(E)Gap between the people having an email account and

no email account

Ans. (B) gap between people having access

to internet /IT and no internet/IT

5.Which among the following is the most common

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source of Viruses to the hard disk of your computer?

(A)Incoming Email

(B)Outgoing Email

(C)CD Roms

(D)Websites

(E)Mobile

Ans. (A) Incoming Email

6.What is the fullform of W3C?

(A)World Wide Web Consortium

(B)World Wide Web Company

(C)World Wide Web Center

(D)World Wide Web Command

(E)None of them

Ans. (A) World Wide Web Consortium

7.Which among the following is used for removing a

software bug / defect which is available for free of cost

from the software provider?

(A)Version

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(B)Update

(C)Help

(D)Patch

(E)Syntax

Ans. (D) Patch

8.What is the name of the proposed software application

that would allow users of automated teller machines

(ATMs) to alert the police of a forced cash withdrawal

by entering their personal identification number (PIN) in

reverse order?

(A)ATM SafetyPIN

(B)ATM SafetyPro

(C)ATM SafetyCode

(D)ATM SafetySign

(E)ATM SafetyDigit

Ans. (A) ATM SafetyPIN

9.In the MICR Code Line Structure what do represent

the first three digits of Sort field number consisting of

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nine digits?

(A)City

(B)Bank

(C)Branch

(D)Account Type

(E)None of the above

Ans. first three digits represent the city, the

next three indicate the bank and the last

three digits signify the branch

10.Most of the internet banking sites provide which of

the following feature to reduce the risk of keystroke

logging for the password entry?

(A)Virtual keyboard

(B)Finger Touching

(C)Touchscreen

(D)ShapeWriter

(E)Dasher

Ans. (A) Virtual Keyboard

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11.ADSL data communications technology uses which

of the following for faster data transmission ?

(A)Voiceband modem

(B)Wireless Modem

(C)Copper telephone Lines

(D)Sockets

(E)None of the above

Ans. (C) Copper telephone Lines

12.While working on Microsoft World , which among

the following is the command for “Undo”?

(A)Cntrl +A

(B)Cntrl +Z

(C)Cntrl +Y

(D)Cntrl +C

(E)Cntrl +V

Ans. (B) Cntrl + Z

13.While browsing the internet , which of the following

key is used for full screen view?

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(A)F3

(B)F5

(C)F11

(D)F9

(E)F10

Ans. (C) F11

14.Which of the following is a suitable term for any

programmable content of a hardware device

configurations and data for application-specific

integrated circuits (ASICs), programmable logic devices,

etc.?

(A)Hardware

(B)Software

(C)Firmware

(D)Malware

(E)Liveware

Ans. (C) Firmware

15.Most of the internet sites now a days use CSS

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primarily to enable the separation of document content

(written in HTML or a similar markup language) from

document presentation, including elements such as the

layout, colors, and fonts. What is full form?

(A)Cascading Style Software

(B)Clear Style Sheet

(C)Cascading Style Sheet

(D)Common Style Sheet

(E)Conditional Style Sheet

Ans. (C) Cascading Style Sheet

16.What is the purpose of keeping electronic devices

such as computers, televisions, and remote controlled

devices on Sleep mode?

(A)Reduce Power consumption

(B)Back Up

(C)To write contents of RAM to hard disc

(D)To improve download speed

(E)None of the above

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Ans. (A) Deduce Power Consumption

17.Which of the following device is a volatile storage?

(A)RAM

(B)Hard Disc

(C)Magnetic Tape

(D)Floppy Disc

(E)ROM

Ans. (A) RAM

18.Which of the following company owns/ uses the

Virtual Hard Disk (.vhd) format for Virtual PC?

(A)IBM

(B)Microsoft

(C)Intel

(D)Google

(E)Apple

Ans. (B) Microsoft

19.What is Office Open XML?

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(A)A file format

(B)A software

(C)A electronic device

(D)An international standard

(E)None of the above

Ans. (A) A file format

20.What is the ultimate purpose of Defragmentation?

(A)Make the PC faster

(B)Create More Free Space

(C)Delete temporary files

(D)Reduce Power consumption

(E)All of the above

Ans. (B) Create More Free Space is the main

purpose however performance is also

improved in most cases.