Loksewa computer operator

Ramesh Kumar Yadav 

Public Service Commission

Non Gazatted First Class, Bibidh Service, Computer Operator or Equivalent Post

Competitive Written Examination

2073-01-29

Key (A)

Time: 45 minutes                                                                                          Full Marks: 50

Subject: Related to computers

It is mandatory to write down the Key of question paper. Failed to do so will result in disqualifying the answer script. Also, calculators are not allowed in exam hall.

Objective Questions (50 x 1 = 50 marks)

1.     IBM 1401 was brought to prepare the census report of …

1.     2018 BS

2.     2028 BS

3.     2038 BS

4.     2048 BS

2.     Transistor is related to ….. generation computers

1.     Second

2.     Third

3.     Fourth

4.     Fifth

3.     The ability to recover and read deleted or damaged files from a criminal’s computer is an example of an enforcement specially called

1.     Robotics

2.     Simulation

3.     Computer forensics

4.     Animation

4.     An area of a computer that temporarily holds data waiting to be processed is

1.     CPU

2.     Memory

3.     Storage

4.     File

5.     For reproducing sound, a CD (compact disk) audio player uses a …..

1.     Quartz crystal

2.     Titanium needle

3.     Laser beam

4.     Barium Titanium Ceramic

6.                 Unicode Standard is ….

1.     Software

2.     Font

3.     Character encoding system

4.     Keyboard layout

7.     A fault in a computer program which prevents it from working correctly is known as

1.     Boot

2.     Bug

3.     Biff

4.     Strap

8.     Program developed according to the requirement specific to an office is …

1.     Tailored software

2.     Utility software

3.     Packaged software

4.     All of above

9.     The difference between people with access to computers and the internet and those without these access is known as the

1.     Digital divide

2.     Internet divide

3.     Web divide

4.     E-Illiteracy

10. Cache memory …..

1.     Helps to store more data in hard disk

2.     Placed between main memory and microprocessor

3.     Stores data permanently

4.     Holds last time visited data only

11.             Which one of the following printers is suitable for printing sprocket fed carbon copies?

1.     Laser

2.     Dot matrix

3.     Ink jet

4.     Drum

12. …… are set of rules and procedures to control the data transmission over the internet

1.     IP address

2.     Domains

3.     Protocol

4.     Gateway

13. Which of the following is a file attribute?

1.     Hidden

2.     Achieve

3.     Read only

4.     All of above

14. …… are used to identify a user who returns to a website?

1.     Cookies

2.     Plug-ins

3.     Scripts

4.     Session

15. Windows 7 supports which of the following file system?

1.     NTFS

2.     FAT

3.     EXIT

4.     UNIX

16. Which among the following are the best tools for fixing errors in disk

1.     Fdisk

2.     Scandisk

3.     Chkdsk

4.     Fixdisk

17. …… runs on computer hardware and serve as platform for other software to run on

1.     Operating system

2.     Application software

3.     System software

4.     All of above

18. The operating system creates ….. from the physical computer

1.     Virtual space

2.     Virtual computers

3.     Virtual device

4.     None of above

19. The primary function of an operating system is

1.     To make the most efficient use of the computer hardware

2.     To allow people to use the computer

3.     To keep system programs employed

4.     To make computers easier to use

20. Thesaurus tool in MS Word is used for

1.     Spelling suggestions

2.     Grammar options

3.     Synonyms and antonyms word

4.     All of above

21. Which tab in Font dialog box contains options to apply font effects?

1.     Font tab

2.     Character spacing

3.     Text effects

4.     Standard toolbar

22. Which of the following is not of the merge process?

1.     Sort the data source records

2.     Format the main document

3.     Edit the data source

4.     Merge the two files to print or create a new document

23. A screen element of MS Word that is usually located below the title bar that provides categorized options is

1.     Menu bar

2.     Tool bar

3.     Status bar

4.     All of above

24. A word processor would most likely be used to do

1.     Keep an account of money spent

2.     Do a computer search in media center

3.     Maintain an inventory

4.     Type a biography

25. If you need to change the typeface of a document, which menu will you choose?

1.     Edit

2.     View

3.     Format

4.     Tools

26. ….. is a tool in Word which apply same format to different character/paragraphs?

1.     Format repeater

2.     Format applier

3.     Format painter

4.     Format generator

27. …. Switch the page between portrait and landscape layout

1.     Margins

2.     Size

3.     Columns

4.     Orientation

28. …. Enables several people to work to create and update a document

1.     Document sharing

2.     Document locking

3.     Document collaboration

4.     Document protection

29. When a hyperlink is created, Word formats the web address as …..

1.     Italicized and colored red

2.     Italicized and colored blue

3.     Underlined and colored red

4.     Underlined and colored blue

30.             Workbook is collection of

1.     Cells

2.     Worksheets

3.     Workspaces

4.     Projects

31. Shortcut key to bring format cells dialog box is:

1.     Ctrl+F

2.     Ctrl+E

3.     Ctrl+1

4.     Ctrl+D

32. The cell reference $A$5 is a …..

1.     Relative cell reference

2.     Absolute cell reference

3.     Mixed cell reference

4.     None of above

33. Function to get some of the contents of the cells A1, A2, B1, B2 is ….

1.     =sum(A1+A2+B1+B2)

2.     =sum(A1:B2)

3.     =total(A1..B2)

4.     =sum(A1,B2)

34. To edit the contents of cell

1.     Press F2

2.     Double click on cell

3.     Click on Formula bar

4.     All of above

35. Graphical representation of worksheet data

1.     Pivote table

2.     Goal seek

3.     Graph

4.     Scenario

36. Filter option is used to ….

1.     Arrange data in alphabetical order

2.     Arrange data in numeric order

3.     Arrange data in chronological order

4.     Extract the records that meet given criteria

37.             The formula =if(A1>B1, A1-B1, B1-A1) gives

1.     Larger one from cell A1 & B1

2.     Positive difference of A1 & B1

3.     Contents of A1

4.     Contents of B1

38. How do you display updatable current date in MS Excel?

1.     DATE()

2.     TODAY()

3.     NOW()

4.     Ctrl+;

39. A function inside another function is called

1.     Nested function

2.     Round function

3.     Sum function

4.     Text function

40. What are the different views to display a table?

1.     Datasheet view

2.     Design view

3.     Pivot table and pivot chart view

4.     All of above

41. In a database table, the category of information is called

1.     Tuple

2.     Field

3.     Record

4.     All of above

42. This key uniquely identify each record

1.     Primary key

2.     Key record

3.     Unique key

4.     Field name

43. ….. enables you to view data from a table based on a specific criterion

1.     Form

2.     Query

3.     Macro

4.     Report

44. A database language concerned with the definition of the whole database structure and schema is

1.     DCL

2.     DML

3.     DDL

4.     All of above

45. In Microsoft PowerPoint in order to see all the slides on one screen you use

1.     View, slide sorter

2.     View, slide

3.     View, master

4.     View, slide show

46. What are the three options available in Insert >> Picture menu

1.     Clipart, Pictures, Shapes

2.     Clipart, From file, Shapes

3.     Clipart, From file, Autoshapes

4.     Clipart, Pictures, Autoshapes

47. Which of the following font effect is not available in PowerPoint font dialog box?

1.     Underline

2.     Shadow

3.     Emboss

4.     Strikethrough

48. Full form of HTML is

1.     Hypertext Markup Language

2.     Hotmail

3.     Hypertext Mail Language

4.     All of above

49. In HTML ….. tag is used for linking an external document

1.     <src>

2.     <anchor>

3.     <a>

4.     <include>

50. To set the background color we use

1.     <body text=“color”>

2.     <body=“color”>

3.     <body bgcolor=“color”>

4.     All of above

The End

1 Computer Network is
A. Collection of hardware components and computers
B. Interconnected by communication channels
C. Sharing of resources and information
D. All of the Above

2. Protocols are?
A. Agreements on how communication components and DTE's are to communicate
B. Logical communication channels for transferring data
C. Physical communication channels sued for transferring data
D. None of above

​3. Two devices are in network if
A. a process in one device is able to exchange information with a process in another device
B. a process is running on both devices
C. PIDs of the processes running of different devices are same
D. none of the mentioned

4. what is a Firewall in Computer Network?
A. The physical boundary of Network
B. An operating System of Computer Network
C. A system designed to prevent unauthorized access
D. A web browsing Software

5. The IETF standards documents are called
A. RFC
B. RCF
C. ID
D. None of the mentioned

6. Which data communication method is used to transmit the data over a serial communication link?
A. Simplex
B. Half-duplex
C. Full duplex
D. All of above

7. Each IP packet must contain
A. Only Source address
B. Only Destination address
C. Source and Destination address
D. Source or Destination address

8. What is the minimum header size of an IP packet?
A. 16 bytes
B. 10 bytes
C. 20 bytes
D. 32 bytes

9. Routing tables of a router keeps track of
A. MAC Address Assignments
B. Port Assignments to network devices
C. Distribute IP address to network devices
D. Routes to use for forwarding data to its destination

10. Which of the following is not the External Security Threats?
A. Front-door Threats
B. Back-door Threats
C. Underground Threats
D. Denial of Service (DoS)

11. What is the IP Address range of APIPA?
A. 169.254.0.1 to 169.254.0.254
B. 169.254.0.1 to 169.254.0.255
C. 169.254.0.1 to 169.254.255.254
D. 169.254.0.1 to 169.254.255.255

12. Which of the following is not the possible ways of data exchange?
A. Simplex
B. Multiplex
C. Half-duplex
D. Full-duplex

13. The management of data flow between computers or devices or between nodes in a network is called
A. Flow control
B. Data Control
C. Data Management
D. Flow Management

14. What does the port number in a TCP connection specify?
A. It specifies the communication process on the two end systems
B. It specifies the quality of the data & connection
C. It specify the size of data
D. All of the above

15. What is the purpose of the PSH flag in the TCP header?
A. Typically used to indicate end of message
B. Typically used to indicate beginning of message
C. Typically used to push the message
D. Typically used to indicate stop the message

16. Which of the following protocol is/are defined in Transport layer?
A. FTP
B. TCP
C. UDP
D. B & C

17. The meaning of Straight-through Cable is
A. Four wire pairs connect to the same pin on each end
B. The cable Which Directly connects Computer to Computer
C. Four wire pairs not twisted with each other
D. The cable which is not twisted

18. What is the size of MAC Address?
A. 16-bits
B. 32-bits
C. 48-bits
D. 64-bits

19. Repeater operates in which layer of the OSI model?
A. Physical layer
B. Data link layer
C. Network layer
D. Transport layer

20. Which of the following layer of OSI model also called end-to-end layer?
A. Presentation layer
B. Network layer
C. Session layer
D. Transport layer

21. Router operates in which layer of OSI Reference Model?
A. Layer 1 (Physical Layer)
B. Layer 3 (Network Layer)
C. Layer 4 (Transport Layer)
D. Layer 7 (Application Layer)

22. ADSL is the abbreviation of
A. Asymmetric Dual Subscriber Line
B. Asymmetric Digital System Line
C. Asymmetric Dual System Line
D. Asymmetric Digital Subscriber Line

23. How many layers does OSI Reference Model has?
A. 4
B. 5
C. 6
D. 7

24 Bridge works in which layer of the OSI model?
A. Appliation layer
B. Transport layer
C. Network layer
D. Datalink layer

25. Why IP Protocol is considered as unreliable?
A. A packet may be lost
B. Packets may arrive out of order
C. Duplicate packets may be generated
D. All of the above

26. What is the benefit of the Networking?
A. File Sharing
B. Easier access to Resources
C. Easier Backups
D. All of the Above

27. Which of the following is not the Networking Devices?
A. Gateways
B. Linux
C. Routers
D. Firewalls

28. What is the maximum header size of an IP packet?
A. 32 bytes
B. 64 bytes
C. 30 bytes
D. 60 bytes

29. Which of the following is correct in VLSM?
A. Can have subnets of different sizes
B. Subnets must be in same size
C. No required of subnet
D. All of above

30. DHCP Server provides _____ to the client.
A. Protocol
B. IP Address
C. MAC Address
D. Network Address

31. What is the address size of IPv6 ?
A. 32 bit
B. 64 bit
C. 128 bit
D. 256 bit

32. What is the size of Network bits & Host bits of Class A of IP address?
A. Network bits 7, Host bits 24
B. Network bits 8, Host bits 24
C. Network bits 7, Host bits 23
D. Network bits 8, Host bits 23

33. What is the full form of RAID ?
A. Redundant Array of Independent Disks
B. Redundant Array of Important Disks
C. Random Access of Independent Disks
D. Random Access of Important Disks

34. What do you mean by broadcasting in Networking?
A. It means addressing a packet to all machine
B. It means addressing a packet to some machine
C. It means addressing a packet to a particular machine
D. It means addressing a packet to except a particular machine

35. What is the size of Source and Destination IP address in IP header?
A. 4 bits
B. 8 bits
C. 16 bits
D. 32 bits

36. What is the typical range of Ephemeral ports?
A. 1 to 80
B. 1 to 1024
C. 80 to 8080
D. 1024 to 65535

37. A set of rules that govern all aspects of information communication is called
A. Server
B. Internet
C. Protocol
D. OSI Model

38. Controlling access to a network by analyzing the incoming and outgoing packets is called
A. IP Filtering
B. Data Filtering
C. Packet Filtering
D. Firewall Filtering

39. DHCP is the abbreviation of
A. Dynamic Host Control Protocol
B. Dynamic Host Configuration Protocol
C. Dynamic Hyper Control Protocol
D. Dynamic Hyper Configuration Protocol

40. What is the use of Bridge in Network?
A. to connect LANs
B. to separate LANs
C. to control Network Speed
D. All of the above

41. Network congestion occurs
A. in case of traffic overloading
B. when a system terminates
C. when connection between two nodes terminates
D. none of the mentioned

42. What is the meaning of Bandwidth in Network?
A. Transmission capacity of a communication channels
B. Connected Computers in the Network
C. Class of IP used in Network
D. None of Above

43 Which of the following is correct regarding Class B Address of IP address
A. Network bit – 14, Host bit – 16
B. Network bit – 16, Host bit – 14
C. Network bit – 18, Host bit – 16
D. Network bit – 12, Host bit – 14

44. ............provides a connection-oriented reliable service for sending messages
A. TCP
B. IP
C. UDP
D. All of the above

45. What does Router do in a network?
A. Forwards a packet to all outgoing links
B. Forwards a packet to the next free outgoing link
C. Determines on which outing link a packet is to be forwarded
D. Forwards a packet to all outgoing links except the originated link

46. What is the use of Ping command?
A. To test a device on the network is reachable
B. To test a hard disk fault
C. To test a bug in a Application
D. To test a Pinter Quality

47. What is the size of Host bits in Class B of IP address?
A. 04
B. 08
C. 16
D. 32

48. Which of the following is correct in CIDR?
A. Class A includes Class B network
B. There are only two networks
C. There are high & low class network
D. There is no concept of class A, B, C networks

49. The processes on each machine that communicate at a given layer are called
A. UDP process
B. Intranet process
C. Server technology
D. Peer-peer process

50. Which of the following layer is not network support layer?
A. Transport Layer
B. Network Layers
C. Data link Layer
D. Physical Layer

Correct Answers of Computer Networks MCQ Questions

1-D	2-A	3-A	4-C	5-A	6-C	7-C	8-C	9-D	10-C
11-C	12-B	13-A	14-A	15-A	16-D	17-A	18-C	19-A	20-D
21-B	22-D	23-D	24-D	25-D	26-D	27-B	28-D	29-A	30-B
31-C	32-A	33-A	34-A	35-D	36-D	37-C	38-C	39-B	40-A
41-A	42-A	43-A	44-A	45-C	46-A	47-C	48-D	49-D	50-A