Computer Networking MCQs – Networking GK Questions with Answers

1

Which device assigns IP addresses to devices in a network?

A. Router

B. Switch

C. Firewall

D. Hub

2

What does DNS stand for in networking?

A. Digital Name Server

B. Domain Number System

C. Domain Name System

D. Distributed Name Service

3

Which protocol is used for secure web browsing?

A. HTTP

B. FTP

C. HTTPS

D. SMTP

4

What does a switch operate at in the OSI model?

A. Layer 1

B. Layer 2

C. Layer 3

D. Layer 4

5

Which topology uses a central hub or switch?

A. Bus

B. Star

C. Ring

D. Mesh

6

Which IP address class is used for multicasting?

A. Class A

B. Class B

C. Class D

D. Class E

7

Which port does HTTP use by default?

A. 21

B. 22

C. 80

D. 443

8

What is the main function of a firewall?

A. File sharing

B. Block unauthorized access

C. Assign IP address

D. Store backups

9

Which layer of the OSI model handles routing?

A. Data Link

B. Network

C. Transport

D. Session

10

Which protocol is used for email transfer?

A. FTP

B. SMTP

C. POP

D. DNS

11

Which data communication method is used to transmit the data over a serial communication link?

A. simplex

B. half-duplex

C. full-duplex

D. b and c

12

An example of an analog communication method is

A. laser beam

B. microwave

C. voice grade telephone line

D. all of the above

13

Data communications monitors available on the software marked include

A. ENVIRON/1

B. TOTAL

C. BPL

D. Telnet

14

In communication satellite, multiple repeaters are known as

A. detector

B. modulator

C. stations

D. transponders

15

An example of a medium speed, switched communications service is

A. series 1000

B. data phone 50

C. DDD

D. All of the above

16

Communiction circuits that transmit data in both directions but not at the same time are operating in

A. a simplex mode

B. a half duplex mode

C. a full duplex mode

D. an asynchronous mode

17

Avalanche photodiode receivers can detect bits of transmitted data by receiving

A. 100 photons

B. 200 photons

C. 2000 photons

D. 300 photons

18

The loss in signal power as light travels down the fiber is called

A. attenuation

B. progragation

C. scattering

D. interruption

19

A band is always equivalent to

A. a byte

B. a bit

C. 100 bits

D. none of above

20

A remote batch-processing operation in which data is solely input to a 'central computer' would require

A. telegraphp line

B. simplex lines

C. mixed bad channel

D. all of above

21

A protocol is a set of rules governing a time sequence of events that must take place

A. between peers

B. between an interface

C. between modems

D. across an interface

22

Which of the following transmission systems provide the highest data rate to in individual device?

A. computer bus

B. telephone lines

C. voice and mode

D. lease lines

23

A data terminal serves as an

A. Effector

B. sensor

C. both a and b

D. neither a nor b

24

The channel in the data communication model can be

A. postal mail services

B. telephone lines

C. radio lines

D. any of the above

25

Ina synchronous modem, the receive equilizer is known as

A. adaptive equilizer

B. impariment equilizer

C. statistical equilizer

D. compromise equilizer

26

The receive equilizer reduces delay distortions using a

A. tapped delay lines

B. gearshift

C. descrambler

D. difference engine

27

Terminals are required for

A. real-time,batch processing & time-sharing

B. real time, time-sharing & distributed message processing

C. real time, distributed processing & manager inquiry

D. real-time, time sharing & message switching

28

An example of digital, rather than analog, communication is

A. DDD

B. DDS

C. WATS

D. DDT

29

What is the main difference between DDCMP and SDLC?

A. DDCMP does not need special hardware to final the beginning of a message

B. DDCMP has a message header

C. SDLC has a IP address

D. SDLC does not use CRC

30

What is the minimum number of wires needed to send data over a serial communication link layer?

A. 1

B. 2

C. 4

D. 6

Computer Networking Multiple Choice Questions (MCQs)

Computer Networking MCQs Practice MCQ Question and Answer

1 Which device assigns IP addresses to devices in a network?

Answer & Solution

2 What does DNS stand for in networking?

Answer & Solution

3 Which protocol is used for secure web browsing?

Answer & Solution

4 What does a switch operate at in the OSI model?

Answer & Solution

5 Which topology uses a central hub or switch?

Answer & Solution

6 Which IP address class is used for multicasting?

Answer & Solution

7 Which port does HTTP use by default?

Answer & Solution

8 What is the main function of a firewall?

Answer & Solution

9 Which layer of the OSI model handles routing?

Answer & Solution

10 Which protocol is used for email transfer?

Answer & Solution

11 Which data communication method is used to transmit the data over a serial communication link?

Answer & Solution

12 An example of an analog communication method is

Answer & Solution

13 Data communications monitors available on the software marked include

Answer & Solution

14 In communication satellite, multiple repeaters are known as

Answer & Solution

15 An example of a medium speed, switched communications service is

Answer & Solution

16 Communiction circuits that transmit data in both directions but not at the same time are operating in

Answer & Solution

17 Avalanche photodiode receivers can detect bits of transmitted data by receiving

Answer & Solution

18 The loss in signal power as light travels down the fiber is called

Answer & Solution

19 A band is always equivalent to

Answer & Solution

20 A remote batch-processing operation in which data is solely input to a 'central computer' would require

Answer & Solution

21 A protocol is a set of rules governing a time sequence of events that must take place

Answer & Solution

22 Which of the following transmission systems provide the highest data rate to in individual device?

Answer & Solution

23 A data terminal serves as an

Answer & Solution

24 The channel in the data communication model can be

Answer & Solution

25 Ina synchronous modem, the receive equilizer is known as

Answer & Solution

26 The receive equilizer reduces delay distortions using a

Answer & Solution

27 Terminals are required for

Answer & Solution

28 An example of digital, rather than analog, communication is

Answer & Solution

29 What is the main difference between DDCMP and SDLC?

Answer & Solution

30 What is the minimum number of wires needed to send data over a serial communication link layer?

Answer & Solution

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1

Which device assigns IP addresses to devices in a network?

2

What does DNS stand for in networking?

3

Which protocol is used for secure web browsing?

4

What does a switch operate at in the OSI model?

5

Which topology uses a central hub or switch?

6

Which IP address class is used for multicasting?

7

Which port does HTTP use by default?

8

What is the main function of a firewall?

9

Which layer of the OSI model handles routing?

10

Which protocol is used for email transfer?

11

Which data communication method is used to transmit the data over a serial communication link?

12

An example of an analog communication method is

13

Data communications monitors available on the software marked include

14

In communication satellite, multiple repeaters are known as

15

An example of a medium speed, switched communications service is

16

Communiction circuits that transmit data in both directions but not at the same time are operating in

17

Avalanche photodiode receivers can detect bits of transmitted data by receiving

18

The loss in signal power as light travels down the fiber is called

19

A band is always equivalent to

20

A remote batch-processing operation in which data is solely input to a 'central computer' would require

21

A protocol is a set of rules governing a time sequence of events that must take place

22

Which of the following transmission systems provide the highest data rate to in individual device?

23

A data terminal serves as an

24

The channel in the data communication model can be

25

Ina synchronous modem, the receive equilizer is known as

26

The receive equilizer reduces delay distortions using a

27

Terminals are required for

28

An example of digital, rather than analog, communication is

29

What is the main difference between DDCMP and SDLC?

30

What is the minimum number of wires needed to send data over a serial communication link layer?