Computer Networks Solved MCQs

Computer Networks Solved MCQs for Computer Instructor B-17 | AJKPSC & PPSC Exam Practice

Get ready for the Computer Instructor B-17 exams with our set of Computer Networks solved MCQs. Specifically created for AJKPSC and PPSC exams, these solved questions provide clear explanations of key networking concepts.

Computer Network MCQS

Computer Networks Solved MCQs for Computer Instructor B-17 | AJKPSC, FPSC, KPSC and PPSC

1 / 20

1. The IP header size is ………..

a. Depends upon the MDU

b. 20 to 60 bytes long

c. 20 bytes

d. 60 bytes

2 / 20

2. Which organization has authority over interstate and international commerce in the communications field?

a. ITU-T

b. FCC

c. ISOC

d. IEEE

3 / 20

3. Which multiplexing technique shifts each signal to a different carrier frequency.

a. PDM

b. Both FDM & TDM

c. FDM

d. TDM

4 / 20

4. Which of the following cannot be used as a transmission medium for 802.3 Ethernet?

a. Microwave link

b. Fiber optic cable

c. Twisted pair cable

d. Thin coaxial cable

5 / 20

5. Which of this is not a network edge device?

a. Switch

b. Servers

c. PC

d. Smartphones

6 / 20

6. What type of transmission occurs in communication between a computer and a keyboard?

a. Half-duplex

b. Full-duplex

c. Simplex

d. Automatic

7 / 20

7. Which networking topology requires a central controller or hub?

a. Bus

b. Ring

c. Star

d. Mesh

8 / 20

8. The IP network 192.168.50.0 is to be divided into 10 equal-sized subnets. Which of the following subnet masks can be used for this requirement?

a. 255.255.0

b. 255.255.0.0

c. 255.243.240

d. 255.255.255.240

9 / 20

9. In a frequency-domain plot, the horizontal axis measures the….

a. phase

b. peak amplitude

c. slope

d. frequency

10 / 20

10. Firewalls are frequently set up to block

a. Sensitive traffic

b. TCP traffic

c. Sensitive traffic

d. UDP traffic

11 / 20

11. What is the maximum efficiency of Slotted ALOHA when G = 1?

a. 35.5%

b. 37.8%

c. 35.8%

d. 36.8%

12 / 20

12. The term ……… describes the position of the waveform relative to time 0.

a. Frequency

b. Time period

c. Phase Shift

d. Phase

13 / 20

13. Which of the following is best network topology for large businesses?

a. Ring

b. Hierarchical

c. Star

d. Local area

14 / 20

14. Which of these is a standard interface for serial data transmission?

a. Centronics

b. RS232C

c. Text

d. ASCII

15 / 20

15. Parity Bits are used for which of the following purposes?

a. To transmit faster

b. Encryption of data

c. To identify the user

d. To detect errors

16 / 20

16. Which of the following enables users on a LAN to share computer programs and data?

a. Communication server

b. File server

c. Network

d. All

17 / 20

17. A proxy server is used as the computer?

a. accessing user permissions

b. acting as a backup

c. performing file handling

d. with external access

18 / 20

18. Transmission data rate is decided by

a. transport layer

b. network layer

c. data link layer

d. physical layer

19 / 20

19. Complex networks today are made up of hundreds and sometimes thousands of

a. Components

b. Documents

c. Entities

d. Servers

20 / 20

20. Which of the following does not represent a function of the network layer?

a. inter-network communication

b. Error control

c. routing

d. Congestion control

Your score is

The average score is 51%

Computer Networks Solved MCQs

Computer Networks Solved MCQs for Computer Instructor B-17 | AJKPSC & PPSC Exam Practice

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