Computer Networks Solved MCQs

Computer Network MCQS

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

1 / 20

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

a. 35.8%

b. 37.8%

c. 35.5%

d. 36.8%

2 / 20

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

a. Time period

b. Frequency

c. Phase Shift

d. Phase

3 / 20

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

a. Half-duplex

b. Simplex

c. Automatic

d. Full-duplex

4 / 20

4. The IP header size is ………..

a. Depends upon the MDU

b. 60 bytes

c. 20 bytes

d. 20 to 60 bytes long

5 / 20

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

a. phase

b. frequency

c. peak amplitude

d. slope

6 / 20

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

a. Servers

b. Smartphones

c. Switch

d. PC

7 / 20

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

a. Star

b. Mesh

c. Ring

d. Bus

8 / 20

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

a. Entities

b. Servers

c. Components

d. Documents

9 / 20

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

a. ISOC

b. IEEE

c. ITU-T

d. FCC

10 / 20

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

a. Microwave link

b. Thin coaxial cable

c. Twisted pair cable

d. Fiber optic cable

11 / 20

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

a. Ring

b. Star

c. Hierarchical

d. Local area

12 / 20

12. A proxy server is used as the computer?

a. performing file handling

b. acting as a backup

c. accessing user permissions

d. with external access

13 / 20

13. Transmission data rate is decided by

a. network layer

b. data link layer

c. physical layer

d. transport layer

14 / 20

14. 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. 255.243.240

b. 255.255.0

c. 255.255.255.240

d. 255.255.0.0

15 / 20

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

a. inter-network communication

b. routing

c. Congestion control

d. Error control

16 / 20

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

a. FDM

b. Both FDM & TDM

c. TDM

d. PDM

17 / 20

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

a. Text

b. ASCII

c. RS232C

d. Centronics

18 / 20

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

a. To detect errors

b. Encryption of data

c. To transmit faster

d. To identify the user

19 / 20

19. Firewalls are frequently set up to block

a. UDP traffic

b. TCP traffic

c. Sensitive traffic

d. Sensitive traffic

20 / 20

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

a. Network

b. File server

c. All

d. Communication server

Your score is

The average score is 47%

Computer Networks Solved MCQs

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

About Me

Useful Links