Computer Networking Objective type question with answer

Computer Networking 

1. Network of networks is known as _________

A. intranet. 

B. internet.

C. Local Area Network 

D. WAN.               

  ANSWER: B

2. An interconnection of ________________________ computers is called an Internet

 A. Distributed. 

B. Co-Ordinated. 

C. Autonomous. 

D. Integrated.              

ANSWER: C

 3. When a packet with the code is transmitted, it is received and processed by every machine on the network. This mode of operation is called

A. broadcasting. 

B. multi casting. 

C. unicasting. 

D. point-to-point.            

ANSWER: A

4. point-to-point transmission with one sender and one receiver is sometimes called ________

A. multicasting. 

B. unicasting. 

C. personal area network

 D. LAN.               

ANSWER: B

5. The entities comprising the corresponding layers on different machine are called ________

A. protocol. 

B. peers. 

C. interface. 

D. flow control.        

  ANSWER: B

6. When the packets are small and all the same size, they are often called ________

 A. packet switched. 

B. cells. 

C. circuit switched.

 D. virtual circuit.           

  ANSWER: B

 7. A collection of interconnected networks is called as __________

 A. internet. 

B. intranet. 

C. topology. 

D. interface.          

  ANSWER: A

 8. Starting around 1988, the more advanced ______ twisted pairs were introduced.

A. category3. 

B. category5. 

C. category 8. 

D. category10.              

  ANSWER: B

 9. Each ray is said to have a different mode, so a fiber having this property is called ________

A. unimode. 

B. singlemode

C. multimode. 

D. triplemode.         

  ANSWER: C

 10. The number of oscillations per second of a wave is called its ______

 A. wavelength. 

B. frequency.

C. spectrum.

 D. sequence.           

  ANSWER: B

 11. Most governments have set aside some frequency bands called the _______ bands for unlicensed usage .

A. IFS

B. ISM 

C. IRS 

D. IVS           

    ANSWER: B

12. The downward beams of a satellite can be broad , covering a substantial fraction of the earth's surface or narrow, covering an area only hundreds of kilometers in diameter. This mode of operation is known as a ____

A. bent pipe. 

B. foot print. 

C. uplink. 

D. downlink.           

ANSWER: A

13. The first geostationary satellite had a single spatial beam that illuminated about 1/3 of the earth's PM surface called its _______

 A. bent pipe.

 B. downlink

.C. foot print

.D. uplink.       

   ANSWER: C

14. Each end office has a number of outgoing lines to one or more nearby switching canters called ______

A. toll connecting trunks. 

B. toll office. 

C. local loop. 

D. end office.         

ANSWER: B

 15. __________ is the loss of energy as the signal propagates outward.

A. Attenuation. 

B. Distortion

C. Noise. 

D. Baud.             

  ANSWER: A

16. Sending packets to a group of stations is known as ______

A. broadcasting. 

B. multi-casting. 

C. uni-casting. 

D. point-to-point.            

ANSWER: D

17. Each area has a _________ agent which keeps track of all mobile hosts visiting the area.

A. mobile

 B. home. 

C. visitor. 

D. foreign.            

ANSWER: B

18. Ad-hoc networks are also called as ____________

A. MAN. 

B. MANET.

C. LAN. 

D. LANET.                    

ANSWER: B

19. An example for dynamic routing algorithm is _______.

A. Shortest path. 

B. Flooding.

C. Dijkstra. 

D. Distance vector.      

ANSWER: D

 20. ISO stands for _____________

A. International Standard Organization. 

B. International Student Organization.

C. Integrated Services Organization. 

D. Integrated standard organization.           

ANSWER: A