UGC NET Sample Questions

UGC NET Computer science June 2012

13.  Which layer of OSI reference model uses the ICMP (Internet Control Message Protocol)?

(A) Transport layer

(B) Data link layer

(C) Network layer

(D) Application layer

Answer: C

14.  Decryption and encryption of data are the responsibility of which of the following layer?

(A) Physical layer

(B) Data Link layer

(C) Presentation layer

(D) Session layer

Answer: c

UGC JUNE 2010

1. End-to-End connectivity is provided from Last-to-Last in

(A) Network layer (B) Session layer

(C) Transport layer (D) Data link layer

Answer: C

UGC December 2008

3. Congestion control is done by

(A). Network layer (B). Physical layer

(C). Presentation layer (D). Application layer

Answer: a

More questions

4. Breaking the transmitted bit stream into frames is handled by the following OSI layer

1. data link layer B. Physical layer
2. C. transport layer D. network layer

Answer: A

5. Determining which route through the subnet to use is handled by the following OSI layer

A. Transport layer B. Physical layer

C. Network layer  D. Data link layer

Answer: C

6. In OSI, network architecture the dialogue control and token management are responsibility of

a. Sessionlayer  b. network layer c. transport layer d. data link layer

Answer: A

7. which of the following tasks is note performed by data link layer

a. frame synchronization b. flow control c. error control d. none of the above

Answer:D

8. The topology with highest reliability is

A.Bus topology   b.Star topology   c.ring topology d.mesh topology

Answer: d

9. A distributed data processing configuration in which all activities must pass through a centre located computer is called

a. ring network   b.spider network  c.hierarchical network  d.data control network

Answer: A

10. .Which of the following layer protocol are responsible for user and the application program support such as passwords ,resource sharing, file transfer and network management

a. layer 7 protocol b. layer 6 protocol

c. layer 5 protocol  d. layer 4 protocol

Answer:A

11. In OSI model which following layer transforms information from machine format into that understandable of

a. Application   b. Presentation  c. session  d. physical

Answer: B

12. Which of the OSI determines the interface of the system with the user?

a. network  b. application c. data link d. session

Answer: B

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