Bachelor of Computer Application (BCA) Bharathiar University Semester 6
Computer Network Previous Year Paper
1. _____________ have a single communication channel that is shared by all the machines on the network.
a. Broadcast links
b. Point-to-Point links
c. Internet
d. None of the above
1.0 Mark(s)
2. Short range wireless networks are called
a. Wireless LANs
b. Blue tooth
c. Wireless WANs
d. None of the above
1.0 Mark(s)
3. In telephone network, _____________ is the loss of energy as the signal propagates outwards.
a. Distortion
b. Noise
c. Attenuation
d. None of the above
1.0 Mark(s)
4. In a network, a connection that allows traffic either way, but only one way at a time is called _____________.
a. Half duplex
b. Full duplex
c. Simplex
d. None of the above
1.0 Mark(s)
5. _____________ is analogous to byte stuffing in which an escape byte is stuffed into the outgoing character stream before a flag byte in the data.
a. Character stuffing
b. Bit stuffing
c. String stuffing
d. None of the above
1.0 Mark(s)
6. CSMA stands for _____________.
a. Control System Medium Access
b. Common Sense Medium Access
c. Carrier Sense Multiple Access
d. None of the above
1.0 Mark(s)
7. In network, the packets are frequently called as ______________.
a. datagrams
b. containers
c. functions
d. none of the above
1.0 Mark(s)
8. ______________ algorithms change their routing decisions to reflect changes in the topology, and usually the traffic as well.
a. Non-adaptive
b. Adaptive
c. Pre-emptive
d. None of the above
1.0 Mark(s)
9. ______________ refers to the process of creating messages and answers.
a. Displaying
b. Disposition
c. Composition
d. None of the above
1.0 Mark(s)
10. MIME stands for
a. Multipurpose Internet Mail Extensions
b. Minimum Index Mail Extensions
c. Multipurpose Index Minimum Extensions
d. None of the above
1.0 Mark(s)
11. a. Explain the two types of transmission technology.
Or
b. What are the five service primitives for implementing a simple connection oriented service? Explain.
5.0 Mark(s)
12. a. Write short notes on MODEM.
Or
b. Explain briefly about geostationary satellites.
5.0 Mark(s)
13. a. Explain the procedure for bit stuffing with an example.
Or
b. What are the key assumptions made in dynamic channel allocation in LANs?
5.0 Mark(s)
14. a. Explain about store-and-forward packet switching.
Or
b. Write short notes on routing for mobile hosts.
5.0 Mark(s)
15. a. State the five basic functions supported by e-mail system and explain.
Or
b. Explain briefly the two fundamental principles of cryptography.
5.0 Mark(s)
16. a. Explain the functions of various layers in OSI reference model.
Or
b. Explain the various uses of computer networks.
8.0 Mark(s)
17. a. Explain the various guided transmission media used in computer networks.
Or
b. Explain in detail, the structure of the telephone system.
8.0 Mark(s)
18. a. Explain with examples, error detecting and correcting codes.
Or
b. Explain in detail on pure ALOHA system.
8.0 Mark(s)
19. a. Explain with an example, Dijkstra's shortest path routing algorithm.
Or
b. Explain the three protocol scenarios for establishing a connection using a three-way handshake.
8.0 Mark(s)
20. a. Explain in detail in MIME.
Or
b. Explain in detail on digital signatures.
8.0 Mark(s)
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