Reg. No. :

M.C.A. DEGREE EXAMINATION, AUGUST/SEPTEMBER 2017.

Elective

DMC 1972 — TCP/IP PROTOCOL SUITE

(Regulations 2009)

Time : Three hours Maximum : 100 marks

Answer ALL questions.

PART A — (10 2 = 20 marks)

1. Compare and contrast the functions of data link layer and transport layer.

2. State the advantages of fiber optic cable over twisted pair.

3. An IP packet has arrived with the first 8 bits as shown: 01000010. The receiver

discards the packet. Why?

4. If a label in a connection-oriented service is n bits, how many virtual circuits

can be established at the same time?

5. Why the registration request and reply are not directly encapsulated in an IP

datagram?

6. How flow control differs from congestion control in a network?

7. What are the ways DNS can be implemented?

8. Write the difference between local login and remote login.

9. In SMTP, if we send a one-line message between two users, how many lines of

commands and responses are exchanged?

10. What is meant by persistent HTTP connection?

PART B — (5 16 = 80 marks)

11. (a) Explain the functionalities of various layers in OSI model.

Or

(b) Discuss various switching and connecting devices.

Question Paper Code : BS2325

BS2325 2

12. (a) Explain, how the address resolution protocol (ARP) is used to

dynamically map a logical address to a physical address.

Or

(b) Discuss any two routing protocols with an example network scenario of

your choice.

13. (a) Explain various flow control and congestion control mechanisms adopted

in TCP.

Or

(b) Discuss various services provided by UDP.

14. (a) Discuss the use of DNS in the Internet and describe types of messages

used in it.

Or

(b) Draw the format of BOOTP and DHCP. Explain various fields.

15. (a) Explain how HTTP performs transaction between the client and server.

Or

(b) Explain in detail about the functionalities of SNMP. Specify the flow of

SNMP commands between the manager station and agent station.

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