Reg No.:

Max. Marks: 100

12

00000EC40712 190416:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

Seventh semester B.Tech examinations (S), September 2020

Course Code: EC407
Course Name: COMPUTER COMMUNICATION

PART A
Answer any two full questions, each carries 15 marks.

Compare the different physical topologies.

Explain TCP/IP protocol suite.

Describe the functions of all the layers of OSI model.
Describe the persistent methods in CSMA.

List out the functions of data link layer.

Explain the architecture of IEEE 802.11 with suitable diagram
Explain the Checksum method of error detection.

PART B

Answer any two full questions, each carries 15 marks.
Explain the different networking devices.
Draw the general format of ICMP messages. Explain error-reporting ICMP
Define routing table. Differentiate static and dynamic routing table.
Explain Dijkstra’s algorithm to find the shortest path, with a suitable example.
Explain Network Address Translation.
Explain the Routing table modification in Distance Vector Routing.

PART C
Answer any two full questions, each carries 20 marks.
Explain the protocol used for network management.

Describe WWW architecture.

Explain POP3.

What is Intrusion Detection System? Explain the types of IDS.

Explain the three-way handshaking connection establishment mechanism in
List out the congestion control categories.

Explain AH protocol.

Describe the four SSL protocols.

List out the services provided by IPSec.
HK

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Duration: 3 Hours

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