Computer Network

Computer Network 

2180713

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Important Question for GTU Exam

Unit 1. Introduction

1. Define computer network & List out applications of Computer Network

2. Define LAN, MAN, WAN Define connection-oriented and connectionless Protocols. 

3. Draw OSI Reference Model and explain it in detail.

4. Compare OSI & TCP-IP reference model. 

5. Compare circuit and packet switching.

6. Discover Different types of Nodal Delay in Detail

Unit 2. The Application Layer

1. Define persistent and Non persistent HTTP in detail.

2. Describe need of conditional GET in HTTP Messages.

3. Explain SMTP Protocol. Give comparison of SMTP, POP3 and IMAP.

4. Classify different types DNS Services with proper example.

5. Prepare a short note on DNS Database.

6. Discuss the concept of Cookies and its components with suitable example.

7. Discuss the high-level view of Internet e-mail system and its major components

Unit 3. The Transport Layer

1. Describe rdt 2.0, rdt2.1, rdt2.2 and rdt3.0.

2. Discuss Stop and wait protocol, GBN Protocol, SR Protocol.

3. Discover TCP Connection Management.

4. Explain TCP Congestion control techniques.

5. Draw and explain Router architecture in detail.

6. Explain Virtual Circuit Network and Datagram Network.

7. Draw and Explain TCP Header.

Unit 4. The Network Layer

1. Define packet switching and circuit switching.

2. Define Router & Routing Table.

3. Compare connection oriented and connectionless service with example.

4. Explain Distance Vector Routing algorithm.

5. Define Link State Routing. & show the process of generating Link State Packets.

6. Compare IPv4 and IPv6.

7. Define ARP and justify why ARP Query sent within broadcast frame and ARP

Response sent within a frame with specific destination MAC Address.

8. What is the main difference between forwarding and routing? Explain at least two

Forwarding techniques used by the router to switching to packets from input port to

Output port of the router.

Unit 5. The Link layer and Local area network

1. Describe slotted ALOHA channel access techniques.

2. Compare various pure ALOHA and Slotted ALOHA.

3. What is Ethernet? Classify Types of Ethernet In detail.

4. Define framing and show how framing works.

5. Explain Ethernet frame structure.

6. Explain bit stuffing and byte stuffing.

7. Use CRC with general polynomial xP3 P+ 1 to encode the value: 10011101. If

3PrdP bit from left is garbled in transmission, what will be remainder at Receiver side?

8. What is CSMA? Discover types of CSMA.