Computer Networks (3150710)
IMP Questions Chapterwise
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Chapter 1: Introduction to Computer Networks and Internet
1. Explain following terms: Processing Delay, Queuing Delay, Transmission Delay, Propagation Delay, Throughput and Loss. (May-15, Dec-15, May-16, June-17)
2. Draw the OSI reference model. Explain the functionality of each layer in brief. (May-15, Nov-16, Nov-17, May-18, Nov-18)
3. What are the five layers in the Internet protocol stack? What are the principal responsibilities of each of these layers? (Dec-15, May-16, Nov-18)
4. What is network topology? Explain different types of network topology. (May-16, June-17, Nov-18)
5. What is network? Explain in brief about LAN, MAN, WAN and WLAN. (May16, Nov-18)
6. Differentiate IP stack and OSI reference model. (Nov-16)
7. Explain the working of switching techniques. (Nov-18)
8. Explain connection oriented and connection less services. (May-16, Nov-18)
Chapter 2: Application Layer
1. Draw and explain client server network architecture. (May-15)
2. What are the Network Applications of application layer? Explain with example.
3. Define following terms: (Nov-17)
1. Socket
2. Process
4. What is HTTP? Differentiate its persistent and non-persistent types with request-response behaviour of HTTP. (Dec-15, Nov-16, Nov-17)
5. Explain the working of electronic mail protocols SMTP, IMAP and POP3 in brief with suitable diagram. (May-15)
6. Write short note on DNS. (May-15, Nov-16, June-17, Nov-17, May-18, Nov18)
7. Explain any two Application Layer Protocol. (Nov-17)
8. What is socket? Explain its importance at transport layer protocols. (Nov-17)
Chapter 3: Transport Layer
1. How UDP checksum value is calculated? Explain with suitable example. (May-16, May-18, Nov-18)
2. Discuss transport layer multiplexing and De-multiplexing concept. (Dec-15, June-17, Nov-17, May-18, Nov-18)
3. How many packets overhead while doing the data communication using TCP? Draw the TCP connection establishment and termination process with diagram. (May-15, June-17)
4. Discuss the principles of reliable data transfer. (May-15, Nov-16, June-17, May-18)
5. What are the issues of stop and wait protocol at transport layer? How selective repeat protocols resolve issues of stop and wait protocol? (May16, May-18)
6. How pipeline approach improves the overall sender utilization time? Explain Go-Back-N pipeline approach in transport layer. (May-15, May-18)
7. Explain the TCP Segment structure (TCP Header) and justify the importance of its field values. (May-15, May-16, Nov-17, Nov-18)
8. What is connection oriented and connectionless service? Explain each with example. (Nov-16, Nov-18)
9. Differentiate between Connection oriented and Connectionless services. (June-17, Nov-17)
10. Give differences between TCP and UDP. (June-17, Nov-17, May-18, Nov-18)
11. Give differences between Flow Control versus Congestion control. (Nov-17, May-18, Nov-18)
12. What do you mean by congestion and overflow? Explain the slow-start component of the TCP congestion-control algorithm. (May-15, Nov-18)
Chapter 4: Network Layer
1. 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. (May-15, Dec-15)
2. What is a routing algorithm? List major types of it. (Nov-16)
3. Explain Distance-Vector Routing algorithm. (May-15, Dec-15, May-16, June17, Nov-17, May-18, Nov-18)
4. Explain the Link-State (LS) routing algorithm. (May-15, Dec-15, May-17, May18, Nov-18)
5. Explain Distance-Vector Routing algorithm. (May-15, Dec-15, May-16, Jun17, Nov-17, May-18, Nov-18)
6. Explain the Link-State (LS) routing algorithm. (May-15, Dec-15, May-17, May18, Nov-18)
7. Compare distance vector routing and link state routing algorithm. (RIP vs OSPF) (June-17)
8. Differentiate broadcast and multicast with their functionalities. (Nov-16,June-17, May-18, Nov-18)
9. List the classes in classful addressing. (June-17)
10. What is IP address? What is Subnet? Explain different IP address Classes. (Nov-17, May-18)
11. Explain IPv4 datagram format and importance of each filed. (May-15, May16, Nov-16, June-17, Nov-17, Nov-18)
12. Compare IPv4 and IPv6. (Dec-15, May-16, Nov-17, Nov-18)
13. Write short note on Network Address Translation (NAT) protocol. (June 17, Nov-17, May-18)
Chapter 5: The Link Layer & Local Area Network
1. What is bit and byte stuffing? Explain with example. (Dec-15, Nov-17, May18)
2. Explain CRC with example. (May-16, Nov-16, June-17, Nov-17, May-18, Nov- 18)
3. Discuss the parity checks for error detection in data transfer. (Nov-16, June-17, Nov- 18)
4. Explain slotted ALOHA protocol. Compare pure ALOHA and slotted ALOHA protocol. (Dec-15, May-15, Nov-16, July-17, Nov-17, May-18)
5. Explain CSMA/CD protocol in detail. (Dec-15, June-17, Nov-17, May-18, Nov-18)
6. Draw & explain Ethernet Frame structure (Ethernet header). (Dec-15, May16, Nov-18)
7. Explain functionality of Repeater, HUB, Bridge, Switch, Router and Gateway. (June-17, Nov-17, Nov-18)