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Questions from the topic - 4. Network Layer (9 hours) - Computer Networks
  1. What is the contribution of subnetting in IP address management? Show the importance in this case. Banijya bank need to allocate 15 IPs in the HR department, 30 in finance department, 24 in customer care unit and 25 in ATM machines. If you have one network of class C range public IP address. Describe how you will manage it. - 2069 Chaitra
  2. Why is routing protocol necessary? Explain the working process of Routing Information Protocol (RIP) with example - 2069 Chaitra
  3. Differentiate:
    a) Distance vector and link state routing algorithm.
    b) Circuit switching and packet switching - 2068 Chaitra
  4. Suppose there are 4 departments A, B, C and D. The department A has 23 hosts, B has 16, C has 28 and D has 13 hosts. You are given a networks 202.70.64.0/24. Perform subnetting in such a way that the IP address wastage in each department are minimum and also find out the subnet mask, network address, broadcast, and unable host range in each department. - 2068 Chaitra
  5. Write short notes on:
    a) Network Security
    b) Router and Gateway - 2068 Chaitra
  6. What is a logical address? You are given the IP address block 200.10.80.32/25. If there are five departments which require 5, 40, 28, 12, 6 hosts respectively. Design the subnet. - 2068 Baisakh
  7. Why routing is essential in computer networking? Compare working of distant vector routing algorithm with link state routing algorithm. - 2067 Ashadh
  8. If you need to assign IP addresses to all computers of question no 2 making each department as a network. What will be your approach? Explain with IP address ranges you are suggesting. - 2067 Ashadh
  9. What are the factors that cause congestion within WAN? Propose your best traffic shaping approach to manage congestion in packet switched network. - 2066 Bhadra
  10. Write short notes on (any two) :
    a) TCP Sliding Window Protocol
    b) Secret Key Algorithm: DES
    c) ISDN Signalling and ATM AAl
    d) ICMP Message Types - 2066 Bhadra
  11. Explain the working principle of different types of network devices Repeater, HUB, Bridge, Switch and Router. - 2065 Shrawan
  12. Suppose we have 4 departments A, B, C and D the department A has 23 hosts, B has 16, C has 28 and D has 13 hosts. You are given a network 202.70.91.0/24. Perform the subnetting in such a way that the IP address wastage in each department is minimum and find out the subnet mask, network address, broadcast and usable host range in each department. - 2065 Shrawan
  13. Explain class A and class B addresses. What is the purpose of subnetting? - 2063 Ashwin
  14. What is the purpose of ICMP? List down and explain query ICMP messages. - 2063 Ashwin
  15. Why do you need adaptive routing? Compare it with flooding. - 2063 Baisakh
  16. Write diagram of IP header and explain the purpose of Fragment Offset, Time to Live and Protocol fields. - 2063 Baisakh
  17. What do you mean by IP source routing? What is it's advantage? - 2063 Baisakh