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Network Layer & IP Addressing – Computer Networks interview questions

Network Layer & IP Addressing interview questions for placements and exams.

Subject: Computer NetworksDifficulty: Mixed13 questions in this set

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Computer Networks – Network Layer & IP Addressing questions (13)

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1. Compare IPv4 and IPv6 in terms of address structure and benefits.

Difficulty: MediumType: SubjectiveTopic: ip addressing

IPv4 uses 32-bit addresses, supporting about 4.3 billion unique addresses, while IPv6 uses 128 bits, allowing practically unlimited addressing. IPv6 simplifies routing and removes the need for NAT, includes built-in IPsec support, and provides auto-configuration features. However, IPv4 remains widely used due to compatibility and legacy systems. In interviews, mention both scalability and transition challenges when comparing them.

2. What does CIDR stand for and what problem does it solve?

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Network Layer & IP Addressing – Computer Networks interview questions

Set overview

Computer Networks – Network Layer & IP Addressing questions (13)

1. Compare IPv4 and IPv6 in terms of address structure and benefits.

2. What does CIDR stand for and what problem does it solve?

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3. Which IP address class provides the largest number of hosts per network?

4. What is the role of a default gateway in IP networking?

5. What is the purpose of ICMP in IP networking?

6. What does the Address Resolution Protocol (ARP) do?

7. What is the main function of the Network Layer in the OSI model?

8. Explain the difference between static and dynamic routing.

9. What is an IP address used for in networking?

10. What is the function of the Time-to-Live (TTL) field in an IP header?

11. Given the IP address 192.168.10.0/26, calculate the number of subnets, hosts per subnet, and the valid range of the first subnet.

12. Why is subnetting used in IP networks?

13. When does packet fragmentation occur in IP networks?

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Network Layer & IP Addressing – Computer Networks interview questions

Set overview

1. Compare IPv4 and IPv6 in terms of address structure and benefits.

2. What does CIDR stand for and what problem does it solve?

Continue your preparation

3. Which IP address class provides the largest number of hosts per network?

4. What is the role of a default gateway in IP networking?

5. What is the purpose of ICMP in IP networking?

6. What does the Address Resolution Protocol (ARP) do?

7. What is the main function of the Network Layer in the OSI model?

8. Explain the difference between static and dynamic routing.

9. What is an IP address used for in networking?

10. What is the function of the Time-to-Live (TTL) field in an IP header?

11. Given the IP address 192.168.10.0/26, calculate the number of subnets, hosts per subnet, and the valid range of the first subnet.

12. Why is subnetting used in IP networks?

13. When does packet fragmentation occur in IP networks?

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