BCA Semester 5 – Computer Networking – Unit 4: The Network Layer (8Hrs)

Question 1

Define HDLC. Explain the HDLC frame formats.

Marks: 5

Year: 2020 Final TU

1. HDLC (High-Level Data Link Control) Definition: HDLC is a bit-oriented, synchronous data link layer protocol used for reliable communication over point-to-point and multipoint links. Key Points

Question 2

Define IP Address. Specify IPv4 address classes with their address ranges.

Marks: 5

Year: 2020 Final TU

1. IP Address Definition: An IP (Internet Protocol) address is a unique numerical identifier assigned to each device on a network to enable communication between devices over the Internet or other n

Question 3

Define Subnetting. Suppose you are given network address: 192.168.10.0 and subnet mask 255.255.255.240 then calculate total number of subnets and number of hosts per subnet.

Marks: 5

Year: 2020 Final TU

1. Subnetting Definition: Subnetting is the process of dividing a larger network into smaller, manageable subnetworks (subnets) to improve network efficiency, security, and management. Key Points:

Question 4

Explain the IPv4 Header format in detail.

Marks: 10

Year: 2020 Final TU

1. IPv4 Header Definition: The IPv4 header is a fixed-size (20 bytes minimum) data structure that contains control information needed to deliver a packet from source to destination. Key Points:

Question 5

What do you mean by IP datagram fragmentation?

Marks: 5

Year: 2022 Final TU

1. Definition IP datagram fragmentation is the process of breaking a large IP packet (datagram) into smaller fragments so that it can pass through a network with a smaller Maximum Transmission Unit (M

Question 6

Explain in detail about the structure of IPv6 address. Differentiate between IPv4 and IPv6 address.

Marks: 5

Year: 2022 Final TU

1. IPv6 Address Definition: IPv6 (Internet Protocol version 6) is the next-generation IP addressing scheme designed to overcome IPv4 limitations, primarily address exhaustion. - Uses 128-bit addre

Question 7

Classify and calculate the total number of Networks and Hosts per network in IPV4.

Marks: 10

Year: 2021 Final TU

1. IPv4 Address Classes IPv4 addresses are 32-bit addresses divided into five classes (A to E) based on the first octet. Classes A, B, and C are used for unicast addressing. | Class | First Octet Rang

Question 8

Explain the IPV4 Header format in detail.

Marks: 10

Year: 2021 Final TU

1. IPv4 Header Definition: The IPv4 header is a control structure attached to each IP packet that provides information necessary for routing and delivery across networks. - Minimum size: 20 bytes

Question 9

What is switching? Describe the types of switching with their advantages and disadvantages.

Marks: 10

Year: 2021 Final TU

1. Switching Definition: Switching is the process of forwarding data from the source to the destination through a network using a specific path or mechanism. - Provides efficient data transfer in

Question 10

a) Differentiate between static and dynamic routing with suitable example. b) Define Subnetting. Calculate total number of subnets and hosts per subnet for Network Address 192.168.20.0 and subnet mask

Marks: 10

Year: 2024 Final TU

a) Static vs Dynamic Routing | Feature | Static Routing | Dynamic Routing | |----------------------|------------------

Question 11

Define switching. Explain the types of switching.

Marks: 5

Year: 2024 Final TU

1. Switching Definition: Switching is the process of forwarding data from a source to a destination through a network using a specific path or mechanism. - Ensures efficient use of network resourc

Question 12

Define IP Address. Explain the classes of IPv4.

Marks: 5

Year: 2024 Final TU

1. IP Address Definition: An IP (Internet Protocol) address is a unique numerical identifier assigned to each device connected to a network that uses the Internet Protocol for communication. - Ena