Which one of the following is not a function of network layer

General
1

which one of the following is not a function of network layer

2

Which one of the following is not a function of the network layer?

Answer:
The network layer in the OSI model is responsible for managing the logical addressing and routing of data packets between different networks. It provides the necessary protocols and services to ensure that data is delivered from the source host to the destination host across multiple networks.

The network layer performs several important functions, including:

  1. Logical Addressing: The network layer assigns unique logical addresses to devices on the network. These addresses, such as IP addresses, are used to identify the source and destination of data packets.

  2. Routing: The network layer determines the optimal path for data packets to reach their destination. It uses routing protocols to make routing decisions based on factors like network congestion, cost, and available resources.

  3. Packet Forwarding: The network layer is responsible for forwarding data packets from one network node to another along the chosen route. It encapsulates data from the transport layer into packets, adds header information (including source and destination addresses), and passes them to the appropriate next hop on the network.

  4. Fragmentation and Reassembly: In some cases, data packets may be too large to be transmitted in their entirety. The network layer can break down these packets into smaller fragments and reassemble them at the destination.

Given these functions, it is important to note that the primary purpose of the network layer is to facilitate the efficient and reliable transmission of data across multiple networks. However, the network layer does not directly deal with functions such as error detection and correction (which are handled by the data link layer) or the delivery of data to specific applications (which is the responsibility of the transport layer). Therefore, the function of “error detection and correction” is not a function of the network layer.