COMPUTER NETWORKING

NETWORK LAYER

INTRODUCTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Network layer provides ____ delivery
A
Host to Host
B
END to END
C
HOST TO END
D
END TO HOST
Explanation: 

Detailed explanation-1: -Network Layer is the third layer of the OSI Model. It’s responsible for source-to-destination or host-to-host delivery of packets across multiple networks. This layer takes the data from the transport layer, adds its header, and forwards it to the data link layer.

Detailed explanation-2: -Network layer: Handles the routing and sending of data between different networks. The most important protocols at this layer are IP and ICMP.

Detailed explanation-3: -The network layer is responsible for delivery of datagrams between two hosts. This is called host-to-host delivery. Communication on the Internet is not defined as the exchange of data between two nodes or between two hosts. Real communication takes place between two processes.

Detailed explanation-4: -The data link layer is responsible for the node-to-node delivery of the message. The main function of this layer is to make sure data transfer is error-free from one node to another, over the physical layer. Hence the correct answer is Data Link Layer.

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