COMPUTER NETWORKING

Detailed explanation-1: -Explanation: ‘The network layer at the source is responsible for creating a packet from the data coming from another’ protocol (such as a transport layer protocol or a routing protocol). The network layer is responsible for checking its routing table to find the routing information.

Detailed explanation-2: -The network layer is responsible for routing the data via the best physical path based on a range of factors including network characteristics, best available path, traffic controls, congestion of data packets, and priority of service, among others.

Detailed explanation-3: -The most significant protocol at layer 3 (also called the network layer) is the Internet Protocol, or IP. IP is the standard for routing packets across interconnected networks–hence, the name internet. It is an encapsulating protocol similar to the way Ethernet is an encapsulating protocol.

Detailed explanation-4: -Network layer protocols are, IP(Internet Protocol), ARP(Address Resolution Protocol), ICMP (Internet Control Message Protocol).