Which statement describes a characteristic of the network layer in the OSI model?

Which statement describes a characteristic of the network layer in the OSI model?

• It manages the data transport between the processes running on each host.
• In the encapsulation process, it adds source and destination port numbers to the IP header.
• When a packet arrives at the destination host, its IP header is checked by the network layer to determine where the packet has to be routed.
• Its protocols specify the packet structure and processing used to carry the data from one host to another.

Explanation: The transport layer manages the data transport between the processes that are running on each host. In the encapsulation process, the network layer adds the IP header information, such as the IP address of the source (sending) and destination (receiving) hosts. When a packet arrives at the network layer of the destination host, the host checks the IP header of the packet to verify if the destination IP address within the header matches its own IP address.

Exam with this question: Networking Devices and Initial Configuration Module 5.4.3 Network Layer Quiz