Which network-layer protocols are IP, ICMP, and ARP?

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Multiple Choice

Which network-layer protocols are IP, ICMP, and ARP?

Explanation:
At the network layer in the IP suite, IP handles addressing and routing, ICMP provides diagnostic and error messages for IP, and ARP is used to map IPv4 addresses to local MAC addresses so IP packets can actually be delivered on a local network. That combination fits the network-layer role because it covers addressing, next-hop decisions, and address resolution needed for IP traffic. Transport-layer protocols like TCP and UDP do not operate at the network layer, which is why those options aren’t correct.

At the network layer in the IP suite, IP handles addressing and routing, ICMP provides diagnostic and error messages for IP, and ARP is used to map IPv4 addresses to local MAC addresses so IP packets can actually be delivered on a local network. That combination fits the network-layer role because it covers addressing, next-hop decisions, and address resolution needed for IP traffic. Transport-layer protocols like TCP and UDP do not operate at the network layer, which is why those options aren’t correct.

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