Which statement accurately describes the role of IP in the Internet Protocol Suite?

Which statement accurately describes the role of IP in the Internet Protocol Suite?

• A. IP handles application-layer encryption.
• B. IP guarantees reliable delivery of data.
• C. IP provides addressing and routing of packets.
• D. IP ensures secure authentication.

Answer: (C)

IP is the part of the Internet Protocol Suite that gives each packet a destination and finds a path to reach it. When a packet is sent, it carries an IP address in its header, and routers along the way read that address to decide which next hop should forward the packet toward the final device. This routing across multiple networks is what lets data travel from one user to another, even if they’re not on the same local network. IP itself doesn’t guarantee delivery or order, and it doesn’t handle encryption or authentication by itself—those responsibilities belong to other layers and protocols (like TCP for reliability, TLS/SSL or IPsec for security). In short, IP’s main job is addressing and routing.

IP is the part of the Internet Protocol Suite that gives each packet a destination and finds a path to reach it. When a packet is sent, it carries an IP address in its header, and routers along the way read that address to decide which next hop should forward the packet toward the final device. This routing across multiple networks is what lets data travel from one user to another, even if they’re not on the same local network. IP itself doesn’t guarantee delivery or order, and it doesn’t handle encryption or authentication by itself—those responsibilities belong to other layers and protocols (like TCP for reliability, TLS/SSL or IPsec for security). In short, IP’s main job is addressing and routing.