Which statement best describes the role of IP addresses?

Which statement best describes the role of IP addresses?

• A. IP addresses identify hardware on the local network.
• B. IP addresses encode data packets for encryption.
• C. IP addresses locate a device on the internet.
• D. IP addresses uniquely identify users' accounts.

Answer: (C)

IP addresses provide a way to locate and reach a device across networks. They mark the device’s position in the network so data packets know where to go. As a packet moves, routers read the destination IP address in the header and forward the packet toward the next hop that will bring it closer to that device, enabling communication across the Internet. This role is about routing and reachability, not encryption, and it identifies a network interface or device rather than a user’s account. Additionally, technologies like NAT can map many devices inside a local network to a single public IP, showing that the address describes network location rather than a fixed physical spot.

IP addresses provide a way to locate and reach a device across networks. They mark the device’s position in the network so data packets know where to go. As a packet moves, routers read the destination IP address in the header and forward the packet toward the next hop that will bring it closer to that device, enabling communication across the Internet. This role is about routing and reachability, not encryption, and it identifies a network interface or device rather than a user’s account. Additionally, technologies like NAT can map many devices inside a local network to a single public IP, showing that the address describes network location rather than a fixed physical spot.