CodeHS The Internet Practice Test

Which term refers to how devices on a network locate other devices or services?

Addressing DNS Routing Encryption

Correct Answer:

Addressing

Explanation:

Addressing is how devices on a network are identified so data can be sent to the right place. Each device gets a unique address, like an IP address for Internet communication or a MAC address on a local network. When one device wants to reach another, the data packet includes the destination’s address, and routers use that address to forward the packet toward the correct device or service. DNS is related but focuses on translating human-friendly names into addresses to reach a service, rather than defining the basic way devices locate each other. Routing uses those addresses to move data across networks, and encryption simply protects the content.

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