Which statement about the protocol in a network layer is true?
2025
Which statement about the protocol in a network layer is true?
- A.
It defines hardware implementation details.
- B.
It allows layers to bypass adjacent layers.
- C.
It standardizes user application interfaces.
- D.
It is a set of rules governing peer-layer communication.
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Correct answer: D
In computer networking, a protocol is a set of rules and conventions that governs communication between corresponding (peer) layers on different devices in a network. Protocols define how data is formatted, transmitted, received, and interpreted.
For example, protocols such as TCP/IP define communication rules between systems.