Which statement is correct about network protocols?

Which statement is correct about network protocols?

  • They are only required for exchange of messages between devices on remote networks.
  • Network protocols define the type of hardware that is used and how it is mounted in racks.
  • They all function in the network access layer of TCP/IP.
  • They define how messages are exchanged between the source and the destination.
    Answers Explanation & Hints:

    Network protocols are implemented in hardware, or software, or both. They interact with each other within different layers of a protocol stack. Protocols have nothing to do with the installation of the network equipment. Network protocols are required to exchange information between source and destination devices in both local and remote networks.

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