Which statement is correct about network protocols? Select one: a. They define how messages are exchanged between the sources and the destination b. They all function in the network access layer of TCP/IP c. Network protocols define the type of hardware that is used and how it is mounted in racks d. They are only required for exchange of message between devices on remote network

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Linux

An operating system (OS) is the software which manages hardware and resources, like CPU, storage and memory. The OS bridges the applications and hardware and makes the connections between all of your software and the hardware resources.