Question

Which of the following best describes how a switch functions?
a. It connects multiple cable segments or devices and forwards frames to the appropriate segment.
b. It connects multiple segments of different architectures. It translates frames and broadcasts them to all of its ports.
c. It connects multiple cable segments or devices and broadcasts frames to all of its ports.
d. It connects multiple segments of different architectures. It translates frames and forwards them to the appropriate segment.

Answer 1

The switch connects several cable segments or devices together and forwards frames to the desired segment or device. Thus, the correct answer pertains to (a) i.e. ‘It connects multiple cable segments/devices and forwards data frames to the appropriate device’.

The switch is a data link layer network device. The main function of the switch device is to connect multiple devices on the network together in order to enable data transmission between them. The switch forwards data frames selectively to the appropriate device. Before forwarding data frames to the correct destination device, the switch performs error checking. In case errors are found in any data frames, the switch does not forward those data frames to the destination device and discards them.

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