write short notes of the following (1) repeater (2) HUB?
Answers
Answer:
1. Repeater – A repeater operates at the physical layer. Its job is to regenerate the signal over the same network before the signal becomes too weak or corrupted so as to extend the length to which the signal can be transmitted over the same network
Answer:
(1) Repeater - A network device used to regenerate or replicate a signal. Repeaters are used in transmission systems to regenerate analog or digital signals distorted by transmission loss. ... In a data network, a repeater can relay messages between subnetworks that use different protocols or cable types.
(2) Hub - A hub is the connection point in a computer device where data from many directions converge and are then sent out in many directions to respective devices. A hub may also act as a switch by preventing specific data packets from proceeding to a destination.