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Q. Explain Stop--and--Wait automatic repeat request?
1. Numbering frames prevents the retaining off duplicate frames.
2. Numbered acknowledgement are needed in case of delayed ACK and next frame lost.
What is Error Control ? Error control is both error detection and error correction. It allows the receiver to inform the sender of any frames lost or damaged in transmission an
Question: (a) Distinguish between UDP and TCP. (b) You have been asked to design and implement a chat application for a university. Which protocol could you used TCP or UDP
What is the difference between a straight-through and crossover cable? A straight-through cable is used to connect computers to a hub, switch, or router. A crossover cable is u
Explain Persistence timer? To deal with the zero-size windows What if a receiver advertises that the window size is 0 (by sending ACK) and this ACK is lost? - A
In reg-mem architecture, clock cycle is 10 ns wide. It is proposed that reg-reg architecture be used instead, that reduces the clock cycle by 2 ns. However, it requires an addition
What is EGP (Exterior Gateway Protocol)? It is the protocol the routers in neighboring autonomous systems use to recognize the set of networks that can be reached within or by
wan notes
What is NVT (Network Virtual Terminal) It is a set of rules explaining a very simple virtual terminal interaction. The NVT is used in the begin of a Telnet session.
Carrier Sense Multiple Access/Collision Avoidance a) Necessary since wireless LANs cannot implement CSMA/CD b) Collision detection requires increased bandwidth requirements
DEFINE
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