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Explain the different symmetric algorithms?
Initialization Imagine that all routers in our sample internetwork comes up at the same time. Each router sends a greeting packet to its neighbours to find out the sta
What do you mean by Beaconing and Auto-Reconfiguration? When a station does not receive a message from its nearest active upstream neighbor, it sends out a warning, otherwise c
Point out the drawbacks of Token Ring. Few of the drawbacks of Token Ring are: a. Token Ring is very costly. All topology components cost much more than other more popular s
SONET Frame Format SONET uses a basic transmission rate of STS -1 that is equivalent to 51.84 mbps. Higher level signals are integer multiples of the base rate. For exa
Disadvantage of VPNs The disadvantages of VPN are related to implementation troubleshooting trust and internet availability. a.Implementation can be time consuming: Im
What is the basic difference between latches and flip flops? Ans) flip flops have clock signal whereas latches dont require anyclock pulse..
Application Layer The application layer is where network applications and their application layer protocols reside. The internet application layer includes many protocols
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(i) Suppose that frames are 1250 bytes long including 25 bytes of overhead. Also assume that ACK frames are 25 bytes long. a) Calculate the efficiency of stop-and-wait ARQ in
popular digital encoding schemes ?
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