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Q. Explain about Congestion control?
Congestion control
Open-loop congestion control
- prevent congestion before it happens
- Retransmission timers should optimize efficiency & prevent congestion
- Selective Repeat window is superior than Go-back-N
- if not each packet is ACKed the sender may slow down
Define the analog audio and video conferencing systems When analog audio and video conferencing systems were used, the procurement and installation was complex, less reliable a
Q. Error Detection-General? Sender transmits every data unit twice Receiver performs bit-by-bit comparison between those two versions of data. Any mismatch would
Error Detecting Code - Parity bit: The general idea for achieving error detection and correction is to add some redundancy (i.e., some extra data) to a message, which receiver
What is the IEEE specification for Spanning Tree Protocol Ans) IEEE 8021.d Spanning Tree Protocol (STP) was developed to stop routing loops in a network. If a router, switch, or
Network Devices a.Hub b.Repeater c.Bridge d.Gateway e.Switch f.Router Connecting devices can classified into networking and internetworking devices when
TWO DIFFERENT KINDS OF TOPOLOGIES: LOGICAL TOPOLOGY: It is described by the specific network technology. PHYSICL TOPOLOGY: It relays on the wiring scheme. NE
What is Stop-and-Wait Automatic Repeat Request? Error correction in Stop-and-Wait ARQ is implemented by keeping a copy of the sent frame and retransmitting of the frame when th
bus topology disadvantage?
Many instance of IGRP run on one physical router
It's a Hybrid device that joins the features of both bridges and routers.
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