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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 receivers can use to check consistency of the delivered message, and to recover data determined to be erroneous. An error-detection scheme may be combined with a system for retransmissions of erroneous data
A parity bit is a bit that is added to a group of source bits to ensure that the number of set bits (i.e., bits with value 1) in the outcome is even or odd. It is a very simple scheme that can be used to detect single error in the output.
Fig. Transmit data using a parity bit
By using this command Router(config)# no cdp run we can disable CDP on the entire Router
What is LTE ?
Q. Network performance measured by delay and throughput ? delay versus load Delay is composed of? Throughput v/s network load
Explain Client/Server Networking Model. A networking model where one or more powerful computers (servers) give the dissimilar network services and all other user's computers (
The Physical layer deals with the definite physical medium and the method of transporting 1s and 0s.
Q. What are the benefits of layered network? Ans: Basic benefits of layered network are given below: - Complex systems will be broken down into understandable subsystems.
Large data packets result in fewer load because a smaller part of the packet is used for header information. Optimum networks use 4kB data packets or larger. Large data packets
Describe IP datagram fragmentation and MTU
Q. What is data link of osi model? - The data link layer offers access to the networking media and physical transmission across the media and this enables the data to locate it
Calculate data bandwidth requirements from and to each site.
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