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What is CRC and Checksum
CRC (Cyclic redudancy check)
CRC, is the most powerful of the redundancy checking methods, is based on binary division.
Checksum
Checksum is used by the higher layer protocols (TCP/IP) for error detection
Question 1: (a) Explain what is meant by circuit switching? Give its main shortcoming and explain its relevance in telephone systems. (b) Outline the differences betwee
What metrics are used by routing protocols to verify the best path?
Can you describe the concept of subnetting?
Q. Why it is essential to have layering in a network? Ans: A computer network is a very complicated system. It becomes very hard to implement as a single entity. The layered ap
Q. What is Transmission Media? - Actually situated below the physical layer - Directly controlled through the physical layer - Data should be converted into electromagnet
Can you tell how actually NAT works?
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
PING - Packet Internet Gopher A utility that shows connections to one or more remote hosts. The ping command uses the ICMP echo request and echo reply packets to verify whether
Tree interconnection network: In tree interconnection network, processors are organised in a complete binary tree pattern. Figure: Tree interconnection network
Single company or organization owns this. They are usually LAN technologies. There can be multiple LANs in a campus or building linked together. They are sometimes known Intranet.
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