Subject is DATA Communication and computer networking

a. If (KUST is universty) has installed new computer network at (Hangu Campus is branch of KUST UNIVERSITY) then first which factors must be able to meet a certain number of criteria for smoothing running and security. Write note of each factor. b. Suppose you have planned to build a computer network with more than 100 computers for a business then what network model will be the best option and why? (either it can be peer to peer network or client-server based network) a. Which layer of OSI model is responsible for delivery of the entire message from the source host to destination host? Also write short on each of the protocol used at this layer. b. Which layers of OSI model are responsible for attaching IP address of the network to data packet and MAC address of the host to data packet? Does it possible that sending data packet can be reached to the destination host without the MAC address of that host? If your answer is Yes then explain how and if your answer is No then why? a. Differentiate between multiple bit error and burst error. Explain you answer with the help of example for each error type. b. The checksum is calculated at which layer of OSI model and why it is used? Also show the checksum calculation process at the sender end and the verification process at the receiver end for given data 11001010111100111000111000111010111 by dividing this data into 5 segments of 7 bits.

ANSWER the question with the help of the example and explain each and every point.