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Problem:
(a) Application Layer protocols can be classified as connection-oriented or connectionless-oriented.
i. What do you understand by the term protocol? ii. Give an example of one connection-oriented application layer protocol and one connectionless-oriented application layer. iii. Describe how each above-mentioned protocol work by providing as much information about application messages, port numbers, etc...
(b) Describe essential security services and the mechanisms used to enforce those three services.
(c) Given the following received codeword C and the generator polynomial G. Determine if an error has taken place during transmission.
You should show your work and not reply merely Yes or No.
C: 110011001 G: x3 + 1
Financial Services Today financial services are totally depended on computer network. Application includes credit history searchers foreign exchange and investment service
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Can you define Network Layer?
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Q. Explain Stop--and--Wait automatic repeat request? 1. Numbering frames prevents the retaining off duplicate frames. 2. Numbered acknowledgement are needed in case of delay
explain the three classification of operation research
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