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Summary SMESTER TEST SECTION A POSSIBLE QUESTIONS
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SMESTER TEST SECTION A POSSIBLE QUESTIONS
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SEMESTER TEST 2Possible section A questions
peer-to-peer network**
Difficult to manage because management is decentralized, each
user is in charge of his own access policies.
Allows computers to act as both clients and servers during the same
communication.
Allows users to directly share specified file types across peer-to-
peer or client/server networks.
Application Layer**
Closest to the end user.
Helps exchange data between programs running on the source and
destination hosts.
Common application layer protocols include HTTP, FTP, TFTP, DNS.
Protocols used for process-to-process communications.
TCP/IP application layer **
Performs the functions of the upper three layers of the OSI model.
Protocols implemented on the source and destination host must be
compatible to allow communication.
Protocols must be implemented in both the source and destination
devices.
Specify the format and control information necessary for common
Internet functions.
Presentation and Session Layer**
Format data, compress and encrypt data.
Common graphic image formats are GIF, JPEG and PNG.
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