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Layer 5 - Session Layer
The session layer establishes,
manages, and terminates sessions between applications. This includes
starting, stopping, and re-synchronizing two computers that are having
a "rap session". The session layer coordinates applications as they
interact on two communicating hosts. Data communications travel on
packet-switched networks, not like telephone calls that travel on circuit-switched
networks. Communication between two computers involves many mini-conversations,
thus ensuring that the two computers can communicate effectively. One
requirement of these mini-conversations is that each host plays dual
roles: requesting service - like a client; and, replying with service
- like a server. Determining which role they are playing at any given
moment is called dialogue control.
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CertiGuide to A+ (A+ 4 Real) (http://www.CertiGuide.com/apfr/) on CertiGuide.com
Version 1.0 - Version Date: March 29, 2005
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