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ALSO CALLED: Authentication, Authorization and Accounting, 3A, Access Authentication and Authorization, Administration (Security), Authentication, Authorization, and Accounting
DEFINITION: Authentication, authorization, and accounting (AAA) is a term for a framework for intelligently controlling access to computer resources, enforcing policies, auditing usage, and providing the information necessary to bill for services. These combined processes are considered important for effective network management and security.As the first process, authentication provides a way of identifying a  … 
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AAA DEFINITION (continued): …  user, typically by having the user enter a valid user name and valid password before access is granted. The process of authentication is based on each user having a unique set of criteria for gaining access. The AAA server compares a user's authentication credentials with other user credentials stored in a database. If the credentials match, the user is granted access to the network. If the credentials are at variance, authentication fails and network access is denied.Following authentication, a user must gain authorization for doing certain tasks. After logging into a system, for instance, the … 
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