200-301 Question #1542: Real Exam Question with Answer & Explanation

Question

Which two statements distinguish authentication from accounting? (Choose two.)

Options

• AOnly authentication supports user-activity audits.
• BOnly authentication challenges users for their credentials and returns a response.
• COnly authentication validates "who you are."
• DOnly authentication records the duration of a user's connection.
• EOnly authentication provides supporting information for billing users.

Explanation

Authentication verifies a user's identity, while accounting tracks what actions the user performs after authentication.

Common mistakes.

• A. User activity audits are a core function of accounting, which logs what resources were accessed and when, not authentication.
• D. Recording the duration of a user's connection is an accounting function, as accounting tracks resource consumption and session details.
• E. Providing supporting information for billing users is a function of accounting, which monitors and records resource usage for financial or administrative purposes.

Concept tested. AAA concepts (Authentication vs. Accounting)

Reference. https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/sec_usr_aaa/configuration/xe-16/sec-usr-aaa-xe-16-book/sec-usr-aaa-intro.html

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