CCNA Routing and Switching (legacy) — Question 14

A network engineer wants to allow a temporary entry for a remote user with a specific username and password so that the user can access the entire network over the internet. Which ACL can be used?

Answer options

• A. reflexive
• B. extended
• C. standard
• D. dynamic

Correct answer: A

Explanation

The correct answer is A, reflexive ACLs, which allow temporary access and track the sessions initiated by the user. Extended ACLs (B) provide more granular control but do not facilitate temporary entries as effectively. Standard ACLs (C) can only filter by source address and lack the capability for session tracking, while dynamic ACLs (D) are mainly for temporary access but are not as straightforward for this specific case.