Implementing Cisco IP Routing (CCNP ROUTE, legacy) — Question 7

Which access list used to filter upper layer protocol?

Answer options

• A. Extended acl
• B. Standart acl
• C. Reflexive acl
• D. Time based acl
• E. Dynamic acl A

Correct answer:

Explanation

The correct answer is A. Extended ACLs are designed to filter traffic based on both source and destination IP addresses as well as upper layer protocols. The other options, such as Standard ACLs, only filter based on source IP addresses, while Reflexive, Time-based, and Dynamic ACLs serve different specific functions that do not primarily focus on upper layer protocol filtering.