Which statement about the operation of a standard ACL is incorrect?

Which statement about the operation of a standard ACL is incorrect?

• The router extracts the source IPv4 address from the packet header.
• The router starts at the top of the ACL and compares the address to each ACE in sequential order.
• When a match is made, the ACE either permits or denies the packet, and any remaining ACEs are not analyzed.
• If there are no matching ACEs in the ACL, the packet is forwarded because there is an implicit permit ACE automatically applied to all ACLs.

Explanation: If there is no matching ACE in the ACL, the packet is discarded because of the implicit deny ACE automatically applied to all ACLs.

Exam with this question: 4.1.5 Check Your Understanding - Purpose of ACLs