While reviewing Cisco IOS logs for suspicious network traffic, an administrator encounters a log message...

Option B is the best answer because the Cisco IOS mnemonic shown refers to a packet that matched an access-list entry and was logged . The key point in the question is not merely that a connection failed, but that a packet matched the defined ACL criteria and generated a log entry for monitoring and analysis. CHFI v11 explicitly includes Analyzing Cisco Switch, VPN, and DNS Server Logs , Analyzing Firewall, IDS, Honeypot, Router, and DHCP Logs , and broader network log analysis as core objectives.

In practical forensic terms, ACL logging helps investigators determine whether suspicious traffic was seen, what policy line it matched, and how that traffic fit into the larger incident timeline. The wording in option B captures that idea most accurately by emphasizing matching the access list criteria and being logged . Option A is too narrow because ACL logs can reflect permitted or denied traffic depending on the configured rule. Options C and D do not describe the meaning of the ACL log mnemonic itself. Therefore, under CHFI network log-analysis principles, B is the correct interpretation of the entry.