Cisco Certified Network Associate (CCNA) Practice Exam

What does the command 'SW1#show access-list' display?

1. Current MAC address configurations

2. Current NAT statistics

3. Current IP address allocations

4. Current access list configurations

The correct answer is: Current access list configurations

The command 'show access-list' is used in Cisco devices to display the current access list configurations. Access control lists (ACLs) are a critical aspect of network security, enabling network administrators to control the flow of traffic into and out of a network based on defined rules. When you execute this command, it provides details about each access list, such as the access list number, the rules (permit or deny statements) that have been configured, and the number of times each rule has been matched. This visibility allows network administrators to audit and troubleshoot access lists effectively, ensuring that the access control measures in place align with security policies. While the other options mention aspects of network configuration or status, they are unrelated to the specific functionality of the 'show access-list' command, which focuses solely on the configurations and details of access lists.