Cisco Certified Network Associate (CCNA) Practice Exam

What is the standard ACL number range?

1. 100 - 199

2. 1 - 99, 1300 - 1999

3. 200 - 299

4. 300 - 399

The correct answer is: 1 - 99, 1300 - 1999

The range for standard Access Control Lists (ACLs) encompasses both the traditional and extended options. Standard ACLs can be designated by numbers from 1 to 99 as the traditional range, and they can also be identified by the expanded range from 1300 to 1999 in the Cisco IOS. This classification allows network administrators to create simple rules that filter traffic based on the source IP address. It's important to note that within this context, standard ACLs only check the source address of the packets and do not consider port numbers, which differentiates them from extended ACLs. Extended ACLs utilize a different numbering scheme, incorporating ranges such as 100 to 199, while numbering between 200 to 299 is allocated for other types of ACLs. This comprehensive understanding of the number ranges enables network engineers to efficiently implement the correct type of ACL for their specific network requirements and maintain organized and effective filtering of network traffic.