What command configures a standard numbered ACL entry to permit or deny all source IPs?

The command that configures a standard numbered ACL entry to permit or deny all source IP addresses is correctly identified as "access-list number {deny | permit} any."

In this command, "number" refers to the specific number assigned to the ACL, ranging from 1 to 099 or 1300 to 1999 for standard ACLs. The term "any" is a wildcard that matches any source IP address, allowing the ACL to apply to all traffic that matches the entry. Using this command, an administrator can effectively control traffic by explicitly allowing or denying all incoming connections from any source, which can be crucial for security and traffic management.

The other options represent related but different functionalities. The command concerning "ip access-list standard acl-name" is used for creating named access lists rather than standard numbered ones. The option with "deny | permit ip wildcard-mask" does not specifically configure a standard ACL to permit or deny all source IPs; instead, it requires defining a specific IP range through a wildcard mask. Lastly, the command "show access-lists" merely displays the ACLs currently configured on the router but does not alter or create any ACL entries.