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CCNA Routing and Switching Fundamentals
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The following commands were entered on a :
Router(config)# access-list 2 deny 172.16.5.24
Router(config)# access-list 2 permit any
The ACL is correctly applied to an interface. What can be concluded about the given set of commands?
AnswerClick to flip back
A
The wildcard mask 0.0.0.0 is assumed.
💡 Explanation:
When creating a standard access list without specifying a wildcard mask, IOS assumes the wildcard mask 0.0.0.0, which matches only the exact host address specified. This is a host-specific ACL. The wildcard mask must be explicitly stated to match a range of addresses. Option B is incorrect because the commands are valid. Options C and D are incorrect because only the specific host 172.16.5.24 is denied, not the entire network.