What command should be used to specify a wildcard mask in an ACL entry?

The command used to specify a wildcard mask in an Access Control List (ACL) entry is the one that allows you to directly define the wildcard mask associated with an IP address. In the context of ACLs, wildcard masks are used to determine which bits of an IP address should be checked against the traffic flows and which bits can be ignored.

In this framework, the ability to utilize a wildcard mask allows network administrators to create more flexible and nuanced rules for permitting or denying traffic. With the appropriate command, the administrator can configure an ACL to match specific hosts or networks based on their respective wildcard masks. This is critical for efficient network management, security configurations, and implementing policies that reflect the organization's needs.

The other choices may refer to concepts surrounding IP addressing or ACLs but do not specifically relate to the correct syntax or functionality needed to set wildcard masks in ACLs. Understanding how wildcard masks are constructed and applied is key for effective network policy enforcement.