A network engineer must block access for all computers on VLAN 20 to the web server via HTTP All other computers must be able to access the web server Which configuration when applied to switch A accomplishes this task?
Use B for this item. The ACL must deny HTTP traffic from VLAN 20 to the web server while permitting other traffic. Extended ACLs match source, destination, and TCP port, so they are appropriate for blocking only HTTP from one VLAN. In Cisco CCNA 200-301 v1.1, Security Fundamentals questions frequently test the practical boundary between similar features: what the feature does, where it is configured, and what problem it is meant to solve. A broader deny or wrong placement would block more hosts than required or fail to match the traffic before it reaches the server. A clean way to validate the answer is to map the wording of the scenario to the actual device function. If the feature supplies addressing, forwarding, authentication, trunking, route selection, or controller communication, the answer must match that function exactly rather than a nearby protocol name.
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