Exam 350-101 Topic 3 Question 18 Discussion

Actual exam question for Cisco's 350-101 exam
Question #: 18
Topic #: 3

A deployment requires that several APs be connected to edge switches, and each AP must support management and guest Wi-Fi traffic. The APs tag guest traffic separately from management, and the organization expects to add more VLANs for IoT and voice soon, so the configuration must support scalability. The security team requires that guest traffic never mix with internal resources. Which port configuration must be used for the switch interfaces that connect to the APs?

A. Configure the central Layer 3 switch port as an access VLAN port that allows the management VLAN only. B. Implement switch port access with the native VLAN for guest traffic and trunk with the management VLAN. C. Set a trunk port with the management VLAN as the native VLAN, and allow only management and user VLANs. D. Make the port an access port on the management VLAN because all traffic is tunneled back to the WLC.

Suggested Answer: C Vote an answer

The switch interfaces connected to the APs must be configured as 802.1Q trunk ports. The requirement states that AP management and guest Wi-Fi traffic must remain separate, and additional VLANs for IoT and voice are expected. An access port supports only one VLAN, so it cannot scale for multiple locally tagged client VLANs. Cisco's Catalyst AP guidance states that when multiple VLANs are used for client traffic, the AP switch port should trunk the VLANs, and management traffic is untagged; when a management VLAN is used, it should be configured as the native VLAN on the switch port. Cisco's Catalyst 9800 FlexConnect documentation also shows the AP connected to a trunk port with a native VLAN for AP IP connectivity and a separate VLAN for locally switched client traffic.
Option C is therefore correct: configure a trunk, set the AP management VLAN as native, and restrict the allowed VLAN list to only required management and client VLANs such as guest, IoT, and voice. This supports segmentation and prevents unnecessary internal VLAN exposure. Reference topics:AP switch-port design, 802.1Q trunks, native VLANs, client VLAN tagging, FlexConnect/local switching, and guest traffic segmentation.

by Colbert at Jun 24, 2026, 05:41 AM

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