Crucial Exams

CompTIA Server+ SK0-005 Practice Question

While onboarding a new virtualization host, a systems administrator bonds two 10 GbE interfaces with LACP and enables 802.1Q tagging so the server can carry multiple VLANs. The host's management interface on VLAN 10 is reachable from the network, but virtual machines on VLAN 30 can only talk to one another locally and cannot ping the gateway that resides on the access-layer switch. Other servers connected to the same distribution switches have full connectivity on VLAN 30. After verifying that the NIC team and the vSwitch on the host are tagging frames for both VLANs, which switch-side configuration error would most likely cause this symptom?

  • BPDU Guard is enabled on the switch interface, causing Spanning Tree to restrict VLAN 30 traffic.

  • The router sub-interface for VLAN 30 is configured with a smaller MTU than the switch and server.

  • The port-channel connected to the host is set to access mode in VLAN 10 instead of a trunk that permits VLAN 30.

  • LACP fast-timer negotiation is disabled on the switch, so the bundle reverts to individual links.

CompTIA Server+ SK0-005
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