Refer to the exhibit. A technician has configured the FastEthernet 0/1 interface on Sw11 as an access link in VLAN 1. Based on the output from the show vlan brief command issued on Sw12, what will be

Question

Options

• AOnly the hosts in VLAN 1 on the two switches will be able to communicate with each other.
• BThe hosts in all VLANs on the two switches will be able to communicate with each other.
• COnly the hosts in VLAN 10 and VLAN 15 on the two switches will be able to communicate with each other.
• DHosts will not be able to communicate between the two switches.

• A
  14% (4)
• B
  7% (2)
• C
  24% (7)
• D
  55% (16)

Explanation

The inter-switch link between Sw11 and Sw12 was previously functioning as a trunk port, carrying traffic for all VLANs. When the technician reconfigures Sw11's FastEthernet 0/1 as an access port in VLAN 1, it can no longer carry 802.1Q-tagged frames for multiple VLANs. Since Sw12's side of the link is still configured as a trunk (as implied by its show vlan brief output showing multiple VLANs), there is now a mode mismatch between the two ends of the link. This mismatch causes the trunk negotiation to fail entirely, breaking all inter-switch communication. Hosts on neither VLAN 1 nor any other VLAN can communicate across the link, making D correct.

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