Multiple choice

Refer to the exhibit. The network administrator has just added VLAN 50 to Switch1 and Switch2. Hosts A, B, C, and D are correctly configured with IP addresses in the subnet range for VLAN 50. Host A can communicate with host B, but cannot communicate with host C or host D. What is the cause of this problem?

  1. There is a native VLAN mismatch.

  2. The Fa0/11 interface of Switch1 is not configured as a trunk.

  3. The link between Switch1 and Switch2 is up but not trunked.

  4. VLAN 50 is not allowed on the trunk link between Switch1 and Switch2.

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The problem occurs because VLAN 50 is not permitted to traverse the trunk link between Switch1 and Switch2. Host A and B can communicate because they're on the same switch. For Host A to reach Host C or D (on Switch2), VLAN 50 must be added to the allowed VLAN list on the trunk port using the switchport trunk allowed vlan command.