Refer to the exhibit. All workstations are configured correctly in VLAN 20. Workstations that are connected to switch SW1 are not able to send traffic to workstations on SW2. What could be done to remedy the problem

Allow VLAN 20 on the trunk link.

Explanation:

Enable DTP on both ends of the trunk by allowing VLAN20 on the trunk link.

From curriculum topic: 3.2.4

To Enable DTP on both switches is simply allowing the negotiation of trunking. The "Negotiation of Trunking" line in the graphic is what shows that DTP is already enabled. The graphic also shows how the native VLAN is 1, and the default VLAN for any Cisco switch is 1. The graphic shows the PCs are to be in VLAN 20.

This will remedy the problem.

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