Refer to the exhibit.
Exhibit 1.

Exhibit 2.

Which devices can communicate with each other at Layer 2?
Refer to the exhibit.
Exhibit 1.
Exhibit 2.
Which devices can communicate with each other at Layer 2?
Based on the VLAN configuration shown in the exhibits, Devices 1 and 4 are part of VLAN 2, and Devices 2 and 3 are part of VLAN 3. This means that devices within the same VLAN can communicate at Layer 2 while devices in different VLANs cannot. Therefore, Devices 1 and 4 can communicate with each other, and Devices 2 and 3 can communicate with each other at Layer 2.
D is right. Devices 1 and 4 are in VLAN 2, devices 2 and 3 are in VLAN 3.