Which of the following statements accurately describes VLANs?
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A. B. C. D.A.
A virtual area network (VLAN) can span any networks within a data center, or it can span across different physical locations and data centers.
Virtual Local Area Networks (VLANs) are a technology used in computer networking to group network devices and computers together into logical networks that behave as if they are physically connected to the same network switch.
Answer A is not accurate because VLANs can be restricted to the same data center or the same racks if configured that way. However, VLANs can span multiple physical locations if they are configured to do so.
Answer B is partially accurate because VLANs can be restricted to the same data center, but not necessarily to the same rack. VLANs can span multiple racks within a data center.
Answer C is not accurate because VLANs can be configured to span multiple racks and data centers.
Answer D is not accurate because VLANs are not restricted to the same switches, although they can be limited to the same switches if configured that way.
In summary, the most accurate answer is B because VLANs are not restricted to the same rack but are usually restricted to the same data center. However, VLANs can be configured to span multiple data centers and multiple racks within a data center.