Which of the following is required if devices on different VLANs wish to communicate with each other?

The correct answer is C. They can communicate if there is a router to connect them. A Virtual Local Area Network (VLAN) is a logical separation of devices at Layer 2, even if those devices are connected to the same physical switch. Each VLAN forms its own broadcast domain, and traffic cannot cross from one VLAN to another without Layer 3 routing.

Network and Infrastructure Performance Management Integration

Question

Options

AThey can communicate if they are connected to the same switch.
BThey can communicate if they are in the same broadcast domain.
CThey can communicate if there is a router to connect them.
DThey cannot communicate.

How the community answered

(23 responses)

A
9% (2)
B
4% (1)
C
83% (19)
D
4% (1)

Explanation

A Virtual Local Area Network (VLAN) is a logical separation of devices at Layer 2, even if those devices are connected to the same physical switch. Each VLAN forms its own broadcast domain, and traffic cannot cross from one VLAN to another without Layer 3 routing.

Topics

#VLAN#inter-VLAN routing#broadcast domain#router

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