hard
Single Answer
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Which statement is correct about controller-based networking?

Answer Options

A

Controller-based networking is always in the form of hardware appliances.

B

Controller-based networking has a logically centralized control plane.

C

Controller-based networking has a logically centralized data plane.

D

Controller-based networking uses ASICs to centrally switch frames.

Correct Answer: B

Explanation

Controller-based networking has a logically centralized control plane to centrally control the data plane. The data plane is not centralized because switching and routing of data must be done very fast, usually with the use of application-specific integrated circuits (ASICs). Controller-based networking comes in many different forms, ranging from applications to hardware appliances. Both controller-based network switching and autonomous network switching use ASICs, but controller-based network switches do not centrally switch frames.

sdn
controller-based-networking
control-plane
data-plane
network-architecture