Which recommended practice is applicable?

A.
If no core layer is deployed, the design will be easier to scale.
B.
A dedicated campus core layer should be deployed for connecting three or more buildings.
C.
If no core layer is deployed, the distribution switches should not be fully meshed.
D.
A dedicated campus core layer is not needed for connecting fewer than five buildings.
B
As a recommended practice, deploy a dedicated campus core layer to connect three or
more buildings in the enterprise campus, or four or more pairs of building distribution
switches in a very large campus. The campus core helps make scaling the network easier
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most of the questions here are changed now , don’t go just with them
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