HPE Aruba Certified Associate (ACA) – Network Security — Question 8

What is the best practice for using VSX at the core of a 3-tier design?

Answer options

• A. You should implement VSX at the core when the aggregation layer is layer 3 only with OSPF-routed traffic forwarding between the core and aggregation layers.
• B. You should never implement VSX at the core of a 3-tier redundancy core.
• C. VSX-lags allow the collapsed core to connect directly to services such as gateways and services only so long as spanning tree is used to prevent loops.
• D. You should implement VSX at the core when the aggregation layer operates at layer 2 only.

Correct answer: D

Explanation

The correct answer is D because implementing VSX at the core is most effective when the aggregation layer is limited to layer 2 operations, which ensures optimal performance and redundancy. Option A is incorrect as it describes a scenario where layer 3 is used, which is not ideal for VSX. Option B is wrong because it dismisses the correct use of VSX entirely, and option C inaccurately suggests a direct connection that could lead to network issues without proper precautions.