HPE Aruba Certified Switching Professional (ACSP) — Question 11

A company has an Aruba 5400R switch, switch 1, at the network core of its campus. This switch routes all traffic for the campus and is the RSTP root. The company now wants to add another Aruba 5400R switch to the core in order to enhance resiliency. The company wants to use the option that provides the best
Layer 2 and Layer 3 resiliency and also the simplest setup.
What should the administrator do to add the new 5400R switch?

Answer options

• A. Add the new switch and migrate to MSTP with two instances.
• B. Add the new switch and set up OSPF on all switches.
• C. Add the new switch as a secondary root bridge in RSTP.
• D. Add the new switch as a standby member in a VSF fabric with switch 1.

Correct answer: C

Explanation

The correct answer is C because adding the new switch as a secondary root bridge in RSTP enhances resiliency while maintaining the existing RSTP configuration. Option A is incorrect as migrating to MSTP adds complexity without necessarily improving resiliency. Option B is not suitable because setting up OSPF does not directly address Layer 2 resiliency. Option D, while it provides a form of redundancy, complicates the setup compared to simply using RSTP.