ACP Fundamentals & Core Principles 3

Question 1

Which Aruba switching architecture allows multiple switches to be managed as a single logical unit using VSX?

Accepted Answer

Virtual Switching Extension creating an active-active pair

Answer

VSX (Virtual Switching Extension) pairs two switches to operate as an active-active redundant system while maintaining independent control planes.

Question 2

In Aruba's PPSK (Private Pre-Shared Key) implementation, what is the key differentiator from standard WPA2-Personal?

Accepted Answer

Each user or device gets a unique passphrase mapped to a specific role

Answer

PPSK assigns individual passphrases per user or device, allowing unique policy enforcement without deploying 802.1X infrastructure.

Question 3

What does 802.11r (Fast BSS Transition) improve in a wireless environment?

Accepted Answer

Roaming speed between APs by pre-authenticating before disassociation

Answer

802.11r reduces roaming latency by allowing a client to pre-establish keys with the target AP before leaving the current AP.

Question 4

Which component of Aruba ClearPass is responsible for profiling and identifying device types on the network?

Accepted Answer

ClearPass Device Insight / Profiling Engine

Answer

ClearPass's profiling engine fingerprints devices using DHCP, HTTP, and SNMP data to categorize endpoint types automatically.

Question 5

In an Aruba Instant deployment, which AP automatically assumes the role of Virtual Controller (VC)?

Accepted Answer

The AP with the highest MAC address that wins the election

Answer

Aruba Instant APs elect a Virtual Controller using a MAC-address-based election process; the AP with the highest MAC wins by default.

(ACP) Aruba Certified Professional Certification Practice Test