HPE Aruba Certified Network Security Expert (ACNSX) — Question 112

A company has recently upgraded their campus switching infrastructure with AOS-CX switches. They have implemented 802.1X authentication on access ports where laptop and IOT devices typically connect. An administrator has noticed that for POE devices, the AOS-CX switch ports are delivering the maximum wattage to the port instead of what the device actually needs. Upon connecting the IoT devices, the devices request the maximum wattage through information exchange.
Concerned about this waste of electricity, what should the administrator implement to solve this problem?

Answer options

• A. Implement a classifier policy with the correct power definitions
• B. Create device profiles with the correct power definitions
• C. Enable AAA authentication to exempt LLDP and/or CDP information
• D. Globally enable the QoS trust setting for LLDP and/or CDP

Correct answer: C

Explanation

The correct answer is C because enabling AAA authentication to exempt LLDP and/or CDP information allows the switches to properly recognize the power needs of connected devices rather than defaulting to maximum wattage. Options A and B suggest creating policies or profiles, which wouldn't directly address the issue of excessive power allocation. Option D, while related to QoS, does not solve the problem of power management for PoE devices.