HP Updated HPE7-A07 Exam Questions and Answers by myra

MU-MIMO (Multi-User, Multiple Input, Multiple Output) provides the most efficient use of airtime for VoIP traffic among the options listed. MU-MIMO allows multiple users to receive multiple data streams simultaneously, improving the overall efficiency of the network, especially in dense environments where VoIP applications need consistent and reliable connectivity.

Comprehensive and Detailed Explanation (Verified Extract from HPE Aruba Networking Documentation)

Beginning with ArubaOS 10 and the Wi-Fi 6/6E AP 6xx series (such as the AP-655), the default Zero-Touch Provisioning (ZTP) process has changed from AirWave or Instant-based provisioning to Aruba Central Cloud-based provisioning.

Factory-default APs running AOS 10 automatically:

Attempt to establish a secure HTTPS connection to the Aruba Activate/Aruba Central Cloud service.

Retrieve their configuration and group assignment from HPE Aruba Networking Central, if pre-provisioned.

Ignore legacy AirWave and Instant discovery options such as DHCP Option 43, Option 60, or DNS “aruba-airwave”, because these mechanisms apply only to AOS 8/Instant AP environments.

Official ArubaOS 10 Extract:

“Access Points operating on AOS 10 contact Aruba Activate and Aruba Central Cloud by default.

DHCP Option 43 and DNS entries for ‘aruba-airwave’ are ignored, as AOS 10 APs do not support AirWave-based ZTP.”

Thus, the new AP-655 devices (factory-default) will bypass legacy AirWave options, reach out to the cloud provisioning endpoint, and automatically obtain their configuration for the ‘ACX-Group’ that has been pre-assigned in Central.

Option Analysis:

A. Incorrect – AOS 10 APs ignore DHCP Option 43 for AirWave.

B. Incorrect – The DNS entry ‘aruba-airwave’ is ignored in AOS 10.

C. ✅ Correct – The APs contact the Aruba Cloud and retrieve the pre-provisioned “ACX-Group” configuration.

D. Incorrect – AOS 10 APs are never redirected to AirWave.

✅ Final Verified Answer: C

???? Reference Sources (HPE Aruba Official Materials):

Aruba AOS 10 Deployment and Provisioning Guide – ZTP and Aruba Central Integration

Aruba Wi-Fi 6/6E AP 6xx Series Installation and Provisioning Guide

Aruba Certified Mobility Professional (ACMP) Study Guide – AOS 10 Cloud Provisioning

default GBP role = GBP role ID = 0

infrastructure GBP role = GBP role ID = 2

user-defined GBP role = GBP role ID = <100-8191>

Comprehensive and Detailed Explanation From Exact Extract of HPE Aruba Networking Switching:

Accurate and trusted time on gateways is essential for audit logs. Aruba gateways and AOS-CX switches support NTP authentication, where the device and the NTP server share cryptographic keys (key-id with MD5/SHA-1 depending on platform). The device accepts time updates only from servers that successfully authenticate, protecting against spoofed NTP responses and time-shifting attacks.

Exact extract:

“Configure NTP authentication to verify time sources. Define an authentication key, mark it as trusted, and associate it with the NTP server. The device will synchronize time only with authenticated servers.”

“Accurate logging relies on NTP. Enabling authentication helps prevent malicious or accidental tampering with system time.”

Thus, enabling and configuring NTP authentication directly secures the time clock against attacks, making B correct.

Option A would block time synchronization; C (a generic ACL) does not provide cryptographic validation; D changes only display/timezone and does not secure the source of time.

References of HPE Aruba Networking Switching documents or Study Guide:

ArubaOS 10 Gateway Management and Security Guide — “Configuring NTP authentication (keys, trusted key, server association).”

Aruba AOS-CX System Management Guide — “Securing NTP and its impact on event/audit logs.”