ACMA Access Point Deployment 2 — Questions and Answers
Question 1: An Aruba AP is placed in a warehouse with high ceilings and metal shelving. Which antenna type best mitigates multipath interference in this environment?
- Omnidirectional dipole
- Patch directional antenna (Correct answer)
- Yagi antenna
- Sector antenna
Correct answer: Patch directional antenna
Patch directional antennas focus signal in a specific direction, reducing multipath reflections common in metal-rich environments.
Question 2: Which Aruba AP deployment mode allows the AP to provide wireless access even when the controller is unreachable?
- Tunnel mode
- Bridge mode
- Mesh mode
- Survivability mode (Correct answer)
Correct answer: Survivability mode
Survivability mode allows an AP to continue serving clients using cached configuration when controller connectivity is lost.
Question 3: When deploying APs in a high-density lecture hall, what is the primary design consideration?
- Maximizing transmit power on each AP
- Minimizing the number of APs to reduce interference
- Using lower transmit power with more APs for capacity (Correct answer)
- Deploying only 5 GHz radios
Correct answer: Using lower transmit power with more APs for capacity
High-density environments require more APs at lower power to increase capacity while controlling co-channel interference.
Question 4: What is the purpose of the Aruba AP's 'local probe response' feature during deployment?
- To respond to client probe requests locally without forwarding to the controller (Correct answer)
- To send probe frames to detect rogue APs
- To test the AP's RF environment before deployment
- To authenticate clients before association
Correct answer: To respond to client probe requests locally without forwarding to the controller
Local probe response allows the AP to answer client probe requests directly, reducing controller load and improving roaming speed.
Question 5: An AP is deployed outdoors and loses its DHCP lease. Which IP address will it attempt to use to maintain connectivity?
- 169.254.x.x APIPA address
- The last valid DHCP address from its lease (Correct answer)
- A static fallback address configured by the administrator
- It will power cycle and restart the DHCP process
Correct answer: The last valid DHCP address from its lease
Aruba APs retain the last valid DHCP address to maintain controller connectivity when DHCP renewal fails.
Question 6: Which CLI command on an Aruba controller verifies that an AP has successfully joined and is in an 'up' state?
- show ap active (Correct answer)
- show ap database
- show ap monitor
- show ap config
Correct answer: show ap active
'show ap active' displays all APs currently connected to the controller with their operational status.
Question 7: A newly deployed Aruba AP continuously reboots after receiving its image. What is the most likely cause?
- The AP's SSID is misconfigured
- Insufficient PoE power budget on the switch port (Correct answer)
- The controller license has expired
- The AP is in bridge mode instead of tunnel mode
Correct answer: Insufficient PoE power budget on the switch port
Insufficient PoE power causes the AP to draw more current than available, leading to repeated power cycles and reboots.
ACMA Access Point Deployment 2
An Aruba AP is placed in a warehouse with high ceilings and metal shelving.
Which antenna type best mitigates multipath interference in this environment?