ACMA Access Point Deployment 3 — Questions and Answers
Question 1: What Aruba technology allows multiple APs to coordinate channel and power settings automatically after deployment?
- ARM (Adaptive Radio Management) (Correct answer)
- WMM (Wi-Fi Multimedia)
- BSS Coloring
- MU-MIMO
Correct answer: ARM (Adaptive Radio Management)
ARM dynamically adjusts channel selection and transmit power across APs to optimize coverage and minimize interference.
Question 2: When deploying an AP in a location with no existing wired infrastructure, which Aruba feature enables connectivity back to the network?
- 802.1X port authentication
- Mesh networking (Correct answer)
- Captive portal
- LACP bonding
Correct answer: Mesh networking
Aruba mesh networking allows APs to backhaul traffic wirelessly to a mesh portal AP connected to the wired network.
Question 3: An Aruba AP is deployed in a conference room that is shielded with low-e glass. What deployment adjustment should be made?
- Increase the AP transmit power to maximum
- Place an additional AP inside the shielded room (Correct answer)
- Switch the AP to 2.4 GHz only
- Disable ARM and use static channels
Correct answer: Place an additional AP inside the shielded room
Low-e glass significantly attenuates RF signals, requiring an AP to be placed inside the shielded area for proper coverage.
Question 4: Which deployment scenario requires an Aruba AP to be configured in 'Air Monitor' mode?
- Providing guest wireless access
- Detecting and classifying rogue APs across all channels (Correct answer)
- Extending wireless coverage to a dead zone
- Serving as a mesh backhaul node
Correct answer: Detecting and classifying rogue APs across all channels
Air Monitor mode dedicates the AP to scanning all channels for rogue detection and WIDS/WIPS functions without serving clients.
Question 5: What is the default encapsulation method used when an Aruba AP in tunnel mode forwards client traffic to the controller?
- IPsec ESP tunnel
- GRE (Generic Routing Encapsulation)
- CAPWAP data channel (Correct answer)
- VXLAN
Correct answer: CAPWAP data channel
Aruba APs use CAPWAP (Control and Provisioning of Wireless Access Points) to encapsulate both control and data traffic to the controller.
Question 6: During AP deployment planning, what does the term 'cell breathing' refer to?
- The automatic expansion of an AP's coverage area when a neighboring AP fails (Correct answer)
- The dynamic adjustment of SSID broadcast intervals
- The oscillation of AP transmit power based on client density
- The scheduled restart of APs during off-peak hours
Correct answer: The automatic expansion of an AP's coverage area when a neighboring AP fails
Cell breathing occurs when an AP automatically increases transmit power to fill coverage gaps created by a failed neighboring AP.
Question 7: An Aruba AP is being installed above a drop ceiling. What cable management practice is required by the NEC for in-plenum AP deployments?
- Use standard Cat6 cable with zip ties
- Use plenum-rated (CMP) cables only (Correct answer)
- Install conduit around all standard cables
- Use fiber optic cabling exclusively
Correct answer: Use plenum-rated (CMP) cables only
NEC requires plenum-rated (CMP) cables in air-handling spaces like drop ceilings to prevent toxic fumes during a fire.
ACMA Access Point Deployment 3
What Aruba technology allows multiple APs to coordinate channel and power settings automatically after deployment?