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NEW QUESTION # 42
Which three actions help keep airtime utilization low within a wireless deployment? (Choose three.)
Answer: B,C,F
Explanation:
Maintaining low airtime utilization is key to achieving high efficiency and performance in Wi-Fi networks. RUCKUS recommends minimizing factors that increase channel contention and protocol overhead.
Per RUCKUS One Online Help - Airtime Management and Optimization and RUCKUS AI Documentation - Channel Utilization Insights, the following actions are most effective:
(A) Limiting older/legacy clients: 802.11a/b/g clients transmit at lower rates and occupy more airtime per packet.
(D) Ensuring sufficient AP capacity for clients: Proper AP density ensures users are distributed evenly, reducing per-AP contention.
(F) Mitigating non-802.11 interference: Removing microwave ovens, Bluetooth devices, and other RF noise sources prevents wasted airtime from retries.
Adding more SSIDs (WLANs) increases management frame overhead, and full transmit power causes excessive cell overlap-both raise airtime use.
Reference:
RUCKUS One Online Help - Airtime Utilization and Channel Efficiency Tuning RUCKUS Analytics 3.5 User Guide - Channel Utilization and RF Health RUCKUS AI Documentation - Wi-Fi Efficiency and Airtime Optimization Techniques
NEW QUESTION # 43
What is a true statement regarding MIMO in Wi-Fi networks?
Answer: B
Explanation:
MIMO (Multiple Input, Multiple Output) is a fundamental wireless technology that enhances Wi-Fi throughput and reliability by transmitting multiple data streams simultaneously using multiple antennas on both the transmitter and receiver. It was introduced in the IEEE 802.11n standard, which marked the beginning of high-throughput (HT) Wi-Fi.
According to RUCKUS One Online Help and the RUCKUS Analytics 3.5 User Guide, MIMO enables spatial multiplexing, diversity gain, and beamforming, allowing higher data rates and improved signal quality in multipath environments. Subsequent standards (802.11ac and 802.11ax) expanded this concept to MU-MIMO (Multi-User MIMO), allowing simultaneous communication with multiple clients.
MIMO requires support on both the AP and client for full functionality; otherwise, the connection falls back to single-stream operation. It is used in both uplink and downlink directions (especially in Wi-Fi 6 and later). Thus, option B-introduced in 802.11n-is correct, while options A, C, and D are incorrect.
Reference:
RUCKUS One Online Help - PHY Technologies and MIMO Concepts
RUCKUS Analytics 3.5 User Guide - Radio Metrics and Client PHY Data
RUCKUS AI Documentation - Wi-Fi 6 (802.11ax) MIMO and MU-MIMO Capabilities
NEW QUESTION # 44
Which two statements about Auto Cell Sizing (ACS) are true? (Choose two.)
Answer: A,E
Explanation:
Auto Cell Sizing (ACS)is a RUCKUS feature designed to automatically optimize the RF environment by dynamically adjustingtransmit power levelsof access points to ensure balanced coverage and minimal interference between APs.
According to theRUCKUS One Online Help - RF Management and Auto Cell SizingandRUCKUS AI documentation - RF Optimization Tools, ACS:
* Automatically adjusts radio transmit power (B)based on environmental conditions and neighboring AP coverage.
* Requires background scanning to be enabled (D)so the system can measure the surrounding RF conditions and interference patterns.
ACS doesnot automatically adjust channel selection, as that functionality is handled byChannelFly, a separate RUCKUS technology. It isnot enabled by default, and manual power tuning is typically disabled when ACS is active, since the controller manages power dynamically to maintain optimal cell overlap.
Thus, the correct answers areB(it can automatically adjust radio power) andD(it requires background scanning to be enabled).
References:
RUCKUS One Online Help - RF Optimization: Auto Cell Sizing and ChannelFly RUCKUS Analytics 3.5 User Guide - RF Health and Adaptive Power Management RUCKUS AI Documentation - Adaptive RF Optimization and Power Adjustment Mechanisms
NEW QUESTION # 45
By which process does 802.11k assist in client roaming?
Answer: C
Explanation:
The IEEE 802.11k amendment enhances Wi-Fi client roaming by allowing an AP to share information about nearby access points with connected clients. This process, known as the Neighbor Report , provides a list of available APs that the client can use to make faster, more informed roaming decisions.
When a client device receives this neighbor list, it can scan fewer channels , reducing latency and improving the handoff experience-especially in enterprise networks managed by RUCKUS One , SmartZone , or RUCKUS Cloud . According to RUCKUS One Online Help and RUCKUS AI documentation , enabling
802.11k/v/r features together allows for fast and seamless roaming , as 802.11k supplies discovery data,
802.11v assists with steering decisions, and 802.11r enables fast re-authentication.
Option C is correct because 802.11k's core function is to help clients identify the best potential APs to roam to. The other options describe unrelated functions: encryption caching relates to 802.11r, ignoring weak clients is an AP policy function, and forcing disconnections occurs during load balancing or steering-not through 802.11k.
References:
RUCKUS One Online Help - WLAN Configuration: 802.11k/v/r Roaming Enhancements RUCKUS Analytics 3.5 User Guide - Client Mobility and Roaming Analysis RUCKUS AI Documentation - Intelligent Roaming Optimization and Neighbor Reports
NEW QUESTION # 46
Which three actions help keep airtime utilization low within a wireless deployment? (Choose three.)
Answer: B,C,F
Explanation:
Maintaining low airtime utilization is key to achieving high efficiency and performance in Wi-Fi networks.
RUCKUS recommends minimizing factors that increase channel contention and protocol overhead.
Per RUCKUS One Online Help - Airtime Management and Optimization and RUCKUS AI Documentation - Channel Utilization Insights , the following actions are most effective:
* (A) Limiting older/legacy clients: 802.11a/b/g clients transmit at lower rates and occupy more airtime per packet.
* (D) Ensuring sufficient AP capacity for clients: Proper AP density ensures users are distributed evenly, reducing per-AP contention.
* (F) Mitigating non-802.11 interference: Removing microwave ovens, Bluetooth devices, and other RF noise sources prevents wasted airtime from retries.
Adding more SSIDs (WLANs) increases management frame overhead, and full transmit power causes excessive cell overlap-both raise airtime use.
References:
RUCKUS One Online Help - Airtime Utilization and Channel Efficiency Tuning RUCKUS Analytics 3.5 User Guide - Channel Utilization and RF Health RUCKUS AI Documentation - Wi-Fi Efficiency and Airtime Optimization Techniques
NEW QUESTION # 47
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