AnswerA, D
ExplanationA hidden node problem occurs when two or more client devices are within range of the AP but cannot hear each other, causing frame collisions that lead to degraded performance.
According to RUCKUS One Online Help -- RF Interference and Hidden Node Detection and RUCKUS AI Documentation -- Airtime Efficiency Analysis, the symptoms include:
(A) Retransmissions: Frequent retries due to undetected collisions.
(D) Reduced throughput: Effective throughput decreases as airtime is wasted on retransmissions and ACK delays.
The issue is common in high-density or obstructed environments. Enabling RTS/CTS or BeamFlex+ can mitigate it by improving communication coordination.
''Channel changes'' occur in interference mitigation, not hidden-node detection; ''Excessive roaming'' and ''Increased Tx power'' are unrelated effects.
RUCKUS One Online Help -- Hidden Node Problem and Mitigation Strategies
RUCKUS Analytics 3.5 User Guide -- Retransmission and Airtime Metrics
RUCKUS AI Documentation -- Hidden Node Impact on Throughput and Retry Analysis