What are two necessary parameters for achieving a fast roaming, uninterrupted transition, and access point redundancy? (Choose two.)

Question

Options

• Adeploying all access points on the same channel
• Bmaintaining a noisy environment
• Clow signal-to-noise ratio
• Dradio frequency coverage overlap

• A
  73% (27)
• B
  19% (7)
• C
  8% (3)

Explanation

Deploying access points on the same channel (A) allows a wireless client to immediately detect and associate with a neighboring AP without scanning across multiple channels, which dramatically reduces handoff time during roaming. RF coverage overlap (D) ensures the client maintains a usable signal from a neighboring AP before the current one drops below threshold, enabling a seamless transition rather than a connection gap - and provides redundancy if one AP fails.

Option B (noisy environment) is wrong because noise degrades signal quality and forces retransmissions, which would slow roaming and increase disruption. Option C (low SNR) is wrong for the same reason - a low signal-to-noise ratio means poor link quality, making it harder to maintain or switch connections, not easier.

Memory tip: Think of the two correct answers as "hear them fast, hear them everywhere" - same channel means you hear the next AP fast (no scanning delay), and overlap means you hear it everywhere you roam (no dead zones).

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