A technician is configuring a wireless guest network. After applying the most recent changes the technician finds the new devices can no longer find the wireless network by name but existing devices…

Question

Options

• ADeactivation of SSID broadcast
• BReduction of WAP signal output power
• CActivation of 802.1X with RADIUS
• DImplementation of MAC filtering
• EBeacon interval was decreased

• A
  84% (26)
• B
  3% (1)
• C
  10% (3)
• D
  3% (1)

Explanation

Disabling SSID broadcast hides the network's name from the list of available networks that new devices scan for - since new devices have no saved profile for it, they simply can't discover it. Existing devices, however, already have the SSID stored in their network profiles and can still connect by proactively sending probe requests for that known name, which is why they are unaffected.

Why the distractors are wrong:

• B (Signal power reduction) would shrink coverage range and affect all devices based on proximity, not selectively block new ones from finding it by name.
• C (802.1X/RADIUS) adds an authentication layer that all devices - new and existing - would need to satisfy; existing devices would also fail or be prompted, not silently continue working.
• D (MAC filtering) controls who can connect, not whether the network is visible; new devices could still see the SSID in scan results, and existing devices with unlisted MACs would also be blocked.
• E (Decreased beacon interval) sends beacons more frequently (shorter interval = more beacons per second), making the network more discoverable, not less.

Memory tip: Think of SSID broadcast as the network's "nametag at a party." Turn it off and new arrivals can't see your name - but people who already know you can still find you if they call out your name directly.

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