The system administrator has been notified that many users are having difficulty connecting to the company's wireless network. They take a new laptop and physically go to the access point and connect

Question

Options

• AThe certificate used to authenticate users has been compromised and revoked.
• BMultiple war drivers in the parking lot have exhausted all available IPs from the pool to deny access.
• CAn attacker has gained access to the access point and has changed the encryption keys.
• DAn unauthorized access point has been configured to operate on the same channel.

• A
  9% (6)
• B
  3% (2)
• C
  15% (10)
• D
  74% (50)

Explanation

A rogue (unauthorized) access point configured on the same channel as the legitimate AP causes radio frequency interference and channel contention. Users farther away experience degraded or failed connectivity because their devices compete with both the legitimate and rogue AP for the same channel. The administrator, being physically at the legitimate AP, connects successfully because the signal strength of the legitimate AP overwhelms the interference at that close range. Option A (revoked certificates) would affect all users uniformly, including the admin. Option B (war drivers exhausting IPs) is implausible as DHCP pools are scoped to the internal network. Option C (changed encryption keys) would also prevent the admin from connecting.

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