CompTIA Network+ (N10-008) — Question 556

While using a secure conference call connection over a corporate VPN, a user moves from a cellular connection to a hotel wireless network. Although the wireless connection and the VPN show a connected status, no network connectivity is present. Which of the following is the MOST likely cause of this issue?

Answer options

• A. MAC filtering is configured on the wireless connection.
• B. The VPN and the WLAN connection have an encryption protocol mismatch.
• C. The WLAN is using a captive portal that requires further authentication.
• D. Wireless client isolation is enforced on the WLAN settings.

Correct answer: C

Explanation

The correct answer is C because captive portals require users to authenticate before granting full network access, which would explain the lack of connectivity. Option A is incorrect as MAC filtering would deny access rather than allow a connected status. Option B is not applicable as encryption mismatches typically result in connection failures, not connected statuses. Option D is also incorrect because client isolation would restrict communication between clients but not prevent overall network connectivity.