CompTIA ITF+ (FC0-U61) — Question 77

Concerned with vulnerabilities on a home network, an administrator replaces the wireless router with a recently released new device. After configuring the new device utilizing the old SSID and key, some light switches are no longer communicating. Which of the following is the MOST likely cause?

Answer options

• A. The light switches do not support WPA2.
• B. The router is operating on a different channel.
• C. The key does not meet password complexity requirements.
• D. The SSID is not being broadcast.

Correct answer: B

Explanation

The most likely reason the light switches are not functioning is that the new router is set to a different channel than the previous one, causing communication issues. The other options are less likely because the SSID and key have remained consistent, and most modern devices support WPA2 and do not have strict complexity requirements for keys.