CompTIA ITF+ (FC0-U71) — Question 13

A user's internet speed is slow. The user logs in to the router's administrator portal and sees that unauthorized devices are connected to the network. Which of the following actions should the user take to prevent unauthorized use of the network?

Answer options

• A. Call the internet provider's support line.
• B. Decrease the Wi-Fi signal range.
• C. Change the password.
• D. Reset the router.

Correct answer: C

Explanation

Changing the password is the most effective way to prevent unauthorized devices from accessing the network, as it will disconnect all unauthorized users and require them to enter the new password. Calling the internet provider's support line may help with speed issues, but it won't address unauthorized access. Decreasing the Wi-Fi signal range may limit access but does not eliminate already connected unauthorized devices. Resetting the router is a more drastic measure that may not be necessary if the password can be changed.