Peripheral Device Security

Correct Answer: Keyboard with frequency hopping

A keyboard with frequency hopping is the best choice to mitigate interference from other wireless devices. Frequency hopping allows the keyboard to rapidly switch between different radio frequencies, making it less susceptible to interference from other devices operating on the same or nearby frequencies. Solar power is irrelevant to reducing interference. Mechanical switches are a preference for key feel and durability, but do not affect wireless performance. A built-in touchpad is a convenience feature unrelated to the wireless functionality and interference resistance of the keyboard.

Correct Answer: Implementing and enforcing a policy of only using authorized USB devices

Implementing and enforcing a policy of only using authorized USB devices is the best measure to protect the network from potential malware introduced by personal USB storage devices. This ensures that only USB devices that have been vetted and approved by the company's IT department are allowed to connect to company computers, reducing the risk of malware infection. Making employees sign an agreement is not as effective as actually enforcing the policy through technical means. Relying solely on antivirus software is not sufficient, as it may not catch all threats, and it's better to prevent the introduction of malware in the first place. Disabling USB ports entirely is too restrictive and would prevent the use of legitimate USB devices, hindering productivity.

Correct Answer: Check that the mouse's sensor is clean

A dirty sensor can cause erratic movement in a mouse. Checking and cleaning the sensor is the first step to troubleshooting the issue. Other suggestions, such as reinstalling the operating system or enabling Bluetooth, will not address the root cause of the problem.