A device used to manage signal attenuation problems in CCTV systems is called a(n) _____.

An amplifier is specifically designed to boost the strength of a video signal in a CCTV system, addressing issues related to signal attenuation. Signal attenuation can occur due to the distance between the camera and the monitor or DVR, and results in a weaker signal that may degrade picture quality. Using an amplifier helps restore the signal to an adequate level for clear transmission, ensuring that the video feed maintains its integrity over longer distances or through various interferences.

While routers, converters, and switches play vital roles in networking and signal management, they do not directly address the issue of signal loss in the same manner as amplifiers. A router generally directs data packets within a network but is not involved in augmenting signal strength. A converter might change the format of the signal but does not enhance its power, and a switch allows for the connection of multiple devices on a network, which is more about routing signals rather than boosting them. Thus, an amplifier is the most appropriate device for managing signal attenuation issues in CCTV systems.