Final answer:
A Wireless Extender is the correct term for a device that broadens the coverage area of a wireless network by amplifying and retransmitting an existing signal.
Step-by-step explanation:
The device being asked about is used to relay wireless signals from an access point or router to areas with weak signal or no signal. The correct answer to the question is:
Wireless extenders are used to broaden the coverage area of a wireless network. They work by receiving the existing WiFi signal, amplifying it, and then transmitting the boosted signal. This can help to eliminate dead spots where the connection is poor or non-existent. The terms wireless repeater, wireless booster, and signal enhancer are often used interchangeably, but 'wireless extender' is the most commonly accepted term.