Which term describes Bluetooth, a short-range wireless technology used to connect devices like phones and headsets?

Which term describes Bluetooth, a short-range wireless technology used to connect devices like phones and headsets?

• A. Ad hoc network
• B. NFC
• C. GPS
• D. Bluetooth

Answer: (D)

Bluetooth is a short-range wireless technology designed to connect nearby devices such as phones and headsets. It operates in the 2.4 GHz band and creates small personal-area networks that let devices exchange audio and data without cables, typically over distances up to about 10 meters. This makes it ideal for pairing peripherals like headphones, speakers, and hands-free devices. Ad hoc network refers to a spontaneous network topology where devices communicate directly to form a network, which is a broader concept than the specific wireless standard described here. NFC is a near-field technology with only a few centimeters of range, intended for quick taps and data transfer, not continuous device linking. GPS is a satellite-based positioning system used to determine location, not to establish short-range wireless connections.

Bluetooth is a short-range wireless technology designed to connect nearby devices such as phones and headsets. It operates in the 2.4 GHz band and creates small personal-area networks that let devices exchange audio and data without cables, typically over distances up to about 10 meters. This makes it ideal for pairing peripherals like headphones, speakers, and hands-free devices. Ad hoc network refers to a spontaneous network topology where devices communicate directly to form a network, which is a broader concept than the specific wireless standard described here. NFC is a near-field technology with only a few centimeters of range, intended for quick taps and data transfer, not continuous device linking. GPS is a satellite-based positioning system used to determine location, not to establish short-range wireless connections.