CompTIA A+ Core 1 (220-1201)Mobile DevicesEasy
A user pairs a smartphone with a Bluetooth speaker to stream music wirelessly. Which Bluetooth profile is responsible for transmitting high-quality stereo audio to the speaker?
- AA2DP
- BHID
- CSPP
- DPAN
Show answer & explanationAnswer & explanation
Correct answer: A. A2DP
A2DP (Advanced Audio Distribution Profile) is the Bluetooth profile designed for streaming high-quality stereo audio between devices, such as from a phone to a wireless speaker or headphones.
Why the other options are wrong
- B. HID (Human Interface Device) profile is used for keyboards and mice, not audio streaming.
- C. SPP (Serial Port Profile) emulates a serial connection for data, not stereo audio.
- D. PAN (Personal Area Network) profile is used for networking/tethering, not audio.
A2DP Bluetooth Profile
A Bluetooth profile that enables the transmission of high-quality stereo audio from a source device to a receiving device like speakers or headphones.
- Used for music/audio streaming
- Different from HID (input devices) and PAN (networking)
- Part of the Bluetooth Classic profile suite
Memory trick: 'A2DP = Audio to Distant Player'