Which of the following statements about Bluetooth connectivity are true?

1.Bluetooth will only work over long distances

2.No wires are needed when exchanging files via Bluetooth

3.Bluetooth allows you to speak hands-free on a mobile phone

4.Music can be played wirelessly from your mobile phone to a speaker using Bluetooth

5.Transfer speeds when sending files are faster than using Wi-Fi

A1 & 5 only

B1, 2 & 3 only

C3, 4 & 5 only

D2, 3 & 4 only ✓ Correct

Correct answer: (D) 2, 3 & 4 only

Explanation

Statements 2, 3 and 4 are correct: Bluetooth needs no wires to exchange files, allows hands-free calling and can stream music to a speaker.

Statement 1 is wrong because Bluetooth works only over short distances, typically about ten metres.

Statement 5 is wrong because Bluetooth transfer speeds are slower than Wi-Fi, not faster.

Bluetooth links devices wirelessly over short-range radio in the 2.4 GHz band.

Hands-free headsets and car kits are common Bluetooth uses for calling.

Bluetooth is designed for low power over short range, while Wi-Fi carries far more data over longer range.

Want more like this? Create a free account to practise a full test, track your progress, and get spaced-repetition review.