CompTIA Tech+ (FC0-U71)InfrastructureEasy
A user wants to connect a wireless keyboard to a tablet without using a router or internet connection, and the devices must be within a few feet of each other. Which wireless technology is being used?
- ABluetooth
- BSatellite
- CFiber optic
- DCellular
Show answer & explanationAnswer & explanation
Correct answer: A. Bluetooth
Bluetooth is a short-range wireless technology designed for direct, peer-to-peer connections between nearby devices like keyboards, mice, and headsets, without requiring a router or internet. Cellular and satellite are long-range technologies, and fiber optic is a wired medium.
Why the other options are wrong
- B. Satellite provides long-range connectivity via orbiting satellites.
- C. Fiber optic is a wired transmission medium, not wireless.
- D. Cellular is used for long-range mobile data through carrier towers.
Bluetooth
A short-range wireless technology used to directly connect peripherals like keyboards, mice, and headsets to devices.
- Range typically under 30 feet
- No router/internet required
- Common for pairing accessories
Memory trick: Bluetooth 'buddies up' close devices without needing the internet.