What wireless technology is used for short-range communication between devices?

What wireless technology is used for short-range communication between devices?

• A. Wi-Fi
• B. Bluetooth
• C. NFC
• D. Zigbee

Answer: (B)

The chosen answer, Bluetooth, is indeed a commonly used wireless technology for short-range communication between devices. Bluetooth technology is designed to create personal area networks (PANs) and allows for reliable data exchange between devices that are typically within a range of about 10 meters (33 feet). It is widely utilized for connecting devices such as mobile phones, headphones, keyboards, and other peripherals seamlessly and efficiently. Bluetooth uses a secure connection and operates on the 2.4 GHz frequency band, which is shared by many other devices; however, it is specifically optimized for low-energy data transmission, making it ideal for short-range interactions where power efficiency is a consideration. This feature enables a wide variety of applications, from audio streaming to file sharing, without needing a wired connection. While other options like Wi-Fi, NFC, and Zigbee also support wireless communication, they serve different use cases and ranges. Wi-Fi is generally used for longer-range communication and high data throughput, NFC focuses on very short-range interactions (such as contactless payment systems), and Zigbee is often used in smart home devices for low-power, low-data rate communications but typically covers a slightly larger range than Bluetooth. Thus, Bluetooth stands out specifically for versatile short-range communication between various types of devices

The chosen answer, Bluetooth, is indeed a commonly used wireless technology for short-range communication between devices. Bluetooth technology is designed to create personal area networks (PANs) and allows for reliable data exchange between devices that are typically within a range of about 10 meters (33 feet). It is widely utilized for connecting devices such as mobile phones, headphones, keyboards, and other peripherals seamlessly and efficiently.

Bluetooth uses a secure connection and operates on the 2.4 GHz frequency band, which is shared by many other devices; however, it is specifically optimized for low-energy data transmission, making it ideal for short-range interactions where power efficiency is a consideration. This feature enables a wide variety of applications, from audio streaming to file sharing, without needing a wired connection.

While other options like Wi-Fi, NFC, and Zigbee also support wireless communication, they serve different use cases and ranges. Wi-Fi is generally used for longer-range communication and high data throughput, NFC focuses on very short-range interactions (such as contactless payment systems), and Zigbee is often used in smart home devices for low-power, low-data rate communications but typically covers a slightly larger range than Bluetooth. Thus, Bluetooth stands out specifically for versatile short-range communication between various types of devices