What frequencies does Wi-Fi primarily use for data transmission?

• 700 MHz and 2.1 GHz

• 2.4 GHz and 5 GHz

• 38 kHz and 40 kHz

• 13.56 MHz

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What special characteristic does Bluetooth possess to avoid interference from other devices?

• Multiple Input Multiple Output (MIMO)

• Orthogonal Frequency-Division Multiplexing (OFDM)

• Frequency Hopping

• Data segmentation into cells

Which statement accurately describes the frequency and range characteristics of 5G technology compared to LTE?

• 5G uses lower frequencies than LTE, resulting in longer range.

• 5G uses higher frequencies than LTE, allowing for very high speeds but with a shorter range.

• Both LTE and 5G use the same frequencies and have similar ranges.

• 5G primarily uses infrared light for communication, offering very short range.

What is a common application for infrared technology due to its short-range communication capabilities?

• Connecting to the internet in remote locations.

• Controlling devices like televisions with a remote control.

• High-definition video streaming.

• Wireless payments at a terminal.

What is the typical maximum communication distance for Near Field Communication (NFC)?

• Up to 100 meters

• Several kilometers

• Less than 10 centimeters

• Up to 1 meter