Question

1. What is MiFi and how does it work?

2. What is the usual range of a Bluetooth device?

3. What are the download and upload speeds for mobile devices connected to an LTE network?

4. What is the Internet of Things?

Answer 1

`Hey,

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1)

MiFi devices are small, wireless devices that let multiple users and mobile devices share a mobile broadband internet connection. A MiFi taps into 3G or 4G mobile phone networks and uses this connection to create a mini wireless broadband cloud or hotspot. This can then be shared between mobile internet-enabled devices — such as smartphones, laptops, tablets and even games consoles — that are within range of its signal.

2)

Range of Bluetooth is dependant on its class and primarily there are three classes of Bluetooth:

1. Class 1 transmitting at 100 mW with a range of 100 meters or 328 feet.
2. Class 2 transmiting at 2.5 mW with a range of 10 meters or 33 feet (most Bluetooth headsets and headphones are common Class 2 devices).
3. Class 3 transmitting at 1 mW with a range of fewer than 10 meters.

3)

4G LTE average download speed is 12–30 Mbps. In large cities, the average download speed reaches 35 Mbps.  4G boosts upload speeds to 8Mbps on average and 50Mbps at the very top end.

4)

The Internet of Things (IoT), also sometimes referred to as the Internet of Everything (IoE), consists of all the web-enabled devices that collect, send and act on data they acquire from their surrounding environments using embedded sensors, processors and communication hardware.

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