Bluetooth questions and answers

300+ TOP BLUETOOTH Interview Questions and Answers

Why is Bluetooth 5.0 better? ...
Name few applications of Bluetooth? ...
How many devices can communicate concurrently? ...
What is Pairing? ...
How secure a Bluetooth device is? ...
What is Bluetooth SIG? ...
What are the problems with older versions ? ...
What are Different Classes in Bluetooth?

What is Bluetooth short answer?
What is Bluetooth needed for?
Why it is called Bluetooth?
How far does Bluetooth reach?
What is the Bluetooth symbol?
Who invented Bluetooth?
Which protocol is used in Bluetooth?
What frequency is Bluetooth?
What energy is Bluetooth?
Why FSK is used in Bluetooth?
How many kinds of Bluetooth are there?
Is Bluetooth a guided media?
How many types of Bluetooth are there?

What is Bluetooth short answer?

Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances using UHF radio waves in the ISM bands, from 2.402 to 2.48 GHz, and building personal area networks (PANs).

What is Bluetooth needed for?

As mentioned earlier, Bluetooth is often used to pair mobile devices with other mobile or fixed devices. This could be your earbuds, your car, and your smart fridge. But it is often also working in ways that are less immediately apparent, such as linking a printer or mouse to a computer.

Why it is called Bluetooth?

Surprisingly, the name dates back more than a millennia to King Harald “Bluetooth” Gormsson who was well known for two things: Uniting Denmark and Norway in 958. His dead tooth, which was a dark blue/grey color, and earned him the nickname Bluetooth.

How far does Bluetooth reach?

The range of the Bluetooth® connection is approximately 30 feet (10 meters). However, maximum communication range will vary depending on obstacles (person, metal, wall, etc.) or electromagnetic environment. NOTE: Not all audio devices are supplied with Bluetooth capability.

What is the Bluetooth symbol?

The squiggle of shapes in the bright blue brandmark comes from the runes in the Roman alphabet representing “H” and “B”. In other words, they're the initials for Harald Bluetooth. In technical terms, the Bluetooth logo is a “bind-rune”. This simply means that it's an image made up of two runes merged together.

Who invented Bluetooth?

Jaap Haartsen has been active in the area of wireless communications for more than 25 years. In 1994, he laid the foundations for the system that was later known as the Bluetooth Wireless Technology, enabling connections between a seemingly endless array of devices.

Which protocol is used in Bluetooth?

The commonly adopted protocols used in Bluetooth are Point-to-Point Protocol (PPP), Internet Protocol (IP), User Datagram Protocol (UDP), Transmission Control Protocol (TCP), and Wireless Application Protocol (WAP).

What frequency is Bluetooth?

Frequency. Bluetooth only does its work on a 2.4GHz frequency, whereas many WiFI networks these days will run on both 2.4GHz and 5GHz frequencies.

What energy is Bluetooth?

Bluetooth is a Connection Oriented technology, connection need to be established first between Bluetooth compliant devices before data transfer takes place. Bluetooth is a wireless technology that uses low-energy radio waves to send wireless data between Bluetooth-enabled devices.

Why FSK is used in Bluetooth?

Bluetooth technology uses a special binary frequency shift keying modulation scheme called Gaussian Frequency Shift Keying (GFSK). It's a binary modulation scheme because each symbol represents only one bit, with a value of either zero or one.

How many kinds of Bluetooth are there?

From a technical perspective, there are essentially three different types of devices: “Classic” Bluetooth, Blue- tooth dual-mode and Bluetooth single-mode. The first is the “classic” Bluetooth device as mentioned earlier.

Is Bluetooth a guided media?

The guided media is a type of media transmission system, where the transmission is performed through connected wiring system and physical medium is necessary in this case. ... That's why, we cannot consider the bluetooth as a guided media.

How many types of Bluetooth are there?

There are two types of Bluetooth technology as of 2020: Bluetooth Low Energy (LE) and Bluetooth Classic (more formally known as Bluetooth Basic Rate/Enhanced Data Rate, or BR/EDR) [source: Bluetooth SIG]. Both operate using the same frequency band, but Bluetooth LE is the more popular option, by far.