Bluetooth Interview Questions 3

What is the total number of masters and slaves in a piconet?

1 Master and 7 Slaves.

Under what frequency range does Bluetooth work?

2.45 GHz is the frequency range.

What is the frequency range used for Bluetooth in Europe and United States?

2402 MHz to 2480 MHz are the frequency ranges used in USA and Europe

What is the frequency range used for Bluetooth in Japan?

2472 to 2497 MHz is the frequency range used for Bluetooth in Japan.

What is Piconet?

A collection of devices connected through Bluetooth technology in an ad hoc fashion.

What is a Bluetooth dongle?

A device that hangs outside of a computer, or phone to provide Bluetooth connection.

Why can Bluetooth equipment integrate easily in TCP/IP network?

Because Bluetooth uses wireless LAN standards IEEE for data transmission.

Which method is used for Data transfer?

Asynchronous Connectionless (ACL) is Data transfer method in Bluetooth

Give a generic description of Bluetooth?

Bluetooth is a low-cost, short-range (RF) links between mobile PCs, mobile phones and other portable devices. Bluetooth can transmit through solid, non-metal objects.

What are Bluetooth profiles?

A profile is a description of how to use a specification to implement a particular function. The International Standards Organization (ISO) first came up with the idea of profiles. In Bluetooth, there are several profiles available and they are arranged in a hierarchical fashion. For example, in order to use the headset profile, a device must also include the lower level profiles such as the serial port and general access profiles.

How does Bluetooth use frequency hopping for security?

Bluetooth picks a random frequency out of 79 and then hops around the range about 1600 times per second.

Why is Bluetooth called a cable replacement technology?

Bluetooth technology allows the creation of Personal Area Networks without cables or wires that are usual in home networks.