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Computer Interview Questions Answers

BlueTooth Interview Questions Answers

Question - 11 : - Which method is used for Data transfer?

Answer - 11 : - Asynchronous Connectionless (ACL) is Data transfer method in Bluetooth

Question - 12 : - Why can Bluetooth equipment integrate easily in TCP/IP network?

Answer - 12 : - Because Bluetooth uses wireless LAN standards IEEE for data transmission.

Question - 13 : - What are Bluetooth profiles?

Answer - 13 : - 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.

Question - 14 : - What are some of the uses of Bluetooth?

Answer - 14 : - Depending on the Bluetooth profiles included on the device, Bluetooth technology has the capability to wirelessly synchronize and transfer data among devices. The Bluetooth audio capabilities can be used for headset and hands free applications. The exact functionality provided by a Bluetooth enabled device depends on the Bluetooth profiles included.

Question - 15 : - Which Bluetooth version uses adaptive frequency hopping? Why?

Answer - 15 : - In Version 1.2 Adaptive frequency hopping method is used, which improves resistance to radio interference, and provides higher transmission speed.

Question - 16 : - How does Bluetooth use frequency hopping for security?

Answer - 16 : - Bluetooth picks a random frequency out of 79 and then hops around the range about 1600 times per second.

Question - 17 : - Why is Bluetooth 2.0 better?

Answer - 17 : - The main features of Bluetooth Core Specification Version 2.0 + EDR are: • 3 times faster transmission speed (up to 10 times in certain cases) • Lower power consumption through reduced duty cycle • Simplification of multi-link scenarios due to more available bandwidth • Backwards compatible to earlier versions • Further improved BER (Bit Error Rate) performance

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