Bluetooth Technology MCQs

Bluetooth Technology MCQs

Try to answer these 30 Bluetooth Technology MCQs and check your understanding of the Bluetooth Technology subject.
Scroll down and let's begin!

1: If a cell-phone with Bluetooth version 2.0 tries to pair with a computer with Bluetooth version 1.2, which of the following types of paring will be used in such a situation?

A.   Legacy pairing

B.   Secure simple pairing

C.   Both a and b 

2: The Bluetooth devices which fall under Class 2 have maximum output power of _________.

A.   0 dBm

B.   2 dBm

C.   4 dBm

D.   10 dBm

E.   20 bBm

3: In which of the following types of devices, is Bluetooth used?

A.   Fixed

B.   Mobile

C.   Both a and b. 

A.   low energy link layer (LELL)

B.   logical link control and adaptation protocol (L2CAP)

C.   object exchange protocol (OBEX)

D.   low energy attribute protocol (ATT)

E.   service discovery protocols (SDP) 

5: The ______________ Profile describes the process of control over a remote printing device, its printing process, and the process of transfer of images from it.

A.   Basic Printing

B.   Common ISDN Access

C.   Basic Imaging

D.   File Transfer 

6: In Bluetooth communication, the Adaptive Frequency Hopping spread spectrum (AFH) is used for __________

A.   transmitting data in large quantities.

B.   avoiding crowded frequency bands so that interference with other devices is eliminated.

C.   faster transmission of data between devices.

D.   transmitting only video data between devices 

7: Which of the following is the advantage of Bluetooth technology over HomeRF?

A.   Bluetooth offers higher data rate as compared to HomeRF.

B.   Interference in Bluetooth is less as compared to HomeRF.

C.   The streaming media support provided by Bluetooth is better as compared to HomeRF.

D.   The power consumption of Bluetooth is less as compared to HomeRF.

E.   The range of operation of Bluetooth is higher as compared to HomeRF.

8: The working of Bluetooth is based upon the creation of _____________.

A.   Local Area Network (LAN)

B.   Metropolitan Area Network (MAN)

C.   Wide Area Network (WAN)

D.   Personal Area Network (PAN) 

9: Which of the following processes helps the master Bluetooth device know the address of the slave Bluetooth device?

A.   Paging

B.   Connection

C.   Inquiry

D.   Hopping

10: Transmission is initiated in a specified time-slot by a master device in the _______ mode.

A.   active

B.   sniff

C.   park

D.   hold 

11: Which of the following processes prevents eavesdropping on information by ensuring that data is accessed and viewed only by authorized devices?

A.   Authentication

B.   Authorization

C.   Confidentiality 

12: Which of the following is true about piconet in Bluetooth communication?

A.   Maximum five devices can communicate with one master device and all devices share master's clock.

B.   Maximum ten devices can communicate with two master devices and two different clocks are used for synchronization.

C.   Maximum seven devices can communicate with one master device and all devices share master's clock.

D.   Maximum fifteen devices can communicate with two master devices and two different clocks are used for synchronization. 

13: Power control is compulsory for which of the following power class(es) of Bluetooth devices?

A.   Class 1

B.   Class 2

C.   Class 3

D.   Both a and c.

E.   Both b and c. 

14: Bluejacking is the process of __________________.

A.   sending unsolicited messages without any phone number and name using Bluetooth technology

B.   sending messages with name and phone number using Bluetooth technology

C.   unauthorized access to information on someone's phone using Bluetooth technology

D.   gaining unauthorized access to someone's phone and using its features using Bluetooth technology 

15: When the address of a recipient is clear, a Bluetooth device sends a/an ______ message to another Bluetooth device to initialize the connection.

A.   inquiry

B.   page

C.   connection 

16: A standard for accessing the Internet via a Bluetooth system is listed under the __________ Profile.

A.   Common ISDN Access

B.   Service Port

C.   Generic Object Exchange

D.   Dial-Up Network 

17: Which of the given diagrams represents a scatternet operation used in Bluetooth?

A.   i

B.   ii

C.   iii

D.   iv 

18: The effective range for Class 3 Bluetooth devices is

A.   1 meter

B.   10 meters

C.   20 meters

D.   50 meters

E.   100 meters

19: Which two of the following hardware modules are used in Bluetooth technology?

A.   Gamma Module

B.   Link Module

C.   Radio Module

D.   X-ray Module 

20: Which of the following is the frequency band in which Bluetooth Technology operates?

A.   2500- 2650 MHz

B.   2400-2485 MHz

C.   2300-2340 MHz

D.   2800- 2865 MHz

E.   2600-2695 MHz 

21: Which of the following is/are not true about pairing between Bluetooth devices?

A.   All types of Bluetooth devices can be paired.

B.   Some level of user interaction is involved in pairing process.

C.   Video data cannot be sent between any type of paired devices.

D.   The bond formed by pairing process can be removed any time by the user. 

22: In ___________________, numeric comparison is performed. A six-digit code is displayed on both the devices. The code is matched by the user and after successful comparison, the user can confirm pairing.

A.   secure simple pairing (SSP)

B.   legacy pairing

C.   secure simple pairing as well as legacy pairing 

23: Which two of the following factors contribute to lower power consumption in Bluetooth devices?

A.   Programmable packet length

B.   High data rate

C.   Power-saving mode

D.   Battery backup 

24: Which of the following kinds of information are transmitted on demand by a Bluetooth device in discoverable mode to another Bluetooth device?

A.   Device class

B.   Device name

C.   48-bit address of device

D.   Port number

25: State whether the below given statement is true or false.
Bluetooth offers a higher throughput and speed as compared to Infrared technology.

A.   True

B.   False 

26: In the Hands-Free Profile (HFP), the connectivity to the source of voice data is provided by the _________.

A.   Audio Gateway (AG) device

B.   Server

C.   Hands-Free Unit (HF) device

D.   Initiator 

27: Which of the following is not correct regarding Bluetooth technology?

A.   It cannot handle the simultaneous transmission of data and voice.

B.   The range is application specific in Bluetooth technology.

C.   It cannot be used to exchange data over very long distances.

D.   It provides multi-vendor compatibility 

28: Which of the following is true about Bluetooth communication?

A.   Quasi optical path must be viable and the devices should be in the line of sight.

B.   The devices that are participating in the communication should be in the line of sight though the quasi optical path is not required to be viable.

C.   The devices participating in the communication are not required to be in the line of sight though the quasi optical path should be viable.

D.   The devices participating in the communication are neither required to be in the line of sight nor the quasi optical path is required to be viable.

29: Which of the following are the applications of Bluetooth technology?

A.   Wireless communication between mobile phone and hands free headset.

B.   Wireless communication in low bandwidth application where higher USB bandwidth is required.

C.   Wireless bridge between two Ethernet networks.

D.   Long range transmission of data from medical devices to dedicated telehealth devices. 

30: Which of the following factors does not effect the effective range of Bluetooth devices?

A.   Battery conditions

B.   Material coverage

C.   Access point

D.   Antenna configuration