Wireless Sensor Networks Mock Test

1. In a typical sensor network, each sensor node operates unethered and has a microprocessor and a small amount of memory for signal processing and task scheduling

2. A wireless extension to a wired network can eliminate the need for new __________ to be installed.

3. What is the networking device used to forward packets on a packet-switching network?

4. Each node is equipped with

5. What is the acronym used to indicate a network that provides support for a single user in a 10-meter range?

6. What signal transmission method intersperses message segments from multiple sessions into a single medium?

7. The size of wireless sensor system is limited mostly by

8. In Bluetooth, multiple ________ form a network called a _________.

9. What is the term used to describe the height of a radio wave?

10. application of WSN for Infrastructure protection is

11. Which of the RF multiplexing methods uses times slices to carry multiple data streams on a single carrier?

12. In Bluetooth, the _______ layer is roughly equivalent to the Physical layer of the Internet model.

13. environmental monitoring is carried out using WSN for

14. The __________ is designed to radiate the aura of the electromagnetic field created by the electric current.

15. In Bluetooth, the current data rate is ____Mbps

16. select the correct statement

17. The Bluetooth network is called as

18. Following are application areas of wireless sensor networks

19. The _____ layer is roughly equivalent to the MAC sub layer in bluetooth.

20. The portion of the electromagnetic spectrum occupied by a signal is called ________

21. Each sensor has a finite sensing range, determined by the___________ floor of the sensor

22. Following are application areas of wireless sensor network

23. A wireless network provides immediate connection anywhere in the wireless range of its __________.

24. What is the method of access in bluetooth?

25. Which of the following is a collection of many separate networks?

26. A sensor network is designed to perform a set of high level information processing tasks such as

27. A___________ sensing system is inherently more robust against individual sensor node or link failures, because of redundancy in the network

28. GPS is an acronym for Global __________ System.

29. The challenges we face in designing sensor network systems and applications include

30. What WLAN device provides communications management services to wireless workstations?

31. Which one of the following frequency bands is used for cordless phones?

32. Bluetooth is a _______ technology that connects devices (called gadgets) in a small area.

33. WiMAX provides you?

34. They can even use other services such as location tracking using the __.

35. In Bluetooth, the _________ sublayer, is roughly equivalent to the LLC sublayer in LANs.

36. Sensors can be used

37. Responsibilities of the data link layer are __

38. Wireless networks are computer networks that use radio frequency channels as their __ for communication.

39. Ad-hoc mode of wireless network is also known as __________ mode.

40. Network for sensor networks is ____centric but not ______centric

41. Which one of the following is not a consideration when deciding between a WLAN and a wired LAN beyond the network medium?

42. ___________routes user queries or commands to appropriate nodes in a sensor network

43. Densor sensor field---------- the odds of detecting a signal source within the range

44. __________ communications mode means that it can both transmit and receive, but only one action at a time.

45. Within the coverage range, nodes communication is by__________

46. What is the receive signal strength indicator used to measure?

47. The radio communication spectrum is divided into bands based on ______.

48. The S-MAC protocol includes following major component

49. Which of these is not true for Time-Division Duplex (TDD)?