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Exam 3: Wireless Sensor Network Applications and Challenges

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Question 1

Multiple Choice

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___________sensors instrumented in a building can detect the direction and magnitude of a quake and provide an assessment of the building safety

A) seismic
B) acoustic
C) acoustic or seismic
D) position

E) A) and D)
F) A) and C)

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Question 2

Multiple Choice

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The challenges in sensor network databases A: limited storage on nodes and high communication costs imply that older data has to be discarded B: sensor tasking interacts in numerous ways with the sensor database system

A) a only
B) b only
C) neither a nor b
D) a and b both

E) None of the above
F) C) and D)

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Question 3

Multiple Choice

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In __________sensor network systems, we must balance the information contribution of individual sensors against the cost of communicating with them

wireless sensor networks are

select the correct statement

In__________ database systems, data storage may be allocated among several geographical separated locations, connected by a communications network

___________allows the same time or frequency division multiplexing to be reused across non overlapping clusters

Following are application areas of wireless sensor network A: asset and warehouse management B: automotive C: building monitoring and control D: environmental monitoring

Time difference caused by the lack of a common time origin are referred to as___________

__________are nodes that aid in passing traffic from one cluster to another

The size of wireless sensor system is limited mostly by A: the cost of maintaining communication links B: the cost of sensor hardware

In wireless sensor network

Each sensor in a sensor network takes___________ measurements of physical phenomena such as heat, sound, light ,pressure or motion

_____sensor can be tasked to look for animals of a particular size and color. _____sensor can be tasked to detect the presence of a particular type of vehicle

In wireless sensor network

Following are application areas of wireless sensor networks A: health care B: industrial process control C: military battlefield awareness D: security and surveillance

Wireless Sensor Networks are networks that consists of sensors which are A: distributed in an ad hoc manner. B: These sensors work with each other to sense some physical phenomenon and then the information gathered is processed to get relevant results. C: Wireless sensor networks consists of protocols and algorithms with self-organizing capabilities.

The applications of WSN are:

The challenge in sensor network databases is/ are

The more capable nodes can naturally play the role of __________