Wireless Sensor Networks Wsn Set 3
On This Page
This set of Wireless Sensor Networks (WSN) Multiple Choice Questions & Answers (MCQs) focuses on Wireless Sensor Networks Wsn Set 3
Q1 | The more capable nodes can naturally play the role of __________
- cluster leader
- cluster node
- cluster head
- cluster master
Q2 | In wireless sensor network
- no special master clocks are available
- connections are ephemeral
- communication delays are inconsistent and unpredictable
- all of above
Q3 | In wireless sensor network
- communication delays are consistent and predictable
- no special master clocks are available
- neither a nor b
- a and b both
Q4 | Time difference caused by the lack of a common time origin are referred to as___________
- clock phase difference
- clock bias
- neither a nor b
- a and b both
Q5 | Drawbacks of GPS to use in WSN node is
- gps receivers are difficult to incorporate into every sensor node due to cost, power consumption, large form factors
- gps systems do not work indoor or under ford foliage or in other expectable conditions
- neither a nor b
- a and b both
Q6 | select the correct statement
- the purpose of a sensor system is to obtain information that is as extensive and detailed as possible about the unknown parts of the world state
- the main idea of information based sensor tasking is to base sensor selection decisions on information content as well as constraints on resource consumption, latency and other costs
- a and b both correct
- a and b both incorrect
Q7 | In __________sensor network systems, we must balance the information contribution of individual sensors against the cost of communicating with them
- centralized
- distributed
- centralized as well as distributed
- none of above
Q8 | From a data storage point of view ,one may think of a sensor network as a distributed database that
- collects physical measurements about the environment
- indexes them
- serves queries from users and other applications external to or from within the network
- all of above
Q9 | In__________ database systems, data storage may be allocated among several geographical separated locations, connected by a communications network
- centralized
- distributed
- centralized as well as distributed
- none of above
Q10 | The challenge in sensor network databases is/ are
- the system as a whole is highly volatile
- relational tables are not static since new data is continuously being sensed
- the high energy cost of communication encourages in-networking processing during query execution
- all of the above
Q11 | 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 only
- b only
- neither a nor b
- a and b both
Q12 | The size of wireless sensor system is limited mostly by A: the cost of maintaining communication links B: the cost of sensor hardware
- a
- b
- both
- neither a nor b
Q13 | Following are application areas of wireless sensor network a: asset and warehouse management b: automotive c: building monitoring and control d: environmental monitoring
- a b c
- b c d
- a c d
- a b c d
Q14 | Following are application areas of wireless sensor networks a: health care b: industrial process control c: military battlefield awareness d: security and surveillance
- a b c
- b c d
- a c d
- a b c d
Q15 | Sensors may be used a: to monitor and track assets such as trucks or other equipment b: to manage assets for industries such as oil and gas, utility , and aerospace
- a
- b
- both
- neither a nor b
Q16 | Sensors can be used a: to monitor conditions and movements of wild animals or plants in wildlife habitats b: to monitor air quality and track environmental pollutants, wildfires or other natural or manmade disasters c: to monitor biological or chemical hazards to provide early warnings d: to monitor earthquake
- a b c
- a b c d
- a c d
- b c d
Q17 | ___________sensors instrumented in a building can detect the direction and magnitude of a quake and provide an assessment of the building safety
- seismic
- acoustic
- acoustic or seismic
- position
Q18 | The applications of WSN are:
- monitoring of objects only.
- monitoring of an area only.
- monitoring of both area and objects
- all of above
Q19 | 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.
- a and b
- b and c
- a , b and c
- a and c
Q20 | Communication paradigm used in wireless sensor networks and in ad-hoc network are respectively
- point to p[oint , point to poiunt
- broadcast , point to point
- point to point , broadcast
- broadcast , broadcast
Q21 | wireless sensor networks are
- data centric
- address centric
- both
- none opf above