Question 1

Which of the following is not a prohibitive factors for GPS in wireless sensor networks

Accepted Answer

A) power consumption 
B) accuracy maximum up to 15 meters 
C) cost and size 
D) need for line of sight (los) 
A) power consumption 
B) accuracy maximum up to 15 meters 
C) cost and size 
D) need for line of sight (los) B

Question 2

Select incorrect statement

Accepted Answer

A) hop corresponds to some distance in the network, thus more hops correspond to longer distance. 
B) geographic proximity guarantee the availability or the shortness of a route to the destination. 
C) number of hops from the destination is not available at all nodes.needs to be discovered 
D) two protocols can use the same metric, but perform the routing differently and with different efficiency. 
A) hop corresponds to some distance in the network, thus more hops correspond to longer distance. 
B) geographic proximity guarantee the availability or the shortness of a route to the destination. 
C) number of hops from the destination is not available at all nodes.needs to be discovered 
D) two protocols can use the same metric, but perform the routing differently and with different efficiency. B

Question 3

The node in the network, which produces the required data and is able to send it out to other nodes in the network is called as

Accepted Answer

A) data source 
B) data destination 
C) data forwarder 
D) data sink 
A) data source 
B) data destination 
C) data forwarder 
D) data sink A

Question 4

Node A and B 130 meters away and 5 hope separated. Node B and C 170 meters away and 6 hope separated and Node A and c 120 meters away and 5 hope separated. Then the mean hop length is___ meters.

Accepted Answer

A) 24 
B) 28.3 
C) 26 
D) 26.1 
A) 24 
B) 28.3 
C) 26 
D) 26.1

Question 5

Select incorrect statement

Accepted Answer

A) hop corresponds to some distance in the network, thus more hops correspond to longer distance. 
B) geographic proximity does not guarantee the availability or the shortness of a route to the destination. 
C) number of hops from the destination is not available at all nodes.needs to be discovered 
D) two protocols can use the same metric, perform the routing differently but has same efficiency. 
A) hop corresponds to some distance in the network, thus more hops correspond to longer distance. 
B) geographic proximity does not guarantee the availability or the shortness of a route to the destination. 
C) number of hops from the destination is not available at all nodes.needs to be discovered 
D) two protocols can use the same metric, perform the routing differently but has same efficiency.

Question 6

The node in the network, which requires the data and is able to receive it from other nodes in the network is called as

Accepted Answer

A) data source 
B) data destination 
C) data forwarder 
D) data sink 
A) data source 
B) data destination 
C) data forwarder 
D) data sink

Question 7

Select the incorrect statement.

Accepted Answer

A) while a normal data destination cannot change over time, the sink can. 
B) a sink can be mobile and change its position. 
C) sink may have additional broadband communication interface 
D) the individual nodes on the path are called as hops. 
A) while a normal data destination cannot change over time, the sink can. 
B) a sink can be mobile and change its position. 
C) sink may have additional broadband communication interface 
D) the individual nodes on the path are called as hops.

Question 8

From 20 localization measurements, 18 were inside a radius of 15 meters around the true position, while 2 was outside. This results in an accuracy of 15 meters with a precision of __________.

Accepted Answer

A) 0.2 
B) 0.8 
C) 95%. 
D) 0.9 
A) 0.2 
B) 0.8 
C) 95%. 
D) 0.9

Question 9

___________ delivers the message to all nodes in the network. Single source and all destinations

Accepted Answer

A) full network broadcast 
B) unicast 
C) multicast 
D) convergecast 
A) full network broadcast 
B) unicast 
C) multicast 
D) convergecast

Question 10

Range-free localization trying to find _____________ values distances or angles.

Accepted Answer

A) exact 
B) approximate 
C) actual 
D) none of these 
A) exact 
B) approximate 
C) actual 
D) none of these

Question 11

In WSN messages travel multiple hops, so if it has a________ reliability on each link, then the probability of a message transiting the entire network would be _________.

Accepted Answer

A) high, high 
B) high, low 
C) low, low 
D) low, high 
A) high, high 
B) high, low 
C) low, low 
D) low, high

Question 12

From 20 localization measurements, 19 were inside a radius of 15 meters around the true position, while 1 was outside. This results in an accuracy of 15 meters with a precision of __________.

Accepted Answer

A) 0.05 
B) 0.05263157894736842 
C) 95%. 
D) 0.05. 
A) 0.05 
B) 0.05263157894736842 
C) 95%. 
D) 0.05.

Question 13

___________ has several destinations. There is a single source, but multiple destinations of the data.

Accepted Answer

A) full network broadcast 
B) unicast 
C) multicast 
D) convergecast 
A) full network broadcast 
B) unicast 
C) multicast 
D) convergecast

Question 14

A dedicated node(s) in the network, which is the embedded destination of any data in this network is called as

Accepted Answer

A) data source 
B) data destination 
C) data forwarder 
D) data sink 
A) data source 
B) data destination 
C) data forwarder 
D) data sink

Question 15

Trilateration technique measures the _______to all anchors and Triangulation measures ________to all anchors,

Accepted Answer

A) angle, distance 
B) angle, angle 
C) distance, angle 
D) distance, distance 
A) angle, distance 
B) angle, angle 
C) distance, angle 
D) distance, distance

Question 16

Node A and B 130 meters away and 5 hope separated and Node A and c 120 meters away and 5 hope separated. Then the mean hop length is___ meters.

Accepted Answer

A) 24 
B) 25 
C) 26 
D) 50 
A) 24 
B) 25 
C) 26 
D) 50

Question 17

A _____________ is a tuple, containing all anchors which can be seen at this place and their signal strengths (RSSI or LQI).

Accepted Answer

A) footprint 
B) path print 
C) fingerprint 
D) handprint 
A) footprint 
B) path print 
C) fingerprint 
D) handprint

Question 18

_____________ has one source and one destination, which could be any nodes in the network

Accepted Answer

A) full network broadcast 
B) unicast 
C) multicast 
D) convergecast 
A) full network broadcast 
B) unicast 
C) multicast 
D) convergecast

Question 19

Hop Based Localization uses the ___________ to calculate the approximate distance to the anchor.

Accepted Answer

A) median hop length 
B) mean hop length 
C) minimum hop length 
D) maximum hop length 
A) median hop length 
B) mean hop length 
C) minimum hop length 
D) maximum hop length

Question 20

Location mules are another interesting approach to proximity schemes, where

Accepted Answer

A) there are installed anchors with an on-board gps 
B) a mobile node with an on-board gps 
C) a mobile node without an on-board gps 
D) there are installed anchors without an on-board gps 
A) there are installed anchors with an on-board gps 
B) a mobile node with an on-board gps 
C) a mobile node without an on-board gps 
D) there are installed anchors without an on-board gps

Which of the following is not a prohibitive factors for GPS in wireless sensor networks

Select incorrect statement

The node in the network, which produces the required data and is able to send it out to other nodes in the network is called as

Node A and B 130 meters away and 5 hope separated. Node B and C 170 meters away and 6 hope separated and Node A and c 120 meters away and 5 hope separated. Then the mean hop length is___ meters.

Select incorrect statement

The node in the network, which requires the data and is able to receive it from other nodes in the network is called as

Select the incorrect statement.

From 20 localization measurements, 18 were inside a radius of 15 meters around the true position, while 2 was outside. This results in an accuracy of 15 meters with a precision of __________.

___________ delivers the message to all nodes in the network. Single source and all destinations

Range-free localization trying to find _____________ values distances or angles.

In WSN messages travel multiple hops, so if it has a reliability on each link, then the probability of a message transiting the entire network would be _.

From 20 localization measurements, 19 were inside a radius of 15 meters around the true position, while 1 was outside. This results in an accuracy of 15 meters with a precision of __________.

___________ has several destinations. There is a single source, but multiple destinations of the data.

A dedicated node(s) in the network, which is the embedded destination of any data in this network is called as

Trilateration technique measures the _to all anchors and Triangulation measures __to all anchors,

Node A and B 130 meters away and 5 hope separated and Node A and c 120 meters away and 5 hope separated. Then the mean hop length is___ meters.

A _____________ is a tuple, containing all anchors which can be seen at this place and their signal strengths (RSSI or LQI).

_____________ has one source and one destination, which could be any nodes in the network

Hop Based Localization uses the ___________ to calculate the approximate distance to the anchor.

Location mules are another interesting approach to proximity schemes, where

Exploring the Challenges and Applications of Sensor Networks

Wireless Networking and Sensor Networks

Wireless Sensor Network Applications and Challenges

Exploring Different Aspects of Wireless Sensor Networks

Topics on Wireless Sensor Networks and Network Access Protocols

Multiple Access Techniques and Wireless Network Management

Wireless Networking and Radio Communication

Understanding Energy Optimization and Latency in Sensor Networks

Wireless Mac Protocols and Network Topology Control

Wireless Networking and Standards

Mac and PHY Standards and Zigbee Technology

Wireless Networking Technology and Protocols

Wireless Communication Technologies and Standards

Network Size, Tracking Capabilities, and Routing Protocols

Routing and Localization in Sensor Networks

Localization and Tracking Methods in Wireless Sensor Networks

Filters

Exam 17: Range-Free Localization Techniques and Node Network Terminology

Which of the following is not a prohibitive factors for GPS in wireless sensor networks

Select incorrect statement

The node in the network, which produces the required data and is able to send it out to other nodes in the network is called as

Node A and B 130 meters away and 5 hope separated. Node B and C 170 meters away and 6 hope separated and Node A and c 120 meters away and 5 hope separated. Then the mean hop length is___ meters.

Select incorrect statement

The node in the network, which requires the data and is able to receive it from other nodes in the network is called as

Select the incorrect statement.

From 20 localization measurements, 18 were inside a radius of 15 meters around the true position, while 2 was outside. This results in an accuracy of 15 meters with a precision of __________.

___________ delivers the message to all nodes in the network. Single source and all destinations

Range-free localization trying to find _____________ values distances or angles.

In WSN messages travel multiple hops, so if it has a________ reliability on each link, then the probability of a message transiting the entire network would be _________.

From 20 localization measurements, 19 were inside a radius of 15 meters around the true position, while 1 was outside. This results in an accuracy of 15 meters with a precision of __________.

___________ has several destinations. There is a single source, but multiple destinations of the data.

A dedicated node(s) in the network, which is the embedded destination of any data in this network is called as

Trilateration technique measures the _______to all anchors and Triangulation measures ________to all anchors,

Node A and B 130 meters away and 5 hope separated and Node A and c 120 meters away and 5 hope separated. Then the mean hop length is___ meters.

A _____________ is a tuple, containing all anchors which can be seen at this place and their signal strengths (RSSI or LQI).

_____________ has one source and one destination, which could be any nodes in the network

Hop Based Localization uses the ___________ to calculate the approximate distance to the anchor.

Location mules are another interesting approach to proximity schemes, where

Exploring the Challenges and Applications of Sensor Networks

Wireless Networking and Sensor Networks

Wireless Sensor Network Applications and Challenges

Exploring Different Aspects of Wireless Sensor Networks

Topics on Wireless Sensor Networks and Network Access Protocols

Multiple Access Techniques and Wireless Network Management

Wireless Networking and Radio Communication

Understanding Energy Optimization and Latency in Sensor Networks

Wireless Mac Protocols and Network Topology Control

Wireless Networking and Standards

Mac and PHY Standards and Zigbee Technology

Wireless Networking Technology and Protocols

Wireless Communication Technologies and Standards

Network Size, Tracking Capabilities, and Routing Protocols

Routing and Localization in Sensor Networks

Localization and Tracking Methods in Wireless Sensor Networks

Filters

In WSN messages travel multiple hops, so if it has a reliability on each link, then the probability of a message transiting the entire network would be _.

Trilateration technique measures the _to all anchors and Triangulation measures __to all anchors,