Question 1

An inherent problems with S-MAC is

Accepted Answer

A) it does not allow sensor nodes to sleep for extensive amounts of time. 
B) internal clocks are not present. 
C) the internal clock of the nodes are not synchronized. 
D) the internal clock of the nodes are synchronized. 
A) it does not allow sensor nodes to sleep for extensive amounts of time. 
B) internal clocks are not present. 
C) the internal clock of the nodes are not synchronized. 
D) the internal clock of the nodes are synchronized. C

Question 2

The packet reception ratio (PPR) is depicted against the distance

Accepted Answer

A) at long distance between nodes, the prr increases 
B) at short distance between nodes, the prr decreases 
C) at long distance between nodes, the prr decreases 
D) ppr is independent of distance between nodes 
A) at long distance between nodes, the prr increases 
B) at short distance between nodes, the prr decreases 
C) at long distance between nodes, the prr decreases 
D) ppr is independent of distance between nodes C

Question 3

Berkeley MAC (B-MAC) was developed to tackle the problems of

Accepted Answer

A) t-mac 
B) s-mac 
C) lpl 
D) all of above 
A) t-mac 
B) s-mac 
C) lpl 
D) all of above B

Question 4

Select correct statement for addressing of node

Accepted Answer

A) address reveal a about the position of the node and its role. 
B) address reveal about the position of the node, but not about the role. 
C) address does not reveal anything about the position of the node.reveal something about the role. 
D) address does not reveal anything about the position of the node as well as its role. 
A) address reveal a about the position of the node and its role. 
B) address reveal about the position of the node, but not about the role. 
C) address does not reveal anything about the position of the node.reveal something about the role. 
D) address does not reveal anything about the position of the node as well as its role.

Question 5

In the clear communication zone communication is

Accepted Answer

A) at least a 90% 
B) almost impossible, but interference might still occur. 
C) interference free. 
D) from almost 100% to 0% 
A) at least a 90% 
B) almost impossible, but interference might still occur. 
C) interference free. 
D) from almost 100% to 0%

Question 6

Uplinks are also knowns as

Accepted Answer

A) reverse link 
B) bs link 
C) forward link 
D) ms link 
A) reverse link 
B) bs link 
C) forward link 
D) ms link

Question 7

incorrect statement is

Accepted Answer

A) the lower the received signal strength indicator -rssi, better the signal. 
B) link quality indicator (lqi) positive number ranging from approximately 110 to 50 
C) link quality indicator (lqi) positive number ranging from approximately 0 to 100 
D) packet reception ratio measured in fraction 
A) the lower the received signal strength indicator -rssi, better the signal. 
B) link quality indicator (lqi) positive number ranging from approximately 110 to 50 
C) link quality indicator (lqi) positive number ranging from approximately 0 to 100 
D) packet reception ratio measured in fraction

Question 8

What device is the wireless equivalent of a wired hub?

Accepted Answer

A) bridge 
B) repeater 
C) antenna 
D) access-point 
A) bridge 
B) repeater 
C) antenna 
D) access-point

Question 9

What is shadowing?

Accepted Answer

A) direct signal 
B) undirect signal 
C) signal strength 
D) signal range 
A) direct signal 
B) undirect signal 
C) signal strength 
D) signal range

Question 10

The type of access used in GSM technology is

Accepted Answer

A) tdma 
B) cdma 
C) ofdma 
D) none of the above 
A) tdma 
B) cdma 
C) ofdma 
D) none of the above

Question 11

A one-to-one communication between one source and one destination is classified as a _______ communication.

Accepted Answer

A) unicast 
B) multicast 
C) broadcast 
D) none of the above 
A) unicast 
B) multicast 
C) broadcast 
D) none of the above

Question 12

The purpose of error control is to

Accepted Answer

A) guarantee communication is error-free & in-sequence, 
B) guarantee communication is duplicate-free, and loss-free 
C) guarantee communication is error-free and loss-free 
D) a and b both 
A) guarantee communication is error-free & in-sequence, 
B) guarantee communication is duplicate-free, and loss-free 
C) guarantee communication is error-free and loss-free 
D) a and b both

Question 13

Forward Error Control-

Accepted Answer

A) should not try to prevent errors but only discover errors. 
B) should try to prevent errors only 
C) should try to prevent errors and avoid discovery of errors 
D) attempts to prevent errors instead of only detecting them 
A) should not try to prevent errors but only discover errors. 
B) should try to prevent errors only 
C) should try to prevent errors and avoid discovery of errors 
D) attempts to prevent errors instead of only detecting them

Question 14

A one-to-all communication between one source and all hosts on a network is classified as a _______ communication.

Accepted Answer

A) unicast 
B) multicast 
C) broadcast 
D) none of the above 
A) unicast 
B) multicast 
C) broadcast 
D) none of the above

Question 15

A one-to-many communication between one source and a specific group of hosts is classified as a _______ communication.

Accepted Answer

A) unicast 
B) multicast 
C) broadcast 
D) none of the above 
A) unicast 
B) multicast 
C) broadcast 
D) none of the above

Question 16

Timeout-MAC (T-MAC) letting the nodes timeout when nothing happens

Accepted Answer

A) during their sleep periods. 
B) during their active periods. 
C) before the active period. 
D) after the active period. 
A) during their sleep periods. 
B) during their active periods. 
C) before the active period. 
D) after the active period.

Question 17

The RTS and CTS frames in CSMA/CA ____ solve the hidden station problem. The RTS and CTS frames in CSMA/CA ____ solve the exposed station problem.

Accepted Answer

A) can; cannot 
B) cannot; can 
C) can; can 
D) cannot; cannot 
A) can; cannot 
B) cannot; can 
C) can; can 
D) cannot; cannot

Question 18

Long preamble used in Berkeley MAC (B-MAC) has to be send at least for duration of

Accepted Answer

A) wakeup time 
B) less than wakeup time 
C) sleeping time 
D) less than sleeping time 
A) wakeup time 
B) less than wakeup time 
C) sleeping time 
D) less than sleeping time

Question 19

In wireless distribution system

Accepted Answer

A) there is no access point 
B) there is no repeater in wireless network 
C) multiple aps are inter-connected with each other 
D) none of the above 
A) there is no access point 
B) there is no repeater in wireless network 
C) multiple aps are inter-connected with each other 
D) none of the above

Question 20

Centralized Topology Control

Accepted Answer

A) is very hard to perform 
B) requires significant communication overhead 
C) react well in case of changes. 
D) all are leading nodes 
A) is very hard to perform 
B) requires significant communication overhead 
C) react well in case of changes. 
D) all are leading nodes

An inherent problems with S-MAC is

The packet reception ratio (PPR) is depicted against the distance

Berkeley MAC (B-MAC) was developed to tackle the problems of

Select correct statement for addressing of node

In the clear communication zone communication is

Uplinks are also knowns as

incorrect statement is

What device is the wireless equivalent of a wired hub?

What is shadowing?

The type of access used in GSM technology is

A one-to-one communication between one source and one destination is classified as a _______ communication.

The purpose of error control is to

Forward Error Control-

A one-to-all communication between one source and all hosts on a network is classified as a _______ communication.

A one-to-many communication between one source and a specific group of hosts is classified as a _______ communication.

Timeout-MAC (T-MAC) letting the nodes timeout when nothing happens

The RTS and CTS frames in CSMA/CA solve the hidden station problem. The RTS and CTS frames in CSMA/CA solve the exposed station problem.

Long preamble used in Berkeley MAC (B-MAC) has to be send at least for duration of

In wireless distribution system

Centralized Topology Control

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 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

Range-Free Localization Techniques and Node Network Terminology

Filters

Exam 9: Wireless Mac Protocols and Network Topology Control

An inherent problems with S-MAC is

The packet reception ratio (PPR) is depicted against the distance

Berkeley MAC (B-MAC) was developed to tackle the problems of

Select correct statement for addressing of node

In the clear communication zone communication is

Uplinks are also knowns as

incorrect statement is

What device is the wireless equivalent of a wired hub?

What is shadowing?

The type of access used in GSM technology is

A one-to-one communication between one source and one destination is classified as a _______ communication.

The purpose of error control is to

Forward Error Control-

A one-to-all communication between one source and all hosts on a network is classified as a _______ communication.

A one-to-many communication between one source and a specific group of hosts is classified as a _______ communication.

Timeout-MAC (T-MAC) letting the nodes timeout when nothing happens

The RTS and CTS frames in CSMA/CA ____ solve the hidden station problem. The RTS and CTS frames in CSMA/CA ____ solve the exposed station problem.

Long preamble used in Berkeley MAC (B-MAC) has to be send at least for duration of

In wireless distribution system

Centralized Topology Control

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 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

Range-Free Localization Techniques and Node Network Terminology

Filters

The RTS and CTS frames in CSMA/CA solve the hidden station problem. The RTS and CTS frames in CSMA/CA solve the exposed station problem.