Top 350+ Solved Wireless Sensor Networks (WSN) MCQ Questions Answer
Q. The main goal of the ___________is to reduce energy waste caused by idle listening, collisions, overhearing and control overhead
a. s-mac protocol
b. ieee802.15.4 standard
c. a and b
d. none of these
Q. The S-MAC protocol includes following major components
a. periodic listen and sleep
b. collision avoidance
c. overheating avoidance
d. all of above
Q. In the S-MAC protocol, ___________is designed to reduce energy consumption during the long idle time when no sensing events happen, by turning off the radio periodically
a. message passing
b. periodic listen and sleep
c. topology control
d. link control
Q. Examples of data attributes may include
a. node\s location
b. node\s type of sensors
c. certain range of values in a certain type of sensed data
d. all of above
Q. It may be more economical to use a smaller transmission radius for nodes in areas of high node density, w/o sacrificing adequate network connectivity. This is the issue of___________
a. topology control
b. traffic control
c. protocol control
d. link control
Q. Which multiple access technique is used by IEEE 802.11 standard for wireless LAN?
a. cdma
b. cdma/cd
c. cdma/ca
d. none of the above
Q. This is what happens if two devices on the same Ethernet network determine the network is free, but attempt to transmit data at exactly the same time.
a. overlap
b. crossover
c. collision
d. none of the above
Q. This describes how the Ethernet protocol regulates communication among connection points.
a. carrier sense multiple access/collision detect
b. discontinuous transmission
c. aggregator
d. wait and response
Q. 802.11 wireless networking uses what method as the media access method?
a. csma/cd
b. cts/rts
c. csma/ca
d. cscd/ca
Q. ____________ assigns a unique number to each IP network adapter called the MAC address.
a. media access control
b. metro access control
c. metropolitan access control
d. both b and c above
Q. In ________ each station sends a frame whenever it has a frame to send.
a. pure aloha
b. slotted aloha
c. both (a) and (b)
d. neither (a) nor (b)
Q. In pure ALOHA, the vulnerable time is ______ the frame transmission time.
a. the same as
b. two times
c. three times
d. none of the above
Q. In __________, each station is forced to send only at the beginning of the time slot.
a. pure aloha
b. slotted aloha
c. both (a) and (b)
d. neither (a) nor (b)
Q. In ________, a station monitors the medium after it sends a frame to see if the transmission was successful. If so, the station is finished. If, however, there is a collision, the frame is sent again.
a. csma/ca
b. csma/cd
c. either (a) or (b)
d. both (a) and (b)