On This Page

This set of Wireless Sensor Networks (WSN) Multiple Choice Questions & Answers (MCQs) focuses on Wireless Sensor Networks Wsn Set 15

Q1 | To ensure the ___________of the system, the communication and computation should be localized to relevant sensors only
  • responsiveness
  • scalability
  • both
  • none of above
Q2 | For communication, the main consideration is that communication paths consists of many short hops can be___________ energy efficient than paths using a few long hops
  • more
  • less
  • equal
  • can not specify
Q3 | select the correct statement
  • aim of the routing protocols is to deliver packets to nodes specified by their geographic location
  • it may be more economical to use a equal transmission radius for nodes in areas of high node density
  • it may be more economical to use a larger transmission radius for nodes in areas of high node density
  • all are incorrect
Q4 | 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___________
  • traffic control
  • node failure
  • node migration
  • topology control
Q5 | The error in localization, measured as mean squared error , generally ___________as more sensor measurements are incorporated
  • decreases
  • increases
  • remains same
  • can not predict
Q6 | How the leader node maintains and migrates the collaborative processing group. Arrange the following steps in correct order a: sensors are selected to acquire new measurements using the sensor selection algorithm b: after the leader is elected, it initializes a belief state as uniform disk centered at its own location c: as the target moves, the sensors that did not previously detect may begin detecting
  • c b a
  • a c b
  • b c a
  • b a c
Q7 | In _______ forwarding, the routing table holds the address of just the next hop instead of complete route information.
  • next-hop
  • network-specific
  • host-specific
  • default
Q8 | The idea of address aggregation was designed to alleviate the increase in routing table entries when using ________
  • classful addressing
  • classless addressing
  • both a and b
  • none of the above
Q9 | A _______ routing table contains information entered manually.
  • static
  • dynamic
  • hierarchical
  • none of the above
Q10 | The input and output ports of a router perform the ________ layer functions of the router.
  • physical and data link
  • network
  • transport
  • none of the above
Q11 | In ________, each node maintains a vector (table) of minimum distances to every node.
  • path vector
  • distance vector
  • link state
  • none of the above
Q12 | The metric used by _______ is the hop count
  • ospf
  • rip
  • bgp
  • none of the above
Q13 | The Open Shortest Path First (OSPF) protocol is an intra-domain routing protocol based on _______ routing
  • distance vector
  • link state
  • path vector
  • none of the above
Q14 | In ______, the router forwards the received packet through only one of its interfaces.
  • unicasting
  • multicasting
  • broadcasting
  • none of the above
Q15 | In _______, the router may forward the received packet through several of its interfaces
  • unicasting
  • multicasting
  • broadcasting
  • none of the above
Q16 | In unicast routing, each router in the domain has a table that defines a ______ path tree to possible destinations
  • average
  • longest
  • shortest
  • none of the above
Q17 | In multicast routing, each involved router needs to construct a ________ path tree for each group.
  • average
  • longest
  • shortest
  • none of the above
Q18 | _________ broadcasts packets, but creates loops in the systems.
  • forwarding
  • flooding
  • backwarding
  • none of the above
Q19 | In RPF, a router forwards only the copy that has traveled the _______ path from the source to the router.
  • shortest
  • longest
  • average
  • none of the above
Q20 | RPF eliminates the ________ in the flooding process
  • forwarding
  • flooding
  • backwarding
  • none of the above
Q21 | Lokalization is nothiong but
  • determining the node’s geographical location
  • determining the node’s relative position
  • a or b
  • none of above