WorksheetsEC8071_CR_MODEL EXAM_QUIZ_V_(15.10.2020)-MORNING-PART-B
Total questions: 10
Worksheet time: 10mins
Name
Class
Date
1.
1.The _________________________________ means all nodes (i.e. users) in the network send their spectrum sensing information to the central control unit, and the control unit draws spectrum allocation mapping. <br />
a)
Centralized spectrum sharing
b)
Distributed spectrum sharing
c)
Cooperative spectrum sharing
d)
Non-cooperative spectrum sharing
2.
2.____________________________________________________ means a Cognitive Users accesses the network via unused spectrum hole. It actually realizes time division multiplexing of a spectrum between Licensed Users s and Cognitive Users s, so the interference with Licensed Users is the least. <br />
a)
Overlay spectrum sharing
b)
Underlay spectrum sharing
c)
Cooperative spectrum sharing
d)
Non-cooperative spectrum sharing
3.
3.___________________________uses dynamic source routing (DSR) mechanism for route discovery in which source node broadcasts an RREQ message with new RREQ_ID and attaches its band radio usage table (BRT). <br />
a)
MRSA PROTOCOL
b)
LOCAL COORDINATION BASED MULTIPATH ROUTING PROTOCOL
c)
REACTIVE SOURCE BASED MULTIPATH ROUTING PROTOCOL
d)
TREE BASED ROUTING PROTOCOL
4.
4.In _____________________routing technique source specifies how the data travels across the network. Path to destination node is computed by the source node.<br />
a)
MRSA PROTOCOL
b)
LOCAL COORDINATION BASED MULTIPATH ROUTING PROTOCOL
c)
REACTIVE SOURCE BASED MULTIPATH ROUTING PROTOCOL
d)
TREE BASED ROUTING PROTOCOL
5.
5.If the packet arriving rate is higher than the rate at which the packets are _______________, the receiving buffer will be fully occupied by packets waiting to be processed.<br />
a)
removed from the buffer
b)
keep on storing in the buffer
c)
buffer is closed
d)
transmission is stopped
6.
6. To detect errors throughout a frame _________________error control mechanism is preferred.
a)
CHECKSUM
b)
CYCLIC REDUNDANCY CHECK
c)
VERTICAL REDUNDANCY CHECK
d)
FEC & RETRANSMISSION
7.
7.An efficient and truthful spectrum auction is one that is truthful and maximizes the ________________ subject to the interference constraints
a)
profit to Incumbant users
b)
efficiency of spectrum usage
c)
quick adaption ability to the fallow spectrum spaces
d)
None of the above
8.
8.The next-generation public safety communication equipment is expected to provide advanced features, like __________________.
a)
sensors for biomedical and environmental signals
b)
sophisticated networking mechanismsthat suppost robust use
c)
robotic process automation support
d)
AI enabled devices to manage the spectrum occupancy
9.
9.CRN-based IoT can seek channels ______________________ in an astute way for efficient communication.<br />
a)
that are very costly
b)
free of interference
c)
free of intrusion
d)
that are readily occupyable
10.
10.The ________________ are in charge of keeping up the methods for information exchange to the real world objects, observing the condition and catching the information from the things. <br />
a)
virtual objects
b)
volatile objects
c)
vulnerable objects
d)
wisdom objects
100 %
