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WorksheetsEC8071_CR_MODEL EXAM_QUIZ_V_(15.10.2020)-EVENING-PART-B
Total questions: 10
Worksheet time: 10mins
Name
Class
Date
1.
1.In the _____________________________ means all nodes decide their spectrum access by themselves. <br />
a)
Centralized spectrum sharing
b)
Distributed spectrum sharing
c)
Cooperative spectrum sharing
d)
Non-cooperative spectrum sharing
2.
2. In ______________________________________-, each node only considers its own behaviors, that is to say, each node is selfish.
a)
Centralized spectrum sharing
b)
Distributed spectrum sharing
c)
Cooperative spectrum sharing
d)
Non-cooperative spectrum sharing
3.
3.______________is centralized routing scheme which is controlled by a single network entity called base station. Thus network topology can be quickly constructed among CR station by configuring cognitive base station as root.<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.The ________________________________ is started when nodes evaluate the workload of both accommodating the flow and redirecting it. Nodes choose the flow accommodation or flow redirection based on the evaluation results and neighborhood interaction.<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.For CR spectrum market players to make economically efficient deals,it requires a market environment that enables Incumbent users and CR users to arrive at _________________________.
a)
Maximal revenue
b)
Mutually acceptable Bargain
c)
Minimal Interference among Incumbent and CR Users
d)
All the above
8.
8. ________________________ plays an important role in enabling the micro auction mechanisms.
a)
TDMA
b)
SDMA
c)
CDMA
d)
OFDMA
9.
9. In _______________ Spectrum Auction Markets,Spectrum market players are forced only to buy bulk licenses for a huge amount of upfront cost and if they want to generate revenue out of it, they are allowed to lease their idle spectrum to new secondary users who need the spectrum access desperately.
a)
Rethinking Spectrum Auctions
b)
On-Demand Spectrum Auctions
c)
Economically Robust Spectrum Auctions
d)
Double Spectrum Auctions-For Multiparty trading
10.
10.The expanding of _________________ in CR network will expiries interference, as things will start moving with one place onto the next. <br />
a)
AI
b)
ML
c)
ROBOTICS
d)
IOT
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