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WorksheetsEC8071_CR_MODELEXAM-III (24.10.2020)_PART-B
Total questions: 15
Worksheet time: 15mins
Name
Class
Date
1.
1.Bands are allocated to radio access technology ____ in such a way that ____ is ____
a)
dynamically, capacity, minimized
b)
statically, interference, minimized
c)
dynamically, capacity, maximized
d)
statically, interference, maximized
2.
2. ____ routing involves broadcasting ____ for routing
a)
Proactive, search packets
b)
Reactive, search packets
c)
Proactive, routing table
d)
Reactive, routing table
3.
3. Which among the following is a quality not available in a software capable radio?
a)
Frequency hopping
b)
Networking capability
c)
Link establishment
d)
Programmable cryptography
4.
4.___________________ is a function of perception, observations, decisions, and actions.<br />
a)
Learning
b)
Swimming
c)
Driving
d)
Voting
5.
5. Which among the following occupies the bottom most position in inference hierarchy?
a)
Primitive stimuli
b)
Atomic symbols
c)
Primitive symbols
d)
Atomic stimuli
6.
6.The identification of “baseball” from words such as “hit”, “pitch”, and “run” is possible only by the functionality level of context cluster.
a)
true
b)
false
7.
7.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
8.
8.____________________________________________________ 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
9.
9.Cognitive radio will measure the interference environment through _______________________________ parameter and adjust their transmission such that the interference to Primary User is not above the regulatory limits in case of interference based sensing method.<br />
a)
Interference Temperature
b)
Interference Limit
c)
Interfrence floor
d)
Interference Ceiling
10.
10. Which among the following processes are combined to select protocol elements?
a)
Network information and media access control information
b)
Network information and application information
c)
Protocol element knowledge and application information
d)
Protocol element knowledge and network information
11.
11.__________________ uses the available white spaces by transmitting the data over the route with higher spectrum availability. <br />
a)
SPEAR
b)
SAMER
c)
SORP
d)
MSCRP
12.
12._____________________is a cross layer protocol so it identifies six system functions that implement the core functionality of spectrum aware routing.
a)
SPEAR
b)
SAMER
c)
SORP
d)
MSCRP
13.
13.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
14.
14.In_____________________PUE attack, an attacker’s objective is to maximize its own spectrum usage.<br />
a)
selfish
b)
mallicious
c)
common
d)
None of the above
15.
15.The objective of _______________________attack is to obstruct the DSA process of legitimate secondary users. That is,to prevent legitimate secondary users from detecting and using fallow licensed spectrum bands, causing denial of service.<br />
a)
selfish
b)
mallicious
c)
common
d)
None of the above
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