NEW
Font size
S
M
L
XL
WorksheetsEC8071_CR_Weekly_Quiz_1_(21.07.2020)
Total questions: 20
Worksheet time: 20mins
Name
Class
Date
1.
1.Which of the following, gives the closest meaning to the term,'cognitive' in the context of Cognitive Radio?
a)
The ability to think and decide
b)
The ability to donate
c)
The ability to fight
d)
The ability to speak
2.
2.To access the licensed spectrum a user has to pay to the service provider. True of False?
a)
true
b)
false
3.
3. A Data transfer application that uses a local WiFi Network, is an example for ____________________.
a)
Licensed Spectrum Operation
b)
Unlicensed Spectrum Operation
c)
Regular Spectrum Operation
d)
Dedicated Spectrum Operation
4.
4. Among the following, which is an example for a licensed spectrum operation?
a)
Industrial Wireless Networks
b)
Wireless Doorbells
c)
Microwave oven and induction heaters
d)
TV and Radio Broadcast
5.
5. Unlicensed Spectrum operations has a certain limitation on ___________________.
a)
Transmission Duration
b)
Transmission Datarate
c)
Tranmission Protocols
d)
Transmission Power
6.
6.Licensed Spectrum bands are preferrably the higher frequency side of the radio spectrum
a)
true
b)
false
7.
7.Due to the lack of exclusivity among the users,in the unlicensed spectrum ,______________ becomes the biggest problem.
a)
interference
b)
signal jamming
c)
noise
d)
attenuation
8.
8.According to FCC,“A Cognitive Radio is a radio that can change its________________based on interaction with the environment in which it operates.”
a)
transmission medium
b)
modulation type
c)
transmitter or receiver parameters
d)
signal parameters
9.
9.______________is an advanced radio transceiver which can change its own performance by monitoring the communications system.
a)
Adaptive Radio
b)
Ameture Radio
c)
Super Radio
d)
Software Radio
10.
10. In ______________ most of its baseband operations are carried out through a software (or) by a piece of logical codes,instead of hardware components
a)
Software Defined Radio
b)
Software Denoted Radio
c)
Software Controlled Radio
d)
Hard-wired Radio
11.
11.Cognitive Radio constitutes the principles of Advanced Radio technologies and the SDR is their implemention platform. True or False?
a)
true
b)
false
12.
12.In the context of Cognitive Radio, the Licensed users are also known as_________________________.
a)
Personal Users
b)
Primary Users
c)
Predominant Users
d)
Passive Users
13.
13.In the context of Cognitive Radio, the Unicensed users are also known as________________.
a)
Senior Users
b)
Secondary users
c)
Intruding users
d)
Interfering users
14.
14.____________ are the momentarily unused portions of licensed spectrum, that can be temporarily allocated to users of other crowded parts of spectrum.
a)
Spectrum Worms
b)
Spectrum Sections
c)
Spectral Lobes
d)
Spectrum Holes
15.
15.Spectrum Holes are also called as______________.
a)
White Spaces
b)
Black Spaces
c)
Green Spaces
d)
Blue spaces
16.
16. The process of identifying the Spectrum Holes by the cognitive behavior of an advanced radio transceiver is known as____________.
a)
Spectrum Sensing
b)
Spectrum Looking
c)
Spectrum Supervision
d)
Spectrum Revision
17.
17.The Process of making a request to the nodes that holds the white spaces is called____________.
a)
Spectrum Negotiation
b)
Spectrum bargaining
c)
Spectrum Lending
d)
Spectrum Purchasing
18.
18.The Spectrum holes are created and removed dynamically in real-time.
a)
true
b)
false
19.
19.According to Joseph Mitola III,CR technology is the “intersection of personal wireless technology and _____________________”.
a)
Computational intelligence
b)
Common intelligence
c)
Creative Intelligence
d)
Critical Thinking skills
20.
20.__________ is another Software Radio Technology, in which few or all the physical layer functions of a radio transceiver are controlled by software.
a)
Software Defined Radio
b)
Software Denoted Radio
c)
Software Controlled Radio
d)
Hard-wired Radio
Reset
