Cognitive Radio Architecture MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Cognitive Radio Architecture, a fundamental topic in the field of Cognitive Radio. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Cognitive Radio Architecture MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Cognitive Radio Architecture mcq questions that explore various aspects of Cognitive Radio Architecture problems. Each MCQ is crafted to challenge your understanding of Cognitive Radio Architecture principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Cognitive Radio tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Cognitive Radio Architecture MCQs are your pathway to success in mastering this essential Cognitive Radio topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Cognitive Radio Architecture. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Cognitive Radio Architecture knowledge to the test? Let's get started with our carefully curated MCQs!

Cognitive Radio Architecture MCQs | Page 12 of 15

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Q111.
Which among the following has to be carried out for reverse flow of knowledge?

a.

Training interfaces

b.

Hypothesis management

c.

Linear flow of signals

d.

Data management

Discuss
Answer: (a).Training interfaces Explanation:The interfaces have to be trained to ensure flow of knowledge can occur from inference hierarchy to the perception systems. This aids in maintaining and altering the internal structure of radio. For example, the vision subsystem and the audio subsystem exchange knowledge to take decision when there is a mismatch in one domain in a two way identification system.
Q112.
Which among the following situations require special training?

a.

Recognition of user indoor

b.

Recognition of user outdoors on a sunny day

c.

Recognition of user’s outdoors during a snowstorm

d.

Recognition of user indoor during a snowstorm

Discuss
Answer: (c).Recognition of user’s outdoors during a snowstorm Explanation:Visual recognition of user’s outdoors during a snowstorm requires additional processing than indoors as several matching cues might be hidden. This might limit the level of accessibility offered to the user as threshold condition will not be met due to reduced number of matches. Thus special training such as reverse flow of knowledge is required.
Q113.
Which among the following is not an example of noise?

a.

Pre-processing algorithm bias

b.

Truncation of low energy signal

c.

Binding mismatch

d.

Conversion error

Discuss
Answer: (c).Binding mismatch Explanation:In communication theory, noise refers to anything that hinders proper communication. It occurs in voice signals, images, videos, location estimates, etc. It is a critical aspect in industrial strength cognitive radio.
Q114.
Which among the following is a collection of subsets of a set that is closed under complement and closed under countable union?

a.

Sigma algebra

b.

Algebra

c.

Delta algebra

d.

Whole set

Discuss
Answer: (a).Sigma algebra Explanation:Sigma algebra on a set is a collection of subsets of a set that is closed under complement and closed under countable union. It is also known as measurable space. It is employed in hypothesis management to combine the amount of belief attached to each event as a function of the values allotted to the probability of each event.
Q115.
The transformation component converts atomic stimuli/symbols to primitive sequence.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True Explanation:The transformation component consists of units such as speech recogniser, low level software radio interface components which convert atomic stimuli/symbols into primitive sequence. Similarly components from immediate lower level sequence combine to form higher level sequences.
Q116.
Which among the following is not a component of hardware defined radio?

a.

Demodulator

b.

Antenna

c.

Filters

d.

Analog to digital converter

Discuss
Answer: (d).Analog to digital converter Explanation:A typical hardware defined radio used as a frequency modulated/ amplitude modulated broadcast receiver consists of radio hardware such as antenna, filters, and demodulators. The primary function is the conversion of radio signals into audio signals.
Q117.
Which among the following is an important characteristic of software radio?

a.

Digital demodulation and analog filtering

b.

Analog demodulation and digital filtering

c.

Analog demodulation and filtering

d.

Digital demodulation and filtering

Discuss
Answer: (d).Digital demodulation and filtering Explanation:The progression from hardware defined radio to software radio is marked by the introduction of the analog-to-digital converter and digital-to-analog converter in radio. An ideal software radio performs operations such as modulation, demodulation, frequency translation, and filtering digitally.
Q118.
Which among the following represents the scale of spectrum band likely to be accessed by software defined radio?

a.

800 MHz – 900 MHz

b.

800 MHz – 850 MHz

c.

30 MHz – 2.5 GHz

d.

30 MHz – 250 MHz

Discuss
Answer: (c).30 MHz – 2.5 GHz Explanation:The software defined radio desirably operates over a large range of frequencies that cover various bands of the spectrum. The radio should be capable of supporting various applications such as TV bands, air traffic control bands, industrial medical and scientific bands, etc. For example, 30 MHz – 2.5 GHz has a bandwidth of 2.47 GHz which is most suitable for the spectrum requirements of cognitive radio.
Q119.
What is term used to refer to a handset with multiple single band RF chips?

a.

Pocket radio

b.

Multi-set radio

c.

Slice radio

d.

Fixed radio

Discuss
Answer: (c).Slice radio Explanation:The nature of RF devices such as antennas and filters normally support narrowband RF synthesis and intermediate frequency conversion. Wideband operation drives up cost and power consumption. One approach involves the installation of multiple single band RF chips in a handset. This handset is called as a slice radio or a Velcro radio.
Q120.
Which among the following terms define the design space used to describe the development of software defined radio?

a.

Digital access bandwidth and programmability

b.

Digital access bandwidth and feasibility

c.

Programmability and feasibility

d.

Analog access bandwidth and feasibility

Discuss
Answer: (a).Digital access bandwidth and programmability Explanation:The software defined radio design space consists of a series of practical levels that represent the growth from hardware defined devices to ideal software defined radio. The design space is a plot between digital access bandwidth and programmability. The development of devices is due to increased availability and capability of resources.
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