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 11 of 15

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Q101.
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.
Q102.
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.
Q103.
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.
Q104.
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.
Q105.
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.
Q106.
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.
Q107.
Which among the following is considered as the most power-efficient device?

a.

ASIC

b.

FPGA

c.

DSP

d.

GPP

Discuss
Answer: (c).DSP Explanation:Digital signal processors are simple to program, cost-effective, and power-efficient when compared to other devices such as ASIC and FGPA. However small memory and complicated instruction set architecture can increase the re-programmability cost of a digital signal processor.
Q108.
How are the general purpose processors classified?

a.

Based on memory

b.

Based on bus

c.

Based on interface

d.

Based on instruction set

Discuss
Answer: (d).Based on instruction set Explanation:Complex Instruction Set Computer processor consists of a single instruction to carry out loading, evaluation, and storing operation. Reduced Instruction Set computer processor consists of a series of instructions to carry out loading, evaluation, and storing operation. The general purpose processors are commonly classified based on the instruction set.
Q109.
Which among the following is not an API of the software communication architecture put forth by the SDR forum?

a.

Physical

b.

MAC

c.

Security

d.

Transport

Discuss
Answer: (d).Transport Explanation:An application programming interface is a computing interface that connects to a software component or a system. Components may access the API as per the terms presented by the API itself. In software communication architecture, API determines access to the physical layer, to the logical link layer, to the medium access control layer, to the security features, and to the input/output components.
Q110.
Where does black processing occur in software communication architecture?

a.

Black processing occurs between antenna and RF channel

b.

Black processing occurs between antenna and RF conversion

c.

Black processing occurs between RF conversion and INFOSEC module

d.

Black processing occurs between antenna and INFOSEC module

Discuss
Answer: (d).Black processing occurs between antenna and INFOSEC module Explanation:Military radios assign the term ‘red’ for secret information. The term ‘black’ is used to refer to protected or encrypted information during transmission. Black processing generally takes place between the antenna and INFOSEC module, particularly the decryption process.
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