Cognitive Radio Basics MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Cognitive Radio Basics, 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 Basics 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 Basics mcq questions that explore various aspects of Cognitive Radio Basics problems. Each MCQ is crafted to challenge your understanding of Cognitive Radio Basics 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 Basics 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 Basics. 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 Basics knowledge to the test? Let's get started with our carefully curated MCQs!

Cognitive Radio Basics MCQs | Page 2 of 11

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Q11.
What does cost effectiveness mean in terms of military requirements?

a.

Backward compatibility

b.

Cheap replacement of existing radios

c.

Futuristic design

d.

Fast replacement of existing radios

Discuss
Answer: (a).Backward compatibility Explanation:Cost effectiveness means the new design must be able to communicate with previous versions of radios. The design must be compatible with radios which are meeting the end of their lifetime.
Q12.
Which of the following is not an advanced requirement in terms of Software Defined Radio?

a.

Adaptive networks

b.

Adaptive diversity

c.

Multiband

d.

Innovation signaling

Discuss
Answer: (c).Multiband Explanation:Adaptive networks, adaptive diversity, transparent bridging, channel modeling, innovation signaling are some advanced functional needs of SDR. These techniques can elevate the quality of voice, data and wireless services.
Q13.
Timeliness is the period between production of information and its availability to the subscriber.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True Explanation:Timeliness is one of key parameters of military applications. Timeliness is the period between production of information and its availability to the subscriber. Process and queuing delays increase the duration of this period.
Q14.
SINCGARS is a family of ____ radios.

a.

high frequency (HF)

b.

very high frequency (VHF)

c.

ultra-high frequency (UHF)

d.

super high frequency (SHF)

Discuss
Answer: (b).very high frequency (VHF) Explanation:Single-Channel Ground and Airborne Radio System consists of a family of radios that operate in the very high frequency band. They use frequency modulation. The radio is meant for command and control signals of voice and tactical data.
Q15.
Demand Assign Multiple Access is ____ function.

a.

a technical

b.

an administrative

c.

a multiplexing

d.

a literal

Discuss
Answer: (b).an administrative Explanation:Demand Assign Multiple Access (DAMA) is related to channel and resource allocation. It can be classified based on switching technique or control schemes. It is employed in AN/WSC – 3.
Q16.
In ____, the data signal is multiplied with a chip code data stream.

a.

Frequency Hopping Spread Spectrum (FHSS)

b.

Time Division Multiple Access (TDMA)

c.

Direct Sequence Spread Spectrum (DSSS)

d.

Frequency Division Multiple Access (FDMA)

Discuss
Answer: (c).Direct Sequence Spread Spectrum (DSSS) Explanation:The direct sequence spread spectrum is used to spread the transmitted signal over a bandwidth wider than the information bandwidth. It offers secure communication with reduce interference.
Q17.
Which among the following techniques use direct sequence spread spectrum?

a.

Code Division Multiple Access

b.

Frequency Division Multiple Access

c.

Time Division Multiple Access

d.

Orthogonal Frequency Division Multiple Access

Discuss
Answer: (a).Code Division Multiple Access Explanation:Code Division Multiple Access is a channel access method. It allows a user to occupy the allocated bandwidth for an entire period. This is accomplished by spread spectrum technology where each user is provided with a spreading code for transmission.
Q18.
Position Location Reporting System offers an accuracy of ____

a.

15-m

b.

13-m

c.

10-m

d.

20-m

Discuss
Answer: (a).15-m Explanation:Position Location Reporting System provides positioning, location, and reporting information for tactical commanders. It is an ultra-high frequency transceiver radio used for geo-location with 15-m accuracy.
Q19.
The ____ helps to achieve over-the-horizon transmission in position location reporting system.

a.

sub-master station

b.

subordinate station

c.

connecting station

d.

master station

Discuss
Answer: (d).master station Explanation:Position Location Reporting System consists of a computer controlled master station with cryptographic security. It assists the network in using the user units as relay for over-the-horizon transmission.
Q20.
Which among the following is not supported by AN/ARC-164 HaveQuickΙΙ?

a.

Air-to-air communication

b.

Ground-to-ground communication

c.

Air-to-ground communication

d.

Ground-to-air communication

Discuss
Answer: (b).Ground-to-ground communication Explanation:AN/ARC-164 HaveQuickΙΙ is a direct line of sight system operating in the ultra high frequency band. It uses amplitude modulated waveforms. It operates as a single channel or a frequency hopping radio.
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