Cognitive Techniques MCQs

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

Cognitive Techniques MCQs | Page 1 of 7

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Q1.
The ____ function provides the share of ____ to the parameter to be optimised.

a.

subjective, a particular variable

b.

subjective, each variable

c.

objective, each variable

d.

objective, a particular variable

Discuss
Answer: (c).objective, each variable Explanation:The objective function provides the share of each variable to the parameter to be optimised.The objective function is given by the product of objective coefficient and decision variable. The physical layer is described in terms of objective functions for radio resource optimisation.
Q2.
Objective space is described using ____ set of ____ functions.

a.

one dimensional, objective

b.

multi-dimensional, objective

c.

one dimensional, exponential

d.

multi-dimensional, exponential

Discuss
Answer: (b).multi-dimensional, objective Explanation:Objective space comprises of total possible solutions to a problem. It is defined over multidimensional set of objective functions. Radio resources that define radio behaviour form the cognitive radio objective space.
Q3.
Which among the following is a potential goal for resource allocation optimisation?

a.

Resources are used only to satisfy needs

b.

Resources are kept in waiting

c.

Resources are permanently allocated for each task

d.

Resources are allocated with a permanent priority schedule

Discuss
Answer: (a).Resources are used only to satisfy needs Explanation:The utilization of resources by each node is monitored with a global perspective of optimising radio resources. It should be done without compromising the quality of service available to the user and avoid over usage of resources.
Q4.
Multi objective optimisation involves ____ over more than one criterion.

a.

integrating

b.

deriving equations

c.

encapsulating

d.

decision making

Discuss
Answer: (d).decision making Explanation:Multi objective optimisation involves decision making over more than one criterion. It deals with mathematical optimisation problems where optimisation of many objective functions has to be carried out simultaneously.
Q5.
Which among the following is not an alternative expression for Pareto optimal?

a.

Dominated

b.

Pareto efficient

c.

Non inferior

d.

Non dominated

Discuss
Answer: (a).Dominated Explanation:The optimisation of all objectives simultaneously is not possible as improvement of one objective might negatively affect another objective. A Pareto optimal solution is one where none of the objective functions may be improved without degrading another objective value.
Q6.
A set of Pareto optimal solutions is referred to as ____

a.

Pareto square

b.

Pareto box

c.

Pareto circle

d.

Pareto boundary

Discuss
Answer: (d).Pareto boundary Explanation:A set of Pareto optimal solutions is referred to asPareto boundary or Pareto frontier. The Pareto front of a multi-objective optimisation is bounded by nadir objective vector and ideal objective vector.
Q7.
Which among the following have direct dependency relationship?

a.

BER and bandwidth

b.

BER and SINR

c.

SINR and bandwidth

d.

Bandwidth and power

Discuss
Answer: (a).BER and bandwidth Explanation:Direct dependency involves the one to one relationship between two parameters. Indirect dependency involves creating links between parameters based on objective dependency. Bit error rate directly depends on bandwidth and is indirectly related to signal to noise ratio.
Q8.
Bit error rate depends on ____

a.

source

b.

route

c.

channel

d.

receiver

Discuss
Answer: (c).channel Explanation:Bit error rate is defined by the amount of bits received in error from the total number of bits received. Bit error rate primarily depends of channel type and modulation technique.
Q9.
Which among the following is a monitor parameter of BER?

a.

Noise power

b.

Transmission power

c.

Path loss

d.

Bandwidth

Discuss
Answer: (b).Transmission power Explanation:A monitor parameter is one which can be set by the cognitive radio. Meters are factors that can be measured and used for analysis but cannot be controlled. Transmission power is a monitor parameter. Noise and path loss are meters.
Q10.
Bit error rate calculation depends on ____ at the receiver.

a.

correlator

b.

signal to noise ratio

c.

analog to digital converter

d.

error detection codes

Discuss
Answer: (b).signal to noise ratio Explanation:Cognitive radio sets the transmitted power. The transmitted power, the path loss, and the noise floor can be used to compute received power and noise power. SNR is an important factor in this calculation.
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