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 14 of 15

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Q131.
Which among the following caused the shift of complexity management from networks to cognitive radio?

a.

Introduction of multiple bands in radio

b.

Introduction of multiple modes in radio

c.

Introduction of multiple bands and multiple modes in radio

d.

Elimination of multiple bands in radio

Discuss
Answer: (c).Introduction of multiple bands and multiple modes in radio Explanation:The transition from software defined radio to cognitive radio is due to the availability of resources and technology that allow the incorporation of awareness, adaptability, and cognition skills in the radio. For example, cellular networks manage the wireless protocols for the user but the emergence of cognitive radio with the capability of supporting multiple bands and modes shift the responsibility of protocol management towards the radio itself.
Q132.
What is parallel virtual machine?

a.

Parallel virtual machine is a centralised computing system developed by joining a set of serial computers

b.

Parallel virtual machine is a distributed computing system developed by joining a set of parallel computers

c.

Parallel virtual machine is a centralised computing system developed by joining a set of parallel computers

d.

Parallel virtual machine is a distributed computing system developed by joining a set of serial computers

Discuss
Answer: (b).Parallel virtual machine is a distributed computing system developed by joining a set of parallel computers Explanation:A parallel virtual machine is a distributed computing system developed by joining a set of parallel computers into a single virtual machine. Complex computational problems may be solved more efficiently by utilizing collective power and memory of many computers. It may be used for resource allocation in cognitive radio.
Q133.
Which among the following may be inferred by analysing temporal properties of simultaneous processes?

a.

Time difference of transmission

b.

Timeout in fault tolerant systems

c.

Time of arrival in receiver

d.

Time difference of arrival in receiver

Discuss
Answer: (b).Timeout in fault tolerant systems Explanation:The examination of temporal properties of simultaneous processes may determine timeout in fault tolerant systems, duration control in real time systems, etc. It may be regarded as a logic-based approach for reasoning about time. It may be employed for planning activities in cognitive radio.
Q134.
Which among the following programming styles approach a problem as a series of constraints imposed on a possible solution?

a.

Linear programming

b.

Constraint programming

c.

Object oriented programming

d.

Aspect oriented programming

Discuss
Answer: (b).Constraint programming Explanation:Constraint programming approaches a problem as a series of constraints imposed on a possible solution. Constraint based scheduling is a method that uses constraint programming to solve scheduling problems. It may be used as a planning tool in cognitive radio.
Q135.
Which among the following is a characteristic observed in constraint programming?

a.

No changes can made on definition of the system

b.

Only independent variables are applied

c.

Strict norms to compute a value

d.

Definition of relationship between variables and constraints

Discuss
Answer: (d).Definition of relationship between variables and constraints Explanation:Constraint programming is applied to a group of problems thatpermit the conversion of a problem into variables. It should be possible to define the problem as a mathematical equation. A final model is constructed based on the relationship between the variables and the constraints. The model is used to compute the value of variables.
Q136.
What is the T250 model of Mitsubishi?

a.

Single-mode handset

b.

Dual-mode handset

c.

Three-mode handset

d.

Four-mode handset

Discuss
Answer: (c).Three-mode handset Explanation:The T250 model of Mitsubishi is a three-mode handset. It operates in Time Division Multiple Access (TDMA) mode on 850 or 1900 MHz, Advanced Mobile Phone System (AMPS) mode on 850 MHz, and in Cellular Digital Packet Data (CDPD) mode on 1900 MHz. It is a primitive example of multiband, multimode wireless device.
Q137.
Parallel virtual machine is implemented using homogeneous computers.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (b).False Explanation:Parallel virtual machine is implemented using a set of heterogeneous computers that work as a combined and flexible computational resource. Message-passing, task and resource management, and fault notification is accomplished by using a run time environment and library. Parallel virtual machine supports unicasting, multicasting, and broadcasting.
Q138.
Match the numbered blocks with the correct word to complete the cognition cycle.

a.

2 – Orient, 3 – Observe, 4 – Decide, 5- Act, 6 – Plan

b.

2 – Observe, 3 – Orient, 4 – Decide, 5- Act, 6 – Plan

c.

2 – Orient, 3 – Observe, 4 – Decide, 5- Plan, 6 – Act

d.

2 – Observe, 3 – Orient, 4 – Plan, 5- Decide, 6 – Act

Discuss
Answer: (d).2 – Observe, 3 – Orient, 4 – Plan, 5- Decide, 6 – Act Explanation:The major states or phases of the cognition cycle are observe, orient, plan, decide, and act respectively. The flow of control moves from observation to action. Certain situations demand for parallel operation of all states.
Q139.
Match the numbered paths with the correct word to complete the cognition cycle.

a.

1 – Normal, 2 – Immediate, 3 – Urgent

b.

1 – Normal, 2 – Urgent, 3 – Immediate

c.

1 – Immediate, 2 – Urgent, 3 – Normal

d.

1 – Immediate, 2 – Normal, 3 – Important

Discuss
Answer: (c).1 – Immediate, 2 – Urgent, 3 – Normal Explanation:The orient phase may omit the planning stage when immediate or urgent action is required. For example, a power failure directly invokes the act stage to save data.
Q140.
Which among the following options should replace the block labelled ‘A’?

a.

New state

b.

Act state

c.

Evaluate state

d.

Manipulate state

Discuss
Answer: (a).New state Explanation:New states are established when new models are introduced in addition to the existing internal structure. It influences observe phase and learn phase. New states are constantly included by integrating knowledge into RXML knowledge structures.
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