Next Generation Wireless Network MCQs

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

Next Generation Wireless Network MCQs | Page 16 of 33

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Q151.
Re-routing with cross-layer design is more efficient due to the availability of sensing information.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True Explanation:The sensing information from the physical layer helps the intermediary nodes to construct better routes. The triggering event for a packet loss can be rightly identified as link failure or node failure with sensing information.
Q152.
What is cross-layer design?

a.

Cross-layer design allows non adjacent layers to exchange information which are traditionally relevant to a layer itself

b.

Cross-layer design allows only adjacent layers to exchange information with each other

c.

Cross-layer design provides control of lower layer functions to the upper layer functions

d.

Cross-layer design provides control of upper layer functions to the lower layer functions

Discuss
Answer: (a).Cross-layer design allows non adjacent layers to exchange information which are traditionally relevant to a layer itself Explanation:Cross-layer design allows non-adjacent layers to exchange information which is traditionally relevant to a layer itself. By adapting cross-layer design, a global view of the radio framework and the surrounding environment can be obtained. It helps to eliminate problems that arise due to a lack of resource information at the time of transmission.
Q153.
Which among the following statements is false about cross-layer design?

a.

High quality of service can be provided by exchanging information among all layers of the protocol stack

b.

Diverse waveforms are employed for power and modulation process

c.

Cross-layer design helps to eliminate channel variations caused by blurring

d.

Cross-layer design makes channel connections unpredictable

Discuss
Answer: (d).Cross-layer design makes channel connections unpredictable Explanation:Cross-layer design creates diverse waveforms to establish predictable connections under the existing channel conditions and medium access control parameters. High quality of service can be provided by exchanging information among all layers of the protocol stack. Cross-layer design also helps to achieve higher throughput.
Q154.
Which among the following cannot be achieved by creating a mutual database?

a.

Administration of capacity

b.

Recovery of data

c.

Rapid access to data by every layer

d.

Limited resource usage

Discuss
Answer: (d).Limited resource usage Explanation:The construction of a mutual database is one of the design methodologies employed in the implementation of the cross-layer design. A mutual database is built by combining information obtained from all layers of the protocol stack. It helps to administrate resource allocation as well as help in the recovery of data particular to each layer.
Q155.
Which among the following is not a design methodology in the implementation of cross-layer design?

a.

Exchange of information among several layers during run time

b.

Storage of information in different storage structures

c.

Construction of mutual database with easy access for each layer in the protocol stack

d.

Construction of channel models to estimate the propagation of a signal in the channel environment

Discuss
Answer: (d).Construction of channel models to estimate the propagation of a signal in the channel environment Explanation:Cross-layer design requires the characteristic parameters of each layer to be made available to other layers of the protocol stack during run time. In order to achieve this, different degree of abstraction is required. This requires the development of new data structures such as constructing squares for storing information.
Q156.
Which among the following is a building unit of cross-layer hub?

a.

Cross-layer intra hub module

b.

Cross-layer interface

c.

Cross-layer scheduler

d.

Cross-layer director

Discuss
Answer: (a).Cross-layer intra hub module Explanation:Cross design involves the sharing of information among different layers of the protocol stack. For example, spectrum occupancy information gathered in the physical layer must be accurately transferred to the MAC layer through a proper interface. The units required to implement the cross-layer design are interfaces, controllers, schedulers, and inter hubs.
Q157.
Which among the following is not an expected result of cross-layer design?

a.

High end to end throughput

b.

Reduced network capacity

c.

Reduced interference

d.

Reduced power consumption

Discuss
Answer: (b).Reduced network capacity Explanation:Cross-layer design involves the exchange of information over various interfaces to achieve a better quality of service than possible by following the traditional layered approach. The exchange of information can be between physical and data link layer, data link and transport layer, network and transport layer, etc. Cross-layer design aims to achieve a high end to end throughput, increase the network capacity, optimize network utilization, reduce interference and power consumption.
Q158.
Which among the following is not an advantage of employing cross-layer design implementation?

a.

High accuracy of computation results required in algorithms

b.

Elimination of wasteful calculations

c.

High quality of service

d.

Better performance during spectrum handoff

Discuss
Answer: (d).Better performance during spectrum handoff Explanation:Cross-layer design improves the accuracy and the productivity of algorithms by extending the amount of information at hand. Cross-layer design helps to adjust in accordance with the varying resource availability. It eliminates computations that are performed due to a lack of communication between the layers of the protocol stack.
Q159.
Which layer performs adaptive modulation and coding?

a.

Network layer

b.

Transport layer

c.

Physical layer

d.

Data link layer

Discuss
Answer: (c).Physical layer Explanation:Adaptive modulation and coding is the process of adjusting signal parameters such as the modulation type, coding technique, and protocol parameters to the characteristics of the channel selected for transmission. The adaptive modulation system requires channel state information at the transmitter.
Q160.
Which among the following is not a function of the MAC layer in cognitive radio?

a.

Manage accessibility of assets

b.

Change client configuration

c.

Change density of design

d.

Choose multiple access techniques

Discuss
Answer: (d).Choose multiple access techniques Explanation:MAC layer in cognitive radio should manage the level of accessibility provided for resources of the radio. MAC layer should be aware of channel occupancy and surrounding spectrum environment to quickly handle changes in the environment and to mitigate loss produced due to mobility. MAC layer should have the capability to change design configuration.
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