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 3 of 33

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Q21.
Which among the following is true about xG users in an unlicensed spectrum band?

a.

xG user has equal rights to access the spectrum

b.

xG user vacate the spectrum band upon arrival of the primary user

c.

xG user vacate the spectrum band upon arrival of another xG user

d.

xG users compete for the position of primary user

Discuss
Answer: (a).xG user has equal rights to access the spectrum Explanation:In the unlicensed spectrum band, each user has the same right to access the spectrum bands. The xG users present in one particular area may use the same portion of the spectrum band for communication.
Q22.
Which among the following is required for effective use of spectrum in an unlicensed spectrum band?

a.

Spectrum sharing algorithms

b.

Scheduling algorithms

c.

Planning algorithms

d.

Decision-making algorithms

Discuss
Answer: (a).Spectrum sharing algorithms Explanation:xG users compete to access the unlicensed spectrum band since every user has an equal right to access the spectrum. Intelligent spectrum sharing algorithms ensure effective spectrum usage and good quality of service. If many xG networks are present, impartial sharing on a network level is required.
Q23.
Which among the following may not be achieved by using xG networks for military applications?

a.

Select intermediate frequency bandwidth

b.

Improve security

c.

Select compatible modulation scheme

d.

Reduce interference

Discuss
Answer: (d).Reduce interference Explanation:xG networks allow the selection of intermediate frequency bandwidth, and compatible modulation and coding techniques. It is capable of adapting to the changing radio environment of a battlefield. xG networks also carry out secure spectrum handoff.
Q24.
Which among the following is a requirement of emergency networks?

a.

Quality of service

b.

Determine of charges for usage

c.

Minimum latency

d.

Parsing incoming information

Discuss
Answer: (c).Minimum latency Explanation:Emergency networks require minimum latency, and a large radio spectrum to accommodate a high volume of traffic including voice, video, and data. Since xG networks do not rely entirely on fixed infrastructure for communication and are capable of utilizing unused spectrum bands, they are used for reliable communication under emergency conditions.
Q25.
Which among the following is a requirement of a cognitive mesh network?

a.

Large spectrum

b.

Quality of service

c.

Security

d.

Effective modulation scheme

Discuss
Answer: (a).Large spectrum Explanation:Cognitive mesh networks require high capacity to support applications that require high throughput. xG networks are capable of accessing large portions of the spectrum and can support the demand generally present in dense urban areas. Cognitive mesh networks are used for providing broadband connectivity.
Q26.
Which among the following is not true about Mobile Virtual Network Operator?

a.

MVNO owns wireless infrastructure

b.

MVNO purchases infrastructure at retail price

c.

MVNO is a form of leased network

d.

MVNO might operate with mobile virtual network enabler

Discuss
Answer: (d).MVNO might operate with mobile virtual network enabler Explanation:Mobile Virtual Network Operator does not own wireless network infrastructure. It purchases network services from a mobile network operator. In this method, the primary network provides opportunistic access to licensed spectrum. This is an example of leased network implementation in xG architecture.
Q27.
xG networks allow usage of spectrum band without a fixed infrastructure.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True Explanation:xG networks allow usage of spectrum band without a fixed infrastructure by maintaining communication priority and response time. It is also capable of adding a temporary or permanent spectrum to infrastructure links that are used for relaying traffic.
Q28.
Which among the following is the function of out-of-band sensing?

a.

Detect primary base-station

b.

Detect spectrum holes

c.

Detect primary user

d.

Detect xG users

Discuss
Answer: (b).Detect spectrum holes Explanation:A cognitive radio should be aware of its surrounding radio environment. Spectrum sensing allows a radio to find the unused spectrum in the radio environment. In out-of-band sensing, cognitive radio users focus on the identification of spectrum holes over a wide frequency range to transmit their information.
Q29.
What is the purpose of in-band sensing?

a.

Interference avoidance

b.

Sharing spectrum information

c.

Sharing spectrum resources

d.

Spectrum handoff

Discuss
Answer: (a).Interference avoidance Explanation:Spectrum sensing identifies unused spectrum holes that are available for transmission for cognitive radio users. During transmission, the cognitive radio users continue to monitor the spectrum band. They also sense other users of the primary network in order to avoid interference. Spectrum sensing carried out during transmission is called in-band sensing.
Q30.
Why is cooperation required in spectrum sensing?

a.

Elimination of base-station

b.

Elimination of xG users

c.

Interference avoidance

d.

Improvement of sensing accuracy

Discuss
Answer: (d).Improvement of sensing accuracy Explanation:The cognitive radio user monitors and studies the local radio environment to identify the current spectrum availability. The information gathered by each user is shared between its neighbours. This practice is known as cooperation in sensing and it improves the sensing accuracy.
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