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 15 of 33

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Q141.
Which among the following is not a disadvantage ICMP protocol for direct inter layer communication?

a.

IP headers are included

b.

High protocol processing overhead

c.

Limited to request-respond action

d.

Loss of message packet cannot be identified

Discuss
Answer: (d).Loss of message packet cannot be identified Explanation:ICMP protocol has a large protocol header and protocol processing overhead. It is limited to request-response actions. However, cross-layer design demands for asynchronous communication. This can be overcome by creating a call back function with a procedure suited to the needs of the layers under consideration.
Q142.
Which among the following is not a cross-layer design challenge associated with the lower layer of the protocol stack?

a.

Topology configuration

b.

Interference mitigation

c.

Cooperative sensing

d.

Energy consumption

Discuss
Answer: (a).Topology configuration Explanation:Spectrum sensing is capable of detecting interference only at the transmitters. Interference measurements should be shared to identify the amount of interference at other users and receivers. This is carried out by cooperative sensing. However cooperative sensing generates large communication overhead that leads to reduced performance in terms of channel capacity and energy consumption.
Q143.
Which among the following may be employed to reduce performance degradation on a route with interference towards primary users?

a.

Multiple spectrum brokers

b.

Spatially distributed amplifiers

c.

Multi-spectrum interfaces

d.

Spatially distributed base-stations

Discuss
Answer: (c).Multi-spectrum interfaces Explanation:If a route between two xG users causes interference to surrounding primary users, it might affect the end-to-end latency or might cause packet loss along the route. This could be overcome by using multiple spectrum interfaces at intermediary nodes which introduces multiple hops in a route.
Q144.
Which among the following is true about the explicit congestion network?

a.

Explicit congestion notification is an extension of the data link layer and network layer

b.

Explicit congestion notification is an extension of transport and network layer

c.

Explicit congestion notification is an extension of transport and data link layer

d.

Explicit congestion notification is an extension of the physical and data link layer

Discuss
Answer: (b).Explicit congestion notification is an extension of transport and network layer Explanation:Explicit congestion notification informs about network congestion to end devices without dropping packets. It is possible only when the end devices and the underlying infrastructure support ECN. The procedure involves marking a bit in the IP header to indicate upcoming congestion.
Q145.
Which among the following is not a challenge for spectrum sensing?

a.

Continuous sensing of spectrum

b.

Energy consumption

c.

Switching between sensing and transmission

d.

Limit sensing when a single radio is deployed

Discuss
Answer: (d).Limit sensing when a single radio is deployed Explanation:Radio cannot sense the entire available spectrum continuously. An upper limit is established on energy consumption for a period of time. Thus accurate spectrum knowledge is unavailable at all times. Cross-layer interaction is required for switching between transmissions and sensing operations during in-band sensing operation.
Q146.
Which among the following accounts for the additional routing costs generated for cross-layer information processing?

a.

Security

b.

Processing efficiency

c.

Latency

d.

Delay

Discuss
Answer: (b).Processing efficiency Explanation:Processing efficiency accounts for the additional routing costs applicable for cross-layer information processing. It especially affects the high speed links where only the time to live field of a packet is decreased to ensure fast processing of packets.
Q147.
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.
Q148.
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.
Q149.
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.
Q150.
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.
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