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 a disadvantage of the signaling pipe?

a.

Lack of instant signaling

b.

Separate headers for non-adjacent layers

c.

Unreliable delivery of information

d.

Generation of interface between non-adjacent layers

Discuss
Answer: (a).Lack of instant signaling Explanation:Interlayer signaling allows signaling information to pass from layer to layer along with packet flow. The processing path in the protocol stack may pass from top to bottom or from bottom to top. This is not suitable for cross-layer implementation since it requires instant signaling.
Q142.
What is the full form of CLASS approach?

a.

Cross-Layer Skipping Shortcuts

b.

Cross-Layer Super Shortcuts

c.

Cross-layer Support Shortcuts

d.

Cross-Layer Signalling Shortcuts

Discuss
Answer: (d).Cross-Layer Signalling Shortcuts Explanation:Direct Interlayer Communication provides shortcuts between layers that are performed out of the band. Cross-Layer Signalling Shortcuts support the exchange of messages between non-adjacent layers eliminating the need for processing at each layer.
Q143.
Which among the following is false about the CLASS approach?

a.

Eliminates insertion of signaling information

b.

Supports only unidirectional communication

c.

Reduce overhead

d.

Eliminate interception of packet at non-destination layer

Discuss
Answer: (b).Supports only unidirectional communication Explanation:CLASS eliminates interception of packet at non-destination layer, reduces processing overhead, eliminates insertion of signaling information, and supports bidirectional communication. Signaling message typically includes the Internet Control Message Protocol.
Q144.
Which among the following is implemented parallel to the protocol stack?

a.

Interlayer signaling pipe

b.

Direct inter layer communication

c.

Central cross-layer plane

d.

Cross talk

Discuss
Answer: (c).Central cross-layer plane Explanation:The Central cross-layer plane is the most popularly used implementation of cross-layer design concept. It can be implemented as a shared database. Otherwise, each protocol layer creates separate interfaces for its internal protocol parameters and functions.
Q145.
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.
Q146.
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.
Q147.
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.
Q148.
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.
Q149.
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.
Q150.
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.
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