Cognitive Radio MCQ

Test your knowledge with important Cognitive Radio MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Cognitive Radio MCQs at Bissoy

• Temporal reasoning allows a system to reason about its operational characteristics at discrete points in time.
  ক

  True

  খ

  False
• Which among the following is not a challenge for case based reasoning implementation?
  ক

  Memory

  খ

  Fixed ontology and knowledge representation

  গ

  Pattern matching

  ঘ

  Accuracy of reasoning
• Which among the following is not a challenge of employing reasoning and learning stage in the cognitive radio?
  ক

  Computational requirement

  খ

  Quality of Service

  গ

  Edge conditions

  ঘ

  Predictable behaviour
• Which among the following statements provides the difference between reinforcement-based learning and temporal difference technique?
  ক

  State represented by a directed graph

  খ

  Assignment of weightage to an action on the basis of the degree of success

  গ

  Computation of degree of success

  ঘ

  Priori model of the sequence of possible states
• What is the parameter of analysis in reinforcement learning?
  ক

  Number of requests during wake cycle

  খ

  Number of processes to achieve final outcome

  গ

  Degree of failure

  ঘ

  Degree of success
• What does an arc in a decision tree represent?
  ক

  An action

  খ

  A decision

  গ

  Set of all possible choices

  ঘ

  Set of all possible plans
• Which among the following is employed for associating new concepts in the learning process for ontology based systems?
  ক

  Dissimilarities between two consequent entries

  খ

  Similarities between two consequent entries

  গ

  Similarities to existing entries in memory

  ঘ

  Dissimilarities to existing entries in memory
• Which among the following is not used for symbolic knowledge representation?
  ক

  Interface

  খ

  Objects

  গ

  Semantic nets

  ঘ

  Frames
• Which among the following is a benefit of symbolic knowledge representation?
  ক

  No encryption is required

  খ

  Fast translation

  গ

  Less memory storage

  ঘ

  Easy human comprehension
• Which among the following is concerned with the effect on a knowledge system?
  ক

  Behaviour knowledge

  খ

  Declarative knowledge

  গ

  Narrative knowledge

  ঘ

  Status and system knowledge
• What is called declarative knowledge?
  ক

  Declarative knowledge represents a range of values applicable for assigning a variable

  খ

  Declarative knowledge represents assumed statements

  গ

  Declarative knowledge asserts and reasons over descriptive factual knowledge

  ঘ

  Declarative knowledge represents predicted knowledge
• Which among the following processes under learning action initiates a change in the action selection policy?
  ক

  Observation of state of the radio system

  খ

  Decision making in reasoning engine

  গ

  Analyses of the outcome of the decision selected by the reasoning engine

  ঘ

  Modification of knowledge base
• Which among the following processes is required to extend radio adaption beyond predefined knowledge?
  ক

  Sorting

  খ

  Knowledge acquisition

  গ

  Reasoning

  ঘ

  Learning
• Which among the following techniques require geographic information database?
  ক

  Policy awareness

  খ

  Regulation awareness

  গ

  Mobility and trajectory awareness

  ঘ

  Background environment awareness
• Which among the following require radio transceiver database?
  ক

  RF environment awareness

  খ

  Location awareness

  গ

  Power consumption awareness

  ঘ

  Energy consumption awareness
• Which among the following statements is false about the introduction of a cognitive radio in a wireless regional area network?
  ক

  Availability of spectrum access information to the secondary user

  খ

  Availability of spectrum access information to the primary user

  গ

  Knowledge of antenna height

  ঘ

  Usage pattern of wireless regional area network
• Which among the following statements is false about the radio environment map on a network level?
  ক

  Radio environment map is compatible with hybrid node technology

  খ

  Radio environment map introduces network intelligence

  গ

  Radio environment map merges into the core of cognitive radio architecture

  ঘ

  Radio environment map is dependent on network topology
• Which among the following is termed as a local radio environment map?
  ক

  Wide area network level

  খ

  Hop to hop level

  গ

  User equipment terminal

  ঘ

  Local area network level
• Which among the following problems could be overcome by spreading gain?
  ক

  Delay due to fading

  খ

  Delay due to multipath

  গ

  Call drop due to multipath

  ঘ

  Call drop due to fading
• Which among the following is an approach that can be applied to overcome the effect of channel fading?
  ক

  Discarding particular channel from use

  খ

  Transmission and reception during fixed time slots

  গ

  Selection of appropriate waveform

  ঘ

  Compromising quality of service
• Which among the following is a common problem incorporated by a channel on cognitive radios?
  ক

  Switching delay

  খ

  Transmitter uncertainty

  গ

  Doppler shift

  ঘ

  Receiver uncertainty
• Which among the following phenomenon require site specific propagation prediction?
  ক

  Location awareness

  খ

  Geographical awareness

  গ

  RF environment

  ঘ

  Position awareness
• The cyclic coordinate method of optimization depends on the properties of objective functions.
  ক

  True

  খ

  False
• Which among the following is a function of policy service?
  ক

  Policy decision

  খ

  Policy life cycle management

  গ

  New policy request

  ঘ

  Policy enforcement
• Which among the following technologies is employed to predict performance metrics?
  ক

  Network based ontology

  খ

  Very large scale integrated circuits

  গ

  Radio propagation simulation tools

  ঘ

  Geographical information system
• Which among the following statements is false about the incorporation radio environment map in communication systems?
  ক

  Radio environment map supports adaption regardless of available resources

  খ

  Radio environment map allows network access on the basis of performance metrics

  গ

  Radio environment map supports collaborative information processing

  ঘ

  Radio environment map supports various network architectures
• Which among the following statements is false about a radio operating with the radio environment map?
  ক

  Aware of application layer operations

  খ

  Aware of physical layer operations

  গ

  Awareness of performance metrics

  ঘ

  Incompatibility with underlying radio access technology
• Which among the following units communicates with radio environment map in legacy radios?
  ক

  Local control and access manager

  খ

  Local bus manager

  গ

  Specialized processor

  ঘ

  Network radio resource manager
• Which among the following is achieved by combing learning with data mining in the radio environment map?
  ক

  Observation intelligence

  খ

  Learning

  গ

  Network intelligence

  ঘ

  Resource intelligence
• Which among the following is an advantage of spectrum sensing with radio environment map?
  ক

  High sensitivity

  খ

  Low transmission power

  গ

  Reduction in observation time

  ঘ

  High dynamic range