Explore topic-wise InterviewSolutions in .

This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

101.

Which among the following has to be carried out for reverse flow of knowledge?(a) Training interfaces(b) Hypothesis management(c) Linear flow of signals(d) Data managementThe question was posed to me during a job interview.I'm obligated to ask this question of Architecture Maps in section Cognitive Radio Architecture of Cognitive Radio

Answer»

Right choice is (a) Training interfaces

Easiest explanation: The interfaces have to be trained to ensure flow of knowledge can OCCUR from inference hierarchy to the perception systems. This AIDS in MAINTAINING and ALTERING the internal STRUCTURE of radio. For example, the vision subsystem and the audio subsystem exchange knowledge to take decision when there is a mismatch in one domain in a two way identification system.

102.

Which among the following variables consider user communication context?(a) Words(b) Phrase(c) Dialog(d) SceneI got this question by my school principal while I was bunking the class.My doubt is from Architecture Maps in section Cognitive Radio Architecture of Cognitive Radio

Answer»

Right CHOICE is (d) Scene

The explanation is: Scene bindings consider user COMMUNICATION context. This information is used in the generation of PLANS whichdeal with the context of a situation. The plans are created by the assessment of action REQUESTS during the plan PHASE.

103.

Which among the following components map the output of act phase to various sections of architecture map?(a) Effect(b) Input(c) Decide(d) TransformI have been asked this question in an online quiz.The origin of the question is Architecture Maps in portion Cognitive Radio Architecture of Cognitive Radio

Answer»
104.

What application is supported by IBM research tool XTAG?(a) Data analysis(b) Natural Language Processing(c) Machine learning(d) Artificial IntelligenceI have been asked this question during an interview.I would like to ask this question from Architecture topic in chapter Cognitive Radio Architecture of Cognitive Radio

Answer»
105.

Which among the following is avoided in horizontal specify-explore-refine models?(a) Resource dependencies(b) Control dependencies(c) Data dependencies(d) Logical dependenciesThe question was asked in homework.The above asked question is from Architecture topic in chapter Cognitive Radio Architecture of Cognitive Radio

Answer»
106.

What is the atomic symbol equivalent of an image?(a) Small group of blocks(b) Small group of phoneme(c) Small group of pixels(d) Small group of pointsThis question was posed to me at a job interview.Question is taken from Architecture in chapter Cognitive Radio Architecture of Cognitive Radio

Answer»
107.

What is the visual information equivalent of a basic sequence?(a) Blob(b) Object(c) Image(d) Video clipI got this question in final exam.The origin of the question is Architecture topic in section Cognitive Radio Architecture of Cognitive Radio

Answer»

Correct ANSWER is (d) Video clip

The best I can explain: Primitive sequence is succeeded by BASIC sequence. Context can be drawn from the information offered by a basic sequence. Phrases COMPOSED of words and video clip composed of images are EXAMPLES of basic SEQUENCES.

108.

Which among the following specifies the correct sequence of steps followed to obtain primitive sequence in speech?(a) Isolate the basic sequence, analyse the basic sequence, analyse the primitive sequence(b) Isolate the basic sequence, isolate the primitive sequence, analyse the basic sequence(c) Analyse the basic sequence, isolate the basic sequence, analyse the primitive sequence(d) Isolate the basic sequence, analyse the primitive sequence, analyse the basic sequenceThe question was asked at a job interview.My doubt is from Architecture in chapter Cognitive Radio Architecture of Cognitive Radio

Answer»

The CORRECT answer is (a) Isolate the basic sequence, ANALYSE the basic sequence, analyse the primitive sequence

For explanation I would SAY: In SPEECH, the sensor obtains input that correlate with the definition of basic sequence. In ORDER to obtain the primitive sequence, the basic sequence is isolated from background noise. The basic sequence is analysed to identify potential boundaries of primitive sequence. The primitive sequence is then extracted and statistically analysed.

109.

XTAG caters to the requirement of cognitive radio.(a) True(b) FalseThe question was asked during an interview.My question is taken from Architecture topic in chapter Cognitive Radio Architecture of Cognitive Radio

Answer» CORRECT option is (B) False

For EXPLANATION I would SAY: Cognitive radio should initiate transmission when it receives a command “transmit” with an attached message. However XTAG abilities only allow differentiating a verb from a noun but it cannot comprehend the meaning of a command and initiate ACTION.
110.

What is the capability of a basic sequence?(a) Communicate message with meaning(b) Construct a word(c) Identify useful information from data(d) Collect dataI have been asked this question in final exam.My question is from Architecture in section Cognitive Radio Architecture of Cognitive Radio

Answer»

The correct answer is (a) Communicate message with MEANING

To explain I WOULD say: Basic sequence can DELIVER messages with meaning. These messages are defined using the ontology made available by PRIMITIVE sequence. For example, a phrase (basic sequence) is constructed using words (primitive sequence).

111.

What is binding?(a) Naming each path(b) Associating a path for each type of input(c) Developing subsets from multiple inputs(d) Naming each inputThis question was addressed to me in an international level competition.My enquiry is from Architecture in division Cognitive Radio Architecture of Cognitive Radio

Answer»

Right option is (C) Developing subsets from multiple inputs

Easy explanation: BINDING is the PROCESS of grouping input from SEVERAL directions into a single input or into a group of subsets. It helps to assign a priority level for each input such that the time-sensitive operations are completed first for EFFECTIVE performancce.

112.

Which ontologies must work together for seamless user interaction experience?(a) and (b) and (c) and (d) and I got this question by my school principal while I was bunking the class.The origin of the question is Architecture in division Cognitive Radio Architecture of Cognitive Radio

Answer»

The correct choice is (b) and

EASY explanation: The best user interaction experience is BUILT when the RADIO can UNDERSTAND vague commands from the owner. This requires continuous development of user ontology. It also requires the matching of user ontology with RF domain actions.

113.

Why is the RXML statement added in cognitive radio?(a) To add cognitive architecture to cognitive radio(b) To define functions(c) To define interfaces(d) To eliminate componentsThis question was posed to me in class test.I need to ask this question from Architecture topic in section Cognitive Radio Architecture of Cognitive Radio

Answer»
114.

Which among the following is a characteristic that need not be compulsorily present to overcome self-referential inconsistency in cognitive radio?(a) Definition of process as a priori tightly bounded time epochs(b) Step counting function(c) Susceptible to Gödel-Turing condition(d) Pre-defined actions that uses O (1) resourcesThe question was asked in an online interview.My enquiry is from Architecture in section Cognitive Radio Architecture of Cognitive Radio

Answer»

Correct ANSWER is (c) Susceptible to Gödel-Turing condition

The best explanation: In order to computationally SUPPORT real time transmission and reception, a process must be defined in priori tightly bounded time epochs. A pre-defined action that uses O (1) resources is defined in ADVANCE and a reliable step counting function must be present. This will HELP in avoiding unpredictable usage of resources and unpredictable self-referential LOOPS.

115.

Constraint programming consists of variables, constraints, and domains.(a) True(b) FalseI got this question in an international level competition.I'd like to ask this question from Building CRA on SDR Architecture in division Cognitive Radio Architecture of Cognitive Radio

Answer»

Right answer is (a) True

Easy EXPLANATION: In constraint PROGRAMMING, a problem is described as a mathematical equation. For example, ‘a’, ‘B’, ‘c’ are three whole NUMBERS and the sum of ‘a’ and ‘b’ MUST be equal to ‘c’. Here ‘a’, ‘b’, and ‘c’ are the variables. The whole number corresponds to a domain. The sum of ‘a’ and ‘b’ must be equal to ‘c’ corresponds to a constraint.

116.

Waking behaviour prevents unmanageable accumulation of data.(a) True(b) FalseThis question was posed to me during an interview.The above asked question is from Architecture Maps in portion Cognitive Radio Architecture of Cognitive Radio

Answer»

Right answer is (B) False

The best EXPLANATION: Sleeping/dreaming behaviour PREVENTS unmanageable accumulation of data. Sleeping/dreaming behaviour develop specify-explore-refine model using the information collected during waking behaviour. This HELPS in embedding real-time EXPERIENCE in the next waking behaviour.

117.

When does a cognitive radio give up control of application?(a) High traffic load(b) Long period without input from user(c) On receiving pre-emptive command from user(d) Bad weather conditionsThe question was posed to me by my college director while I was bunking the class.This key question is from Architecture topic in chapter Cognitive Radio Architecture of Cognitive Radio

Answer»

Correct CHOICE is (c) On receiving pre-emptive command from USER

To explain: The cognition function transfers the control of applications, interfaces, and radio resources on receiving pre-emptive command from the network or from the user. The control may be transferred to a network or a PRIMARY user depending on DEFINED protocols.

118.

Which among the following is a data structure included in the architecture map in addition to the general structure of cognition cycle?(a) Decide(b) Dialog state(c) Act(d) PlanThe question was posed to me in semester exam.I want to ask this question from Architecture Maps topic in section Cognitive Radio Architecture of Cognitive Radio

Answer»

Correct choice is (b) Dialog state

The best explanation: The cognitive radio section of the architecture MAP is composed of sequences of inference hierarchy, WORLD model composed of bindings between a-priori data structures and the current scene, and phases of cognition. Dialog states, ACTION requests, plans, and action are additional data structures ADDED to support the phases of cognition cycle.

119.

What is term used to refer to a handset with multiple single band RF chips?(a) Pocket radio(b) Multi-set radio(c) Slice radio(d) Fixed radioI had been asked this question in examination.The question is from Building CRA on SDR Architecture in division Cognitive Radio Architecture of Cognitive Radio

Answer»
120.

Which among the following is not an example of noise?(a) Pre-processing algorithm bias(b) Truncation of low energy signal(c) Binding mismatch(d) Conversion errorI had been asked this question in quiz.I'm obligated to ask this question of Architecture Maps in division Cognitive Radio Architecture of Cognitive Radio

Answer»

Right answer is (c) Binding mismatch

The EXPLANATION is: In communication theory, noise refers to anything that HINDERS proper communication. It occurs in voice signals, IMAGES, videos, location estimates, etc. It is a CRITICAL aspect in industrial strength cognitive radio.

121.

Which among the following is achieved by applying horizontal cognition component s in inference hierarchy?(a) Radio skills are embedded(b) Context cluster is developed(c) Hierarchy is demolished(d) Hierarchy is establishedThe question was asked in examination.I would like to ask this question from Architecture topic in division Cognitive Radio Architecture of Cognitive Radio

Answer»

The CORRECT ANSWER is (a) Radio skills are embedded

For explanation I would say: Radio skills are embedded by the introduction horizontal cognition components in inference hierarchy. When radio knowledge is static, radio skills are generated by the intervention of algorithms and inference ENGINES.

122.

Which among the following function is used in the plan phase?(a) User sensory perception(b) Cognition function(c) Local effectors(d) System applicationThe question was asked during an internship interview.I'm obligated to ask this question of Architecture in chapter Cognitive Radio Architecture of Cognitive Radio

Answer»
123.

Which among the following modes support real-time interaction?(a) Waking(b) Sleeping(c) Prayer(d) ProlongThis question was posed to me in an internship interview.My question is taken from Architecture in portion Cognitive Radio Architecture of Cognitive Radio

Answer»

Correct choice is (a) Waking

For explanation I WOULD say: The waking behaviour supports real TIME interaction with user and obtains real time input from the environment. It is also REFERRED to as awake-state. HOWEVER it does not imply a fixed state but a collection of BEHAVIOURS.

124.

How does the cognition cycle operate?(a) Active(b) Reactive(c) Passive(d) ActivatedI had been asked this question at a job interview.The doubt is from Architecture in section Cognitive Radio Architecture of Cognitive Radio

Answer»

Right choice is (b) Reactive

The best I can explain: The cognition cycle CARRIES out its FUNCTIONS in a reactive sequence. Stimuli from the outside world are accepted by the SENSORS. The information is passed to the cognition cycle to GENERATE a response.

125.

Which among the following methods enable identification of learning opportunities in machine learning in cognitive radio?(a) Gamma distribution(b) Joint probability statistics(c) Variance(d) Uniform distributionThe question was asked in semester exam.This interesting question is from Architecture topic in portion Cognitive Radio Architecture of Cognitive Radio

Answer»
126.

What method may introduce a trade-off between time and space in cognitive radio structure?(a) Introduction of fully programmed solutions(b) Introduction of partial solutions(c) Introduction of real time solutions(d) Introduction of large memoryI got this question by my school teacher while I was bunking the class.This intriguing question originated from Architecture in chapter Cognitive Radio Architecture of Cognitive Radio

Answer»

Right OPTION is (b) Introduction of partial solutions

For EXPLANATION: The introduction of partial solutions HELP in solving complex PROBLEMS because a subset of problems relating to the complex problem will be SOLVED first. The number of calculations may not be completely reduced but there is slight development in the overall computational burden.

127.

Which among the following may be inferred by analysing temporal properties of simultaneous processes?(a) Time difference of transmission(b) Timeout in fault tolerant systems(c) Time of arrival in receiver(d) Time difference of arrival in receiverThe question was asked during an online interview.This intriguing question comes from Building CRA on SDR Architecture topic in portion Cognitive Radio Architecture of Cognitive Radio

Answer»

The correct answer is (b) Timeout in fault tolerant SYSTEMS

Explanation: The examination of TEMPORAL properties of simultaneous processes may determine timeout in fault tolerant systems, duration control in real time systems, etc. It may be regarded as a logic-based APPROACH for reasoning about time. It may be employed for planning activities in cognitive RADIO.

128.

Which among the following is the map that bridges the world unit with the cognitive radio unit in architecture map?(a) Input(b) Reasoning(c) Planning(d) ActingThis question was addressed to me in final exam.My doubt stems from Architecture Maps topic in portion Cognitive Radio Architecture of Cognitive Radio

Answer»

Right option is (a) Input

For explanation I WOULD say: The input map connects the WORLD unit to the sensory data segment of the cognitive radio in ARCHITECTURE map. It is made up of components that convert external input to the format of internal sensory data.

129.

A white space may act as a boundary to derive primitive sequence.(a) True(b) FalseI had been asked this question in an online interview.Query is from Architecture topic in section Cognitive Radio Architecture of Cognitive Radio

Answer»

Right choice is (a) True

The EXPLANATION: When aggregated data is available, primitive sequence MAY be DERIVED by selecting an atomic symbol as a boundary. In a text BASED system, a white space is regarded as a boundary for generating primitive sequence. For example, white SPACES are employed to separate words in text.

130.

What among the following is not characteristic of a causal model?(a) Causal models make predictions about the behaviour of the system(b) Causal models assign truth value(c) Causal models do not include the effect of intervention(d) Causal models determine probabilistic dependence of variablesI got this question in an internship interview.This question is from Architecture topic in division Cognitive Radio Architecture of Cognitive Radio

Answer»
131.

Observe phase involves cognition components.(a) True(b) FalseThis question was posed to me in my homework.My doubt is from Architecture topic in portion Cognitive Radio Architecture of Cognitive Radio

Answer» CORRECT option is (b) False

To EXPLAIN: Observe phase involves user SENSORY perception and environment sensor components. The orient phase uses cognition components of the aware, adaptive, and cognitive radio ARCHITECTURE.
132.

Which among the following functions control the environmental sensors?(a) Cognition function(b) Local effector function(c) User SP function(d) Perception functionThe question was posed to me in a job interview.This interesting question is from Architecture in section Cognitive Radio Architecture of Cognitive Radio

Answer»

The CORRECT option is (a) Cognition function

The best explanation: The cognition functions CONTROL the environmental sensor. DATA is sent from the cognition function to SWITCH on/off the environmental sensors, constructing internal paths from the sensors and ENABLING control parameters.

133.

What does grounding mean in terms of ontology comprehension in cognitive radio architecture?(a) Association of language used by user with that of cognitive radio(b) Association of language used by cognitive radio with that of user(c) Association of network used by user with that of cognitive radio(d) Association of network used by cognitive radio with that of userThis question was addressed to me in unit test.The doubt is from Architecture in division Cognitive Radio Architecture of Cognitive Radio

Answer»

Correct option is (b) Association of language USED by cognitive radio with that of user

Explanation: GROUNDING initially beings with installation of a speech RECOGNITION subsystem that identifies common PHRASES used by the owner while referring to particular services. It is accomplished by TEXT and speech recognition. It also involves asking “yes or no” questions either verbally or on display.

134.

Adaption may be pre-programmed.(a) True(b) FalseThis question was posed to me during an internship interview.This is a very interesting question from Architecture in chapter Cognitive Radio Architecture of Cognitive Radio

Answer»

Correct choice is (a) True

For explanation: Awareness enables adaption. Adaption is ABILITY to direct a change according to input OBTAINED from sensing. Adaption may be achieved without introducing learning through pre-programming. However, it is not possible to program all possible changes hence the next LEVEL of CAPABILITY cognition is required.

135.

How can a radio be trained to accept commands from one owner entity?(a) Perception functions(b) Sensory functions(c) Awareness functions(d) Adaptive functionsI have been asked this question during an online interview.This key question is from Architecture topic in division Cognitive Radio Architecture of Cognitive Radio

Answer»

The correct option is (a) Perception functions

Explanation: Perception functions can sense and TRACE known, unknown, and background information at all TIME. It is considered as a sub-category of cognition functions. The ABILITY to accept commands from a PARTICULAR entity and ignore all other entities is provided by perception functions.

136.

What degree of capability is achieved by the installation of a GPS receiver in a radio?(a) Aware(b) Adaptive(c) Cognitive(d) ProgrammableThe question was posed to me in quiz.I'd like to ask this question from Architecture in section Cognitive Radio Architecture of Cognitive Radio

Answer» CORRECT OPTION is (a) Aware

To explain: An aware device can obtain useful information. A device with GPS RECEIVER is capable of sensing its location. However, a device becomes adaptive only when it uses the information for an application such as a map.
137.

Which among the following describes the functions of cognitive radio?(a) Define personalities(b) Monitor knowledge(c) Define antenna direction using pre-stored tables(d) Support plug and playThis question was posed to me in an online quiz.Query is from Architecture topic in division Cognitive Radio Architecture of Cognitive Radio

Answer» RIGHT option is (B) Monitor knowledge

To elaborate: The cognition functions of a cognitive radio include monitoring and constructing knowledge, particularly of repeated actions and CHARACTERISTICS exhibited by USER, SURROUNDINGS, and radio. This helps information services to match the preferences of the user.