Data Sciences MCQs with answers

Exciting News for Aspiring ICTO Candidates: Prepare for Pakistan Army, Navy, and PAF Information Technology Branch Exams with Top-Rated Data Sciences and Computer Questions!

We understand the importance of thorough preparation, and to support your journey towards a successful career in the armed forces’ IT sector, we have compiled a tailored set of questions that cover key aspects of data sciences and computer sciences. These questions are designed to align with the requirements of the ICTO exams, ensuring that you are well-equipped with the knowledge and skills necessary to excel in the selection process.

Data Sciences MCQs Online Tests

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Data Sciences Quiz

Which of the following  provide a standard  API for   doing computation with  MongoDB :-

Machine learning is a subset   of  ____________:-

pandas consist of   moving  window  statistics :-

Every column in a table represents ;-

pandas consist of   an integrated   group by engine   for aggregating  and transforming data sets ;-

ML is  a field of  AI consisting of learning  algorithms  that -

Which of the following of a   random variable  is a measure  of spread  :-

Arrangement of  attributes into hierarchical are called :-

How many categories  of data   models   in DBMS :-

Positive residuals and negative  residuals are below the line ;-

Which of the following can   potentially  change  the   dtype  of a series :-

Which is a subset of  Machine learning :-

Most statistical datasets   are data frames  made up of rows and  columns ;-

Hierarchical   clustering  should be   mainly used for  exploration:-

Data visualisation  decrease  the   insight  and take slower   decision ;-

Every column in a table represents ;-

Which is correct feature  of  Data Frame :-

That one is not  considered as the  example of data  type in MS access ;-

Values in object oriented   models are   stored in :-

The binomial  random  variables  are obtained  as the sum of   iid  Gaussian  trials ;-

Which areas   are affected  by BI ;-

Which of the following   is also referred  to as random  variable :-

A member function  that changes   the state is a ;-

Hierarchical   clustering  should be   mainly used for  exploration:-

Which technology is used to process and analyze   large   scale data  sets in data science;-

Data Sciences Jobs MCQs with Answers

By utilizing these resources, you will not only strengthen your understanding of data sciences but also sharpen your grasp on computer-related concepts, giving you a competitive edge during the examination. We believe that a strong foundation in these areas will not only contribute to your success in the exams but will also prepare you for the challenges and responsibilities that come with a career in Information Technology within the armed forces.

  1. What is the primary goal of data preprocessing in data science?

    • A. Data visualization
    • B. Data cleaning
    • C. Model training
    • D. Feature extraction

    Correct Answer: B. Data cleaning

  2. In machine learning, what does the term “overfitting” refer to?

    • A. Model fitting the training data well but failing on new data
    • B. Model generalizing well to new data
    • C. Model underperforming on both training and new data
    • D. Model having an optimal fit on the training data

    Correct Answer: A. Model fitting the training data well but failing on new data

  3. Which statistical measure provides a central tendency of a dataset?

    • A. Standard deviation
    • B. Median
    • C. Range
    • D. Variance

    Correct Answer: B. Median

  4. What is the purpose of the k-nearest neighbors (KNN) algorithm?

    • A. Classification
    • B. Regression
    • C. Clustering
    • D. Feature scaling

    Correct Answer: A. Classification

  5. Which data type is used to represent categorical variables in Pandas?

    • A. Float
    • B. String
    • C. Object
    • D. Int

    Correct Answer: C. Object

  6. What does the acronym SQL stand for in the context of databases?

    • A. Structured Question Language
    • B. System Query Language
    • C. Standardized Query Language
    • D. Structured Query Language

    Correct Answer: D. Structured Query Language

  7. Which of the following is a supervised learning algorithm?

    • A. K-means clustering
    • B. Decision tree
    • C. Apriori algorithm
    • D. Principal Component Analysis (PCA)

    Correct Answer: B. Decision tree

  8. What is the purpose of the term “bagging” in ensemble learning?

    • A. Boosting the model performance
    • B. Reducing model complexity
    • C. Training multiple models independently
    • D. Feature selection

    Correct Answer: C. Training multiple models independently

  9. What is the main advantage of using a NoSQL database over a traditional relational database?

    • A. ACID compliance
    • B. Schema flexibility
    • C. Strict consistency
    • D. Tabular data representation

    Correct Answer: B. Schema flexibility

  10. In a confusion matrix, what does the term “precision” measure?

  • A. Proportion of true positives to actual positives
  • B. Proportion of true negatives to actual negatives
  • C. Proportion of true positives to predicted positives
  • D. Proportion of true negatives to predicted negatives

Correct Answer: C. Proportion of true positives to predicted positives

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