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Multitude Test for Data Scientist

Quiz by NYKAA E- RETAIL PRIVATE LIMITED.

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64 questions
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  • Q1
    What is the primary goal of data science?
    To store data indefinitely
    To collect as much data as possible
    To extract insights and knowledge from data
    To create complex algorithms
    30s
  • Q2
    Which of the following is a common programming language used in data science?
    JavaScript
    CSS
    HTML
    Python
    30s
  • Q3
    What is the technique called that helps in reducing the dimensionality of data?
    Data Normalization
    Overfitting
    Principal Component Analysis (PCA)
    Cross-Validation
    30s
  • Q4
    What is the purpose of data visualization in data science?
    To write code efficiently
    To store data securely
    To make complex data understandable
    To increase data collection speed
    30s
  • Q5
    Which method is commonly used to prevent overfitting in machine learning?
    Data Encryption
    Cross-Validation
    Dimensionality Reduction
    Data Augmentation
    30s
  • Q6
    What is the term for a model's ability to make accurate predictions on new, unseen data?
    Generalization
    Training
    Parameter Tuning
    Fitting
    30s
  • Q7
    Which of the following techniques is often used for handling missing data in datasets?
    Clustering
    Regularization
    Normalization
    Imputation
    30s
  • Q8
    What does the term 'big data' refer to?
    Small datasets that are easy to analyze
    Data that is exclusively stored in cloud services
    Data that does not change over time
    Extremely large datasets that require special processing techniques
    30s
  • Q9
    Which type of machine learning algorithm is used for classification problems?
    Unsupervised Learning
    Supervised Learning
    Dimensionality Reduction
    Reinforcement Learning
    30s
  • Q10
    What is the primary role of a data scientist?
    To write software applications
    To design graphic interfaces
    To analyze and interpret complex data to help inform business decisions
    To manage IT infrastructure
    30s
  • Q11
    What is Qlik primarily used for?
    Graphic design
    Web development
    Project management
    Data visualization and business intelligence
    30s
  • Q12
    Which feature does Qlik utilize to enable associative data modeling?
    In-memory processing
    Machine learning
    Data warehousing
    Batch processing
    30s
  • Q13
    What is the main purpose of Qlik Sense?
    Image editing
    Self-service data analytics
    Video streaming
    Web hosting
    30s
  • Q14
    Which of the following is a product offered by Qlik?
    Tableau
    Power BI
    QlikView
    Looker
    30s
  • Q15
    What does the 'Qlik Associative Engine' allow users to do?
    Perform complex statistical analysis
    Explore data relationships intuitively
    Store large volumes of data
    Generate random datasets
    30s

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