Data Science: Field Training Quiz
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Questions and Answers

What is the primary goal of data science?

  • To develop data management systems
  • To collect and store data
  • To create data visualizations
  • To uncover useful information hidden in data (correct)
  • Which stage of the Data Science Life Cycle involves analyzing data bias, pattern, and distribution?

  • Data processing
  • Data ingestion
  • Communication
  • Data analysis (correct)
  • Which tool is known as an open-source language for statistical computing and graphs?

  • Python
  • SAS
  • R studio (correct)
  • None of the above
  • What is the primary purpose of a data set in data science?

    <p>To verify the ability of a model to generalize</p> Signup and view all the answers

    What type of data set includes group of data about a specific topic obtained from different sources?

    <p>Multivariate</p> Signup and view all the answers

    What does the data processing stage of the Data Science Life Cycle involve?

    <p>Cleaning, sorting, and transforming data before storing</p> Signup and view all the answers

    What is the primary difference between the 'Validation' and 'Test' datasets?

    <p>Validation dataset is used to measure model performance, while the Test dataset contains unknown data for evaluating the model's performance.</p> Signup and view all the answers

    What is the main objective of Dimensionality Reduction in machine learning?

    <p>To remove irrelevant and redundant information from the data.</p> Signup and view all the answers

    In machine learning, what does Transfer Learning involve?

    <p>Re-using a pre-trained neural network and adapting it to a similar task.</p> Signup and view all the answers

    What is the primary function of Natural Language Processing (NLP) in machine learning?

    <p>To enable computers to understand, interpret, and generate human language in a valuable manner.</p> Signup and view all the answers

    What is the key purpose of Ensemble Methods in machine learning?

    <p>To reduce both bias and variance of a learning model.</p> Signup and view all the answers

    What is the main objective of Anomaly Detection in unsupervised learning?

    <p>To identify unusual data points or patterns that deviate from normal behavior within a dataset.</p> Signup and view all the answers

    What is the purpose of the 'Validation' dataset?

    <p>To measure performance of known data against algorithms</p> Signup and view all the answers

    Which process involves filtering data from unwanted entries such as irrelevant, duplicated, and missing data?

    <p>Data Cleaning</p> Signup and view all the answers

    What is the primary objective of supervised learning?

    <p>Make predictions based on input and output data</p> Signup and view all the answers

    Which machine learning method is used to compress data using fewer numbers?

    <p>Dimensionality reduction</p> Signup and view all the answers

    What is a key requirement for deep learning to capture non-linear patterns?

    <p>Large quantities of data and computer power (GPU)</p> Signup and view all the answers

    In which area does machine learning play a role in capturing non-linear patterns?

    <p>Word Embedding in natural language processing</p> Signup and view all the answers

    What is the primary focus of an adaptable defense system in cybersecurity?

    <p>Gaining information about new attacks</p> Signup and view all the answers

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