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Data Science Mock Test 2026 – Free Online Test Series

This page lists all 5 free Data Science mock tests on Sarkari Results Now. A typical test has about 20 questions with a 20-minute timer. Tests follow the latest Data Science exam pattern and are free to attempt. Attempt them in order, review the answers after each test and track your progress to find weak topics before the real exam.

All Data Science Mock Tests

Sample Data Science Questions

  1. Underfitting is typically associated with a model that has:

    1. too many features
    2. perfect training accuracy
    3. high variance
    4. high bias

  2. What is the output of print(bool(0), bool("0"))?

    1. True True
    2. False True
    3. True False
    4. False False

  3. The median of the data set 3, 1, 7, 5, 9 is:

    1. 3
    2. 25
    3. 5
    4. 7

  4. Which SQL query finds the number of employees in each department?

    1. SELECT dept FROM emp HAVING COUNT(*);
    2. SELECT dept, COUNT(*) FROM emp GROUP BY dept;
    3. SELECT dept, COUNT(*) FROM emp ORDER BY dept;
    4. SELECT COUNT(dept) FROM emp WHERE dept;

Attempt the full test above to see the correct answers.