Welcome to The Coding College, where learning meets fun! This NumPy Quiz is designed to help you evaluate your understanding of the essential concepts of NumPy, the popular Python library for numerical computing. Whether you’re a beginner or a seasoned developer, this quiz will test your skills and deepen your knowledge.
About the Quiz
This quiz covers key topics in NumPy, including array creation, manipulation, mathematical functions, and advanced operations. Each question comes with multiple-choice options and answers to help you learn and improve.
NumPy Quiz Questions
Question 1: Array Creation
Which of the following functions is used to create an array in NumPy?
- A.
array() - B.
create_array() - C.
make_array() - D.
new_array()
Question 2: Array Dimensions
What is the term used to describe the number of dimensions of a NumPy array?
- A. Rank
- B. Shape
- C. Size
- D. Dimension
Question 3: Array Indexing
If arr = np.array([10, 20, 30, 40, 50]), what will arr[3] return?
- A. 10
- B. 20
- C. 30
- D. 40
Question 4: Array Slicing
What does arr[1:4] return if arr = np.array([0, 1, 2, 3, 4, 5])?
- A.
[0, 1, 2] - B.
[1, 2, 3] - C.
[2, 3, 4] - D.
[3, 4, 5]
Question 5: Unique Elements
Which function is used to find unique elements in a NumPy array?
- A.
np.distinct() - B.
np.unique() - C.
np.elements() - D.
np.find_unique()
Question 6: Array Shape
What does the shape attribute of a NumPy array return?
- A. Total number of elements
- B. Dimensions of the array
- C. Size of the largest dimension
- D. Data type of elements
Question 7: Mathematical Functions
Which of the following functions can be used to calculate the square root of each element in a NumPy array?
- A.
np.sqrt() - B.
np.pow() - C.
np.log() - D.
np.exp()
Question 8: Broadcasting
What is broadcasting in NumPy?
- A. Copying an array multiple times
- B. Performing operations on arrays of different shapes
- C. Broadcasting a message to all array elements
- D. Converting arrays to the same shape
Question 9: Random Numbers
Which function generates a random array in NumPy?
- A.
np.random.rand() - B.
np.random.generate() - C.
np.random.array() - D.
np.random.create()
Question 10: File I/O
Which function is used to save a NumPy array to a file?
- A.
np.save() - B.
np.write() - C.
np.export() - D.
np.file()
Scoring
- 0–4 Correct: Beginner – You’re just getting started. Keep practicing!
- 5–7 Correct: Intermediate – You’ve got a good grasp of NumPy basics.
- 8–10 Correct: Advanced – You’re a NumPy expert!
Why NumPy is Essential
NumPy is a foundational library for numerical computations in Python. It’s widely used in fields like data science, machine learning, and scientific computing. Mastering NumPy is a key step in becoming a proficient Python developer.
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