CSV File Quiz Class 12 CBSE Python

1. How do you import the csv module in Python?

import csv_module

from csv import module

import csv

from module import csv

2. Which method of the csv module is used to write into a CSV file row by row?

csv.writerow()

csv.writerows()

csv.writer()

csv.write()

3. In the context of CSV files, what does the reader() method do?

Reads the entire file as a single string

Reads data from a binary file

Reads data from a CSV file row by row

Reads the entire file as a list

4. What operation does the writerow() method of the csv module perform?

Writes a single character to a CSV file

Writes a single row to a CSV file

Writes a single column to a CSV file

Writes a single line to a CSV file

5. How can you open a CSV file for writing in Python?

file = open(“example.csv”, “r”)

file = open(“example.csv”, “w”)

file = open(“example.csv”, “rb”)

file = open(“example.csv”, “wb”)

6. What is the primary purpose of a stack data structure?

To organize data in a tabular form

To store and retrieve elements in a Last In, First Out (LIFO) order

To perform mathematical calculations

To sort data alphabetically

7. Which operation is used to add an element to a stack?

Insert

Push

Append

Add

8. 8. In a stack, what does the “pop” operation involve?

Removing the top element

Adding an element to the top

Checking the top element

Searching for an element

9. How is a stack implemented using a list in Python?

stack = list( )

stack = { }

stack = set( )

stack = [ ]

10. What happens when you pop an element from an empty stack?

The program terminates

An error occurs (stack underflow)

The stack remains unchanged

The bottom element is removed

11. In a stack, what is the purpose of the “peek” operation?

To add an element

To remove an element

To check the top element without removing it

To reverse the order of elements

12. What is the time complexity of the “push” and “pop” operations in a stack implemented using a list?

O(1)

O(n)

O(log n)

O(n^2)

13. Which of the following is an application of a stack data structure?

Sorting elements in ascending order

Evaluating arithmetic expressions

Storing elements in a random order

Searching for an element in a list

14. How can you clear all elements from a stack in Python?

stack.clear()

stack.pop_all()

stack.remove_all()

stack = []

15. What does the “is_empty” method check in a stack?

If the stack is full

If the stack is not empty

If the stack is empty

If the stack has a certain size

CSV File Quiz Class 12

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CBSE Python