Question 1

How can you iterate over the keys of a dictionary using a 'for' loop in Python?

Accepted Answer

By using the 'keys()' method of the dictionary

Answer

By using the 'items()' method of the dictionary

Answer

By directly specifying the dictionary name

Answer

By using the 'values()' method of the dictionary

Question 2

What is the output of the following 'for' loop in Python?numbers = [10, 20, 30, 40, 50]for index, value in enumerate(numbers):    print(f'Index: {index}, Value: {value}')

Accepted Answer

Index: 0, Value: 10Index: 1, Value: 20Index: 2, Value: 30Index: 3, Value: 40Index: 4, Value: 50

Answer

10, 2020, 4030, 6040, 8050, 100

Answer

0, 101, 202, 303, 404, 50

Answer

(0, 10)(1, 20)(2, 30)(3, 40)(4, 50)

Question 3

What does the 'range()' function do when used in a 'for' loop in Python?

Accepted Answer

Generates a sequence of numbers based on the specified range

Answer

Creates a conditional statement within the loop

Answer

Randomly selects values from a list

Answer

Checks for syntax errors in the loop code

Question 4

What is the result of the following 'for' loop in Python?fruits = ['apple', 'banana', 'cherry']for fruit in fruits:    print(fruit.capitalize())

Accepted Answer

AppleBananaCherry

Answer

'apple''banana''cherry'

Answer

Apple, Banana, Cherry

Answer

APPLEBANANACHERRY

Question 5

What is the purpose of the 'range()' function in a 'for' loop in Python?

Accepted Answer

To generate a sequence of numbers to iterate over

Answer

To check for errors in the loop

Answer

To modify the loop's condition

Answer

To break out of the loop

Question 6

What is the advantage of using a 'for' loop over a 'while' loop in Python?

Accepted Answer

A 'for' loop is more suitable for iterating over sequences with a known length

Answer

A 'for' loop does not require an exit condition

Answer

A 'for' loop allows for more complex conditional statements

Answer

A 'for' loop is more efficient in terms of memory usage

Question 7

What is the output of the following 'for' loop in Python? numbers = [1, 2, 3, 4, 5] for num in numbers:     print(num * 2)

Accepted Answer

2 4 6 8 10

Answer

1 3 5 7 9

Answer

1 2 3 4 5

Answer

3 6 9 12 15

Question 8

What is the syntax for a 'for' loop in Python?

Accepted Answer

for item in sequence:

Answer

repeat item in sequence:

Answer

while item in sequence:

Answer

if item in sequence:

Question 9

How do you end a 'for' loop in Python?

Accepted Answer

By reaching the end of the sequence being iterated over

Answer

By using the 'break' statement

Answer

By using the 'stop' statement

Answer

By using the 'continue' statement

Question 10

What is the purpose of a 'for' loop in Python?

Accepted Answer

To iterate over a sequence of elements

Answer

To perform mathematical calculations

Answer

To define a function

Answer

To check for a specific condition

Question 11

What is a nested For Loop in Python?

Accepted Answer

A For Loop within another For Loop

Answer

A For Loop outside of a function

Answer

A For Loop with multiple conditions

Answer

A For Loop that doesn't iterate

Question 12

How can you terminate a For Loop prematurely in Python?

Accepted Answer

Using the 'break' keyword

Answer

Using the 'continue' keyword

Answer

Using the 'stop' keyword

Answer

Setting a flag variable to False

Question 13

What is a common use case for a Python For Loop?

Accepted Answer

Iterating over elements in a list or array

Answer

Creating a new dictionary

Answer

Performing string concatenation

Answer

Executing a single task repeatedly

Question 14

How is a For Loop different from a While Loop in Python?

Accepted Answer

A For Loop iterates over a sequence, while a While Loop repeats as long as a condition is true

Answer

A For Loop repeats as long as a condition is true, while a While Loop iterates over a sequence

Answer

For Loop and While Loop are exactly the same

Answer

A For Loop is used for counting, while a While Loop is used for calculations

Question 15

What is the output of the following Python code snippet?numbers = [1, 3, 5, 7, 9]for i in range(len(numbers)):    print(numbers[i] * 2)

Accepted Answer

26101418

Answer

13579

Answer

1014182226

Answer

246810

Answer

3691215

Question 16

What is the difference between 'range()' and 'len()' functions in Python for loops?

Accepted Answer

'range()' generates a sequence of numbers, while 'len()' returns the length of a sequence

Answer

'range()' is used for iterating over characters in a string, while 'len()' is used for mathematical operations

Answer

'len()' generates a sequence of numbers, while 'range()' is used for iterating over a sequence

Answer

'range()' returns the length of a sequence, while 'len()' generates a sequence of numbers

Question 17

What is the purpose of the 'continue' keyword in a Python for loop?

Accepted Answer

To skip the current iteration and move to the next one

Answer

To pause the loop until a condition is met

Answer

To exit the loop prematurely

Answer

To restart the loop from the beginning

Question 18

How can you iterate over key-value pairs in a dictionary using a Python for loop?

Accepted Answer

By using the items() method

Answer

By directly accessing the keys and values

Answer

By using the values() method

Answer

By converting the dictionary to a list of tuples first

Question 19

How can you loop through the characters of a string in a Python for loop?

Accepted Answer

Using the string itself as the sequence

Answer

Converting the string to a list before looping

Answer

Skipping the loop and directly accessing characters

Answer

Using a function to split the string into characters

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