Python Strings Quiz

What does the negative index in Python string slicing represent?

• A. Characters from the start of the string

• B. Characters from the end of the string

• C. Characters in uppercase

• D. Characters in lowercase

What will be the output of the following code snippet: `print(s[-4])` if `s = "AIMLWhales"`?

• A. l

• B. a

• C. W

• D. h

Which Python construct is used to iterate through each character in a string?

• while loop

• if statement

• for loop

• switch statement

What happens during each iteration of the for loop when iterating through a string?

• The loop skips every second character.

• The loop pulls characters in order and prints the next character.

• The loop reverses the string.

• The loop stops after the first character.

In the example provided, how is the first character of the string changed?

• By directly modifying the string.

• By creating a new string using concatenation.

• By using a loop to replace the character.

• By using a built-in function to replace the character.

Given the string `s = "AIMLWhales"`, what will `print("Whales" in s)` output?

• True

• False

• Error

• None

What does the `clear()` method do to a list in Python?

• Removes all items from the list.

• Adds an element at the end of the list.

• Adds multiple elements to the end of the list.

• Adds an element at a specific position.

If you want to add multiple elements `[15, 20, 25]` to the end of a list, which method should you use?

• extend()

• append()

• insert()

• clear()

What will be the output of the following code snippet? list_a = [1, 2, 3] list_b = list_a list_b.append(4) print(list_a)

• [1, 2, 3]

• [1, 2, 3, 4]

• [4]

• [1, 2, 3, 4, 4]

Why is `list_a` modified when `list_b.append(4)` is executed in the given code snippet?

• Because `list_b` is a copy of `list_a`.

• Because `list_b` is an alias for `list_a`.

• Because `list_b` is a new list created from `list_a`.

• Because `list_a` and `list_b` are independent lists.