Python String Data Structure

What is the result of 'hello' + 'world' in Python?

• hello world

• helloworld

• helloworld

• worldhello

How can you access the first three characters of a string in Python using slicing?

• string_name[0:3]

• string_name[1:4]

• string_name(0:3)

• string_name.substring(0, 3)

What method in Python can be used to convert a string to uppercase?

• upper()

• toUpper()

• toUpperCase()

• convertToUpper()

What is the output of ' '.join(['hello', 'world']) in Python?

• worldhello

• hello, world

• helloworld

• hello world

What is the purpose of the format() method in Python string formatting?

• To insert values into a string with placeholders

• To remove all whitespace from a string

• To split a string into a list of substrings

• To convert a string to uppercase

How can you check if a string contains a specific substring in Python?

• Use the 'locate()' function

• Use the 'contains()' method

• Use the 'substring()' function

• Use the 'in' keyword or the 'find()' method

What is the result of 'hello'.upper() in Python?

• Hello

• hello

• HELLO

• 'HELLO'

What is the difference between string interpolation and string formatting in Python?

• String interpolation and string formatting are the same thing.

• String interpolation uses single quotes, while string formatting uses double quotes.

• String interpolation uses f-strings or format() method, while string formatting uses the % operator or format() method.

• String interpolation is used for numerical values, while string formatting is used for text.

What is the output of 'hello'.replace('l', 'z') in Python?

• hzzlo

• hezlo

• hello

• 'hezzo'

How can you extract the last four characters of a string in Python using slicing?

• string[0:-4]

• string[4:]

• string[-4:]

• string[-1:-4]