What does this code do?

f= open('file.txt', 'r') 

data = f.read()

Which loop is best suited when the number of iterations is not known?

Which keyword is used for a conditional statement in Python?

Which function converts a string to an integer?

What will be the result of this code?

s = 'python'

print(s[::2])

Which statement checks whether a value is not equal to 10?

What is the output of print('Hello' + 'World')?

What is the output of len('Python')?

What is the output of: 'python'.upper()?