Week 2 Class

In Python, which symbol is used to start a single-line comment?

• //

• /*

• #

• '''

Which escape sequence is used for a newline character in Python?

• \t

• \b

• \\

• \n

What is the output of the expression 3 * 'abc' in Python?

• abcabcabc

• 3abc

• abc3

• TypeError

What will be the result of the following Python expression: 'Hello' + 'World'?

• Hello World

• HelloWorld

• Hello+World

• Error

How are multi-line comments represented in Python?

• Using triple single quotes (''')

• Using triple double quotes (""")

• By using the / symbol multiple times

• By using the \\ symbol multiple times

Which of the following is a valid floating-point number in Python?

• 4.5

• 4

• '4.5'

• True

What does the escape sequence \t represent in Python?

• Newline

• Tab

• Backspace

• Backslash

Which of the following is not a valid way to define a string in Python?

• 'Hello'

• "Hello"

• '''Hello'''

• [Hello]

What type of notation is this number written in: 3.14e2?

• Decimal notation

• Binary notation

• Scientific notation

• Hexadecimal notation

What is the recommended naming convention for Python variables?

• Use only uppercase letters

• Use underscores to separate words in variable names

• • Start variable names with a number

• Use spaces in variable names