Tynker-Python Part 1-Basic

1. An identifier cannot begin with a number. Which of the following is NOT a valid identifier?

• • num

• • _num

• • NUM

• 1num_

An identifier can begin with an underscore (“_”).

• True

• • False

An identifier can begin with a number.

• • True

• False

In Python, an identifier may begin with an underscore or a letter. Which of the following is a valid identifier? Select all that apply.

• _total

• • 2_count

• NUM_COUNT

• dollar_sign

Which of the following is a valid function call?

• • forwad)

• • tu-left()

• forward()

• • forward(;

Select the following function calls that are invalid.

• ford)(

• $forDS()

• • forward()

• • turn_left()

How would you call a function named “my_function”?

• • Call my_function()

• • my_function

• • my_function))

• my_function()

Identifiers in Python are case-sensitive.

• True

• • False

78090 is a valid identifier in Python.

• • True

• False

Select the following invalid identifiers. (Identifiers are only allowed to start with an underscore or letter.)

• &ident

• 1ident

• • _ident

• -ident