Python for Beginners Quiz (Grok Academy Modules 1-10)

What is the correct syntax to print "Hello, World!" in Python?

• echo "Hello, World!"

• printf("Hello, World!")

• print("Hello, World!")

• display("Hello, World!")

Answer explanation

The correct syntax to print text in Python is using the print() function. Therefore, 'print("Hello, World!")' is the right choice, while the other options are not valid Python syntax.

What will the following code output?

• 16

• 11

• 13

• 10

Answer explanation

The code likely involves a calculation that results in 13. This could be from a series of operations or function calls that sum to 13, making it the correct answer among the choices provided.

Which of these is a valid variable name in Python?

• 1variable

• variable_one

• variable-one

• variable one

Answer explanation

In Python, variable names must start with a letter or underscore and can contain letters, numbers, and underscores. 'variable_one' is valid, while '1variable' starts with a number, 'variable-one' uses a hyphen, and 'variable one' has a space.

What is the result of the following code?

• 5

• 5.0

• 10.0

• Error

Answer explanation

The code likely performs a calculation resulting in a float. The correct answer is 5.0, indicating a floating-point result, while 5 is an integer. Thus, 5.0 is the accurate representation of the result.

Which data type is used to store a True/False value in Python?

• int

• str

• bool

• float

Answer explanation

In Python, the 'bool' data type is specifically designed to store True/False values. The other options, 'int', 'str', and 'float', represent different data types and are not suitable for boolean values.

What does this code output?

• 8

• 53

• 5

• Error

Answer explanation

The code likely performs a calculation that results in 8. This could be from an arithmetic operation or a function returning this value. Therefore, the correct output is 8.

Which of the following statements about Python comments is true?

• Comments start with `//`

• Comments start with `#`

• Comments need to be enclosed in quotes

• Comments are not supported in Python

Answer explanation

In Python, comments are indicated by the `#` symbol. This allows developers to add notes or explanations in the code without affecting its execution. The other options are incorrect as they refer to comment syntax in other programming languages.

What is the output of this code?

• 1, 2, 3

• 0, 1, 2

• 0, 1, 2, 3

• Error

Answer explanation

The code likely uses a loop that starts from 0 and ends before 3, producing the output 0, 1, 2. Therefore, the correct answer is 0, 1, 2.

Which function is used to take user input in Python?

• get()

• input()

• scan()

• read()

Answer explanation

The correct function to take user input in Python is 'input()'. This function prompts the user for input and returns it as a string, making it essential for interactive programs.

What is the correct way to open a file for reading in Python?

• open("file.txt", "r")

• open("file.txt", "w")

• open("file.txt", "a")

• open("file.txt", "rb")

Answer explanation

The correct way to open a file for reading in Python is using 'open("file.txt", "r")'. The 'r' mode specifies that the file is opened for reading. The other options ('w', 'a', 'rb') are for writing, appending, or reading in binary mode.