Programming Techniques Quiz

What is the difference between a function and a procedure?

• Functions are only used for maths

• Functions return a value, procedures do not

• Procedures return a value, functions do not

• Functions are not reusable

What does this code do? open("scores.txt", "r")

• Writes to a file

• Deletes a file

• Opens a file for reading

• Opens a file for editing

What is a constant in programming?

• A variable that can be changed anytime

• A loop control variable

• A fixed value that cannot change during execution

• A random number generator

Which of the following is a valid array operation in Python?

• array.read()

• append(array, item)

• array.append(item)

• array.join(item)

What does the .readline() function do?

• Reads a list of integers

• Reads a single line from a file

• Skips a line in an array

• Reads a command from the console

Why must you close a file after writing to it?

• To make the program run faster

• So other programs can use the file

• To delete the file

• To reset the contents of the file

What symbol is used for modulus in Python?

• //

• %

• **

• ==

What does the random.randint(1,10) function do?

• Selects a float between 1 and 10

• Selects a string randomly

• Returns a random integer between 1 and 10

• Repeats a loop

How many data types can an array store at one time?

• One

• Two

• Unlimited

• It depends on the array type

What is the purpose of a subprogram (function or procedure)?

• To store passwords

• To break a program into reusable blocks

• To create graphics

• To store multiple values in a single variable