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Understanding Return Values and Modifying Parameters in Functions

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Questions and Answers

What is the purpose of breaking down an algorithm into smaller subprograms?

To reduce code duplication
To make the program more complex
To slow down the execution of the program
To make the program more modular and easier to understand (correct)

What is the purpose of the addInterest function?

To display the balance
To add interest to a balance (correct)
To subtract interest from a balance
To calculate the rate of interest

What is the data type of text in Python?

float
str (correct)
bool
int

What is enclosed with quotation marks or apostrophes in Python?

A string (D) Signup and view all the answers

What is the purpose of using input() in Python?

To get input from the user (C) Signup and view all the answers

What is the benefit of using functions in programming?

To make the program more modular and reduce code duplication (A) Signup and view all the answers

What is the primary purpose of a return value in a function?

To send information from a function back to the calling program (C) Signup and view all the answers

When a function receives a parameter by value, what happens to the original variable?

The original variable remains unchanged (D) Signup and view all the answers

What is the term for passing variables themselves as parameters to a function?

Passing by reference (A) Signup and view all the answers

Why did the amount not change in the test() function?

Because the amount was passed by value and not by reference (C) Signup and view all the answers

What type of data is passed by value in most programming languages?

Numbers and strings (B) Signup and view all the answers

What happens to the formal parameter when a new value is assigned to it in a function?

The formal parameter is updated, but the original variable remains unchanged (D) Signup and view all the answers

What does the ord() function return?

The numeric (ordinal) code of a single character (C) Signup and view all the answers

What is the purpose of the chr() function?

To convert a numeric code to the corresponding character (D) Signup and view all the answers

How does the encoding algorithm work?

It converts each character of a string to its numeric code (A) Signup and view all the answers

What is the purpose of the accumulator variable in the decoder?

To append each decoded character to the end of the message (D) Signup and view all the answers

What is the output of the expression ord('a')?

97 (A) Signup and view all the answers

What is the purpose of the for loop in the encoder?

To iterate over each character in the message (D) Signup and view all the answers

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