P1 Unit 3 Lessons 5 - 8

Choose the two (2) statements that are true about functions

• Meaningful function names help people better understand programs.

• Functions in programming are named groupings of programming instructions.

• Meaningful function names help computers better understand programs.

• Functions in programming are useful mathematical tools for doing complex computations.

Select the two true statements about functions with parameters:

• Functions with parameters can be used to prevent the creation of duplicated code.

• Parameters help generalize the solution of a specific problem.

• Values do not need to be provided to a function with parameters in any particular order.

• Parameters can only be used once within the body of a function

Which of the following is NOT a true statement about functions?

• Functions cannot make calls to other functions written by the same programmer.

• Once defined, a function can be called many times from different parts of a program.

• Functions help break a problem into logical chunks.

• Functions help reduce the complexity of writing and maintaining programs.

• Functions are reusable programming abstractions.

Which of the following statements about writing functions and Top-Down Design is NOT true?

• Two programmers solving the same problem using Top-Down Design should arrive at identical programs.

• Top-Down Design relies upon identifying sub-problems of a larger problem.

• Top-Down Design assists in identifying the layers of functions that will be used to solve a programming problem.

• Top-Down Design leads to programs which feature multiple layers of abstraction.4

• Writing functions helps manage complexity in a program.

What is a function parameter?

• A way to give input to a function that controls how the function runs.

• Para-meter: a measure of the distance between a function's conception and implementation.

• A collection of commands that can be used in a programming language.

• Another name for the purpose of a function.

• A named memory location

What is an API?

• Application Program Interface

• Artificial Parameter Intelligence

• Abstract Programming Inheritance

• Applied Power Implementation

• Abstract Parameter Interface

Which of the following is NOT part of defining a function?

• Giving the parameters a value

• Adding code to the body of the function

• Identifying the parameters of the function

• Giving the function a name

Abstraction: a simplified representation of something more complex. Abstractions allow you to hide details to help you manage complexity, focus on relevant concepts, and reason about problems at a higher level.

• True

• False

Top Down Design: a problem solving approach (also known as stepwise design) in which you break down a system to gain insight into the sub-systems that make it up.

• True

• False

API is a collection of commands

• made available to a programmer

• / functions, typically with a shared purpose

• passed to a function to customize it for a specific need

• that describes the behavior of a command