Code.org Unit 3 Quiz

Which of the following best describes one of the benefits of using an iterative and incremental process of

program development?

• It allows programmers to implement algorithmic solutions to otherwise unsolvable problems.

• It eliminates the need for programmers to test completed programs.

• It enables programmers to create programs that use the lowest-level abstractions available.

• It helps programmers identify errors as components are added to a working program.

How are procedures (functions) abstractions in computer science?

• They are blocks of code that do something specific

• They represent the lowest level of code for the computer to run

• They use actual values to represent concepts

• They can be used without understanding or seeing the code used.

What do parameters used in a procedure provide?

• A way to get values into the procedure, making the code more flexible

• A way to return values calculated in the procedure back to the calling program

• A way to call a procedure from within another procedure

• A way to connect an API to the procedure

Why do we have high-level programming languages?

• To make it easier for people to write code

• So code will compile faster, increasing efficiency

• To make code reusable, to speed development time

• To prevent errors in programs

What is an example of a coding-related abstraction?

• Using comments in your code

• The CPU (Central Processing Unit)

• Pressing a button on an app

• A constant value

A collection of commands made available to a programmer

• ASCII

• Heuristic

• API

• DNS

An extra piece of information passed to a function to customize it for a specific need

• Parameter

• Library

• Function

• Block

The action of doing something over and over again.

• Sequencing

• Loop

• Agregation

• Iteration

What is displayed as a result of running the program?

• Foxtrot

• Hotel

• November

• Yankee

A piece of code that you can easily call over and over again. 

• Repeat
• Functions
• Procedures
• Fractions