Code.org Unit 3 Review: Intro to App Design

Front

Which of the actions below would usually be helpful in designing and developing an app? 1. Interviewing potential app users 2. Writing the entire program code before testing any parts of it 3. Observing users attempt to use the app

Back

Numbers 1 & 3

Front

Which of the following best describes the purpose of a design specification? A. Tracking errors that arise through user testing, B. Documenting comments that will need to be added to a program, C. Describing the requirements for how a program will work or users will interact with it, D. Listing detailed questions that will be asked of users during interviews

Back

Describing the requirements for how a program will work or users will interact with it.

Front

What will the “background-color” of the “topButton” be when the program is finished running?

Back

blue

Front

If the user does NOT click the button what color will “topButton” be when this program finishes running?

Back

Blue

Front

What will be displayed in the console when the "topButton" button is clicked ONCE? Options: A. cat bird dog, B. dog cat bird, C. cat dog bird, D. bird cat dog

Back

cat dog bird

Front

The following program is run. Then the user clicks the “bottomButton” ONCE and then clicks the “topButton” ONCE. What will be displayed in the console?

Back

chicken pig cow

Front

The following program is run. Then the user clicks the “bottomButton” TWO TIMES. What will be displayed in the console?

Back

banana dragon fruit cherry cherry

Front

Which line of code in this program is MOST likely to result in an error? Options: A. Line 1, B. Line 2, C. Line 3, D. Line 4

Back

Line 2

Front

Which of the following BEST describes the differences between sequential and event-driven programming?

Back

In sequential programming commands run in the order they are written. In event-driven programming some commands run in response to user interactions or other events.

Front

Which of the following is NOT a reason to include comments in programs? A. Comments help the computer decide whether certain components of a program are important., B. Comments help programmers debug issues in their own code, C. Comments help document how code was written for other programmers to use, D. Comments enable programmers to track their work throughout the development process

Back

Comments help the computer decide whether certain components of a program are important.