Unit 3 Quiz

Which of the above actions would not be helpful in designing and developing an app?

• Interviewing potential users of the app

• writing the entire program code before testing any parts of it

• observing users attempting to use the app

Choose all of the following that do not best describe the purpose of a design specification?

• Tracking errors that arise through user testing

• Documenting comments that will need to be added to a program

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

• Listing detailed questions that will be asked of users during interviews

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

• Red

• Orange

• Blue

• Green

If the user clicks the "topButton" button what color will “topButton” be when this program finishes running?

• Red

• Blue

• Green

• Orange

If the user does not click button what color will “topButton” be when this program starts?

• Red

• Blue

• Green

• Orange

The following program is run. The user does not click the "topButton". What will be displayed in the console?

• cat

  bird

  dog

• cat

  dog

• bird

• cat

  dog

  bird

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

• cherry

  cherry

• apple

  banana

  cherry

• banana

  cherry

  cherry

• banana

  cherry

  apple

Which lines of code will not result in an error?

• Line 1

• Line 2

• Line 3

• Line 4

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

• Event-driven programming is always faster than sequential programming.
• Sequential programming follows a linear flow, while event-driven programming is based on responding to events.
• Both sequential and event-driven programming execute tasks in parallel.
• Sequential programming is based on responding to events, while event-driven programming follows a linear flow.

Which of the following is a reason to include comments in programs?

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

• Comments help programmers debug issues in their own code

• Comments help document how code was written for other programmers to use

• Comments enable programmers to track their work throughout the development process