CSP Unit 3 Assessment

Front

Actions in the picture helpful in designing and developing an app?

Back

I and III only

Front

Purpose of a design specification?

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 user clicks the "topButton" button ONCE? Options: cat, bird, dog, dog, cat, bird, cat, dog, bird, bird, cat, dog

Back

cat, dog, bird

Answer explanation

Once the program is run, lines 1 and 5 will run, in that order, right away, meaning that the first two words displayed will be cat and dog respectively. The word bird will be displayed once the user clicks the “topButton” and causes line 3 to run.

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

Answer explanation

Walking through the code run based on the description in the question:

Line 7 will run as soon as the program is run, displaying chicken to the console.

The user clicks the “bottomButton” ONCE which causes line 5 to run, displaying pig to the console.

The user clicks the “topButton” ONCE which causes line 2 to run, displaying cow to the console.

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

Answer explanation

Walking through the code run based on the description in the question:

Lines 4 and 8 will run as soon as the program is run, in that order, displaying banana then dragon fruit to the console.

The user clicks the “bottomButton” the first time which causes line 6 to run, displaying cherry to the console.

The user clicks the “bottomButton” the second time which causes line 6 to run again, displaying cherry to the console again.

Front

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

Back

Line 2

Answer explanation

When printing characters to the console, they must have quotes around them to mark them as a string. Numbers can be printed as strings as in “100” or as numbers with no quotes, as in 100.

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?

Back

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