AP Computer Science Principles QUESTIONS (MAX POINTS) 1. If the following program is supposed to put down seven tennis balls. Where is the error?

1 function start() {
2 placeSevenBalls();
3 }
4
5 function placeSevenBalls() {
6 for (var i = 0; i <= 7; i++) {
7 putBall();
8 }
9 }
Options:
Line 2
Line 5
Line 6
Line 7

2. What is the output of the following code segment?

var numResult = 12 + 17;
println(numResult);

var stringResult = 12 + "17";
println(stringResult);

Options:
29
29

29
1217

29
12
17

1217 1217

3. What is printed when the following code is run?

function tripleNumber(x){
return 3 * x;
}

function start(){
var y = 2;
var tripledY = tripleNumber(y);
var result = tripleNumber(tripledY);
print(result);
}
Options:
2

6

18

27

4. Consider the array below.

var characterList = ["Luke", "C3PO", "Han", "Leia", "Obi Wan"];
Which line of code will correctly change "C3PO" to "R2D2"?
Options:
characterList["C3PO"] = "R2D2";

characterList["R2D2"] = "C3PO";

characterList[2] = "R2D2";

characterList[1] = "R2D2";

5. What is the output of the following program?

function start(){
var arr = [2, 15, 12, 65, 17, 83];
var elem = arr. remove(2);
println(arr);
}

Options:
15, 12, 65, 17, 83

12, 65, 17, 83

2, 15, 12, 65

2, 15, 65, 17, 83