
AP Computer Science A Quarterly Exam
Authored by Mouna Boutemine
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12th Grade

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which sorting algorithm repeatedly finds the lowest item from a portion of a list and swaps it with the item at index?
linear sort
selection sort
insertion sort
sequential sort
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which sorting algorithm sequentially removes an item from a list and adds it back to the list in the appropriate position relative to the previous items in the list?
sequential sort
selection sort
insertion sort
mergesort
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which algorithm uses a temporary array during the sorting process?
selection sort
insertion sort
mergesort
binary search
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Given the following code segment: public static int whatzOutput(int x) { if (x == 0) { return(x); } else { return(whatzOutput(x-1)); } } Which is displayed when whatzOutput(-1) is called?
0
-1
-2
No value is returned because this call results in infinite recursion.
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Which algorithms take a divide and conquer approach?
I. Selection Sort
II. Merge Sort
III. Quick Sort
IV. Bubble Sort
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Which algorithms have a running time of n²?
a. I and II only
I. selection sort
IV. binary search
III. mergesort
II. insertion sort
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Which algorithms are implemented recursively?
a. I and II only
I. selection sort
III. mergesort
II. insertion sort
IV. binary search
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