AP CSP Practice Test Procedures Lists

Big Idea 3 Practice Test - Part 3

Procedures & Lists

25 Multiple-Choice Questions

⏱ 30 minutes recommended 📊 25 questions 🎯 Big Idea 3 Focus

Test Instructions

  • This test focuses on Big Idea 3: Procedures, parameters, return values, lists, and list algorithms
  • Select one answer for each question
  • You can change your answers before submitting
  • Click "Submit Test" when finished to see your score and explanations
  • For AP exam practice, try to complete the test in 30 minutes
Question 1
Consider this procedure:
PROCEDURE calculate(a, b) { result ← a * 2 + b RETURN result }
What is returned by calculate(5, 3)?
Question 2
Given the list: myList ← [10, 20, 30, 40, 50]
What does myList[3] return? (assume list indices start at 1)
Question 3
What does LENGTH([5, 10, 15, 20]) return?
Question 4
After this code executes, what is in newList?
oldList ← [1, 2, 3] newList ← [] APPEND(newList, oldList[2]) APPEND(newList, oldList[1])
Question 5
What is the purpose of a parameter in a procedure?
Question 6
Consider: numbers ← [7, 3, 9, 1, 5]
After REMOVE(numbers, 3), what is in numbers?
Question 7
What does this procedure return?
PROCEDURE mystery(list) { total ← 0 FOR EACH item IN list { total ← total + item } RETURN total } result ← mystery([2, 4, 6])
Question 8
After: INSERT(myList, 2, 99) where myList = [10, 20, 30], what is myList?
Question 9
Which statement about procedures is MOST accurate?
Question 10
What does this code produce?
nums ← [5, 10, 15, 20, 25] result ← [] FOR EACH n IN nums { IF (n MOD 10 = 0) { APPEND(result, n) } } DISPLAY(result)
Question 11
A procedure findMax(list) should return the largest value in a list. Which is a correct implementation?
Question 12
After these statements, what is myList?
myList ← [1, 2, 3] APPEND(myList, 4) REMOVE(myList, 1)
Question 13
What does this procedure do?
PROCEDURE process(data) { count ← 0 FOR EACH item IN data { IF (item > 0) { count ← count + 1 } } RETURN count }
Question 14
Consider: items ← ["A", "B", "C", "D"]
What is items[LENGTH(items)]?
Question 15
What does this return?
PROCEDURE combine(list1, list2) { result ← [] FOR EACH item IN list1 { APPEND(result, item) } FOR EACH item IN list2 { APPEND(result, item) } RETURN result } output ← combine([1, 2], [3, 4])
Question 16
Which operation adds an element to the END of a list?
Question 17
What does this procedure return for findAverage([10, 20, 30])?
PROCEDURE findAverage(numbers) { sum ← 0 FOR EACH num IN numbers { sum ← sum + num } RETURN sum / LENGTH(numbers) }
Question 18
After executing this, what does result contain?
data ← [5, 12, 8, 3, 15] result ← [] FOR EACH val IN data { IF (val < 10) { APPEND(result, val) } }
Question 19
Which is a valid reason to use procedures in programming?
Question 20
Given: colors ← ["red", "blue", "green"]
After colors[2] ← "yellow", what is colors?
Question 21
What is returned by this procedure?
PROCEDURE check(values) { FOR EACH v IN values { IF (v < 0) { RETURN false } } RETURN true } result ← check([5, 0, 3, -2, 1])
Question 22
After: newList ← []
APPEND(newList, 10)
APPEND(newList, 20)
INSERT(newList, 1, 5)
What is newList?
Question 23
What does this procedure return for reverseList([1, 2, 3])?
PROCEDURE reverseList(original) { reversed ← [] i ← LENGTH(original) REPEAT UNTIL (i = 0) { APPEND(reversed, original[i]) i ← i - 1 } RETURN reversed }
Question 24
Which statement about list indices is correct in AP CSP pseudocode?
Question 25
What does this return?
PROCEDURE doubleAll(nums) { result ← [] FOR EACH n IN nums { APPEND(result, n * 2) } RETURN result } output ← doubleAll([3, 5, 7])
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out of 25

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Answer Review

← Test 3.2: Conditionals Back to Hub Test 4.1: Networks →

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