CodeHS - AP CSP - Python Midterm (Units 3-7) Medium Difficulty

AP CSP Units 3–7 Medium Difficulty Quiz

Auto-Graded • 40 Questions

Unit 3: Variables, Expressions, Tracing

1. What is printed?


x = 3
y = x * 2
x = y - 1
print(x + y)

A. 7
B. 8
C. 9
D. 11

2. What is the value of result?


a = 4
b = 7
result = (a + b) // 3 + b % a

A. 2
B. 3
C. 4
D. 6

3. Which evaluates to True?
A. "5" + 2 == 7
B. 5 > 3 and not (2 > 3)
C. 5 == "5"
D. not(5 > 2 or 1 < 3)

4. What does the following print?


x = 12
print(x % 5 + x // 4)

A. 3
B. 4
C. 5
D. 6

5. Which expression is equivalent to: “x is NOT between 10 and 20 inclusive”?
A. not (10 <= x <= 20)
B. x < 10 and x > 20
C. x < 10 or x > 20
D. x <= 10 or x >= 20

Unit 4: Conditionals

6. What is printed?


x = 5
if x % 2 == 1:
    if x > 3:
        print("A")
    else:
        print("B")
else:
    print("C")

A. A
B. B
C. C
D. Nothing

7. Which Boolean is True only when x and y are different?
A. x == y
B. x != y
C. x and y
D. not x and not y

8. What is printed?


a = 10
b = 4
if a / b > 2:
    print("high")
else:
    print("low")

A. high
B. low
C. Error
D. Nothing

9. What is printed?


x = 8
y = 3
if x % y == 2:
    print("A")
elif x % y == 1:
    print("B")
else:
    print("C")

A. A
B. B
C. C
D. Nothing

10. Which is equivalent to NOT (A and B)?
A. (not A) or (not B)
B. (not A) and (not B)
C. A or B
D. A != B

Unit 5: Loops

11. What is printed?


sum = 0
for i in range(1, 6):
    sum += i
print(sum)

A. 10
B. 12
C. 15
D. 21

12. How many times does this loop run?


count = 10
while count > 3:
    count -= 3

A. 1
B. 2
C. 3
D. 4

13. What is printed?


for i in range(3):
    for j in range(2):
        print(i + j)

A. 0 1 1 2 2 3
B. 0 1 2 3 4 5
C. 0 1 2 2 3 4
D. 0 1 1 2 2 3

14. What is printed?


x = 7
while x % 3 != 0:
    x += 2
print(x)

A. 7
B. 9
C. 11
D. 13

15. What is printed?


total = 1
for i in [2,3,4]:
    total *= i
print(total)

A. 18
B. 20
C. 24
D. 32

16. What happens?


i = 0
while i < 5:
    print(i)

A. Prints 0–4
B. Prints nothing
C. Infinite loop
D. Error

17. What is printed?


for i in range(1,10,3):
    print(i)

A. 1 3 5 7 9
B. 1 4 7
C. 1 4 7 10
D. 3 6 9

18. What is printed?


x = 20
while x >= 10:
    x -= 4
print(x)

A. 8
B. 4
C. 0
D. -4

Unit 6: Lists and Strings

19. What is printed?


nums = [2, 4, 8, 11, 14]
print(nums[nums[1]])

A. 2
B. 4
C. 8
D. 14

20. What is the list after execution?


a = [1,2,3,4]
b = a
b[2] = 99

A. [1,2,3,4]
B. [1,2,99,4]
C. [1,99,3,4]
D. Error

21. What is printed?


lst = [10,20,30,40]
print(lst[-2])

A. 10
B. 20
C. 30
D. 40

22. What is printed?


items = ["a","b","c","d","e"]
print(items[1:4:2])

A. ['b','c']
B. ['b','d']
C. ['a','c']
D. ['c','e']

23. What is printed?


s = "CSPROCKS"
print(s[2:6])

A. CSPRO
B. PROCK
C. PROC
D. SROC

24. What is printed?


pets = ["cat","dog","bird","fish"]
print(len(pets) - pets.index("bird"))

A. 1
B. 2
C. 3
D. 4

25. Which list contains only elements at even indexes? data = [10,20,30,40,50]
A. data[1::2]
B. data[2::2]
C. data[::2]
D. data[::-1]

26. What is printed?


lst = [3,6,9]
for i in range(len(lst)):
    lst[i] += i
print(lst)

A. [3,6,9]
B. [3,7,11]
C. [3,6,12]
D. [4,7,10]

Unit 7: Functions

27. What is printed?


def f(x): return x + 2
print(f(f(3)))

A. 5
B. 6
C. 7
D. 8

28. What is printed?


def mystery(a,b):
    if a > b:
        return a - b
    return b - a
print(mystery(8,3))

A. 3
B. 5
C. 8
D. 11

29. What is printed?


def foo(n):
    if n % 2 == 0:
        return n // 2
    return n * 3
print(foo(foo(4)))

A. 1
B. 2
C. 3
D. 6

30. What is printed?


def g(x,y): return x*y - x
print(g(3,4))

A. 6
B. 9
C. 12
D. 15

31. What is printed?


def h(a): return a + 1
def k(a): return h(a) * 2
print(k(3))

A. 4
B. 6
C. 8
D. 10

32. What is printed?


def f(x):
    x += 1
    return x
a = 5
f(a)
print(a)

A. 5
B. 6
C. 7
D. Error

33. What is printed?


def m(x): return x * x
print(m(m(2)))

A. 2
B. 4
C. 16
D. 256

34. What is printed?


def combine(a,b):
    return str(a) + str(b)
print(combine(3, combine(1,2)))

A. 312
B. 3212
C. 31212
D. 312

35. What is printed?


def calc(a,b,c): return a + b * c
print(calc(2,3,4))

A. 14
B. 20
C. 24
D. 9

36. What is printed?


def fun(n): return n % 4
print(fun(fun(fun(10))))

A. 0
B. 1
C. 2
D. 3

37. What is returned?


def foo(a,b):
    if a > b:
        return True
    return False
print(foo(5,1))

A. True
B. False
C. 1
D. Error

38. What is printed?


def p(x): return x - 1
def q(x): return p(x) * 2
print(q(6))

A. 5
B. 10
C. 12
D. 14

39. What is printed?


def f(n):
    if n == 0:
        return 1
    return n + f(n-1)
print(f(3))

A. 3
B. 4
C. 6
D. 7

40. What is printed?


def r(a,b): return (a + b) // 2
print(r(7,4))

A. 4
B. 5
C. 6
D. 7

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