Practice Final — Cumulative (All Objectives 1–8)

Course: Introduction to Computer Science — CS1 / Programming Fundamentals in Python (CSCI 1101) · Silver Oak University (fictional sample) · Prof. Okafor
Scope: Cumulative — all 8 objectives, Weeks 1–15: computing & errors · variables/types/expressions · I/O & strings · Booleans & conditionals · loops · functions · lists/tuples/dicts/sets · strings/files/exceptions · algorithms, recursion & intro OOP.
Format: 25 items, 100 points (4 points each) · auto-gradable only (multiple-choice, multiple-answer, matching, true/false) with predict-the-output, debugging, and Boolean-result items. AI is not permitted on the practice final (ungraded rehearsal).
Points: 100 · Assignment group: Practice (ungraded) (0% — rehearsal) · Window: opens at the start of the module; due 6 days later · allowed attempts: 1.

Human-readable exam with its vetted answer key and one-line feedback. Import-ready Classic QTI 1.2 in O-practice-final-week-16-qti.xml (generated by the validated script — parses with 25 items, every single-answer item exactly one correct). Execution gate: PASS — every keyed output/result was produced by running the code.

This is the ungraded practice final. It mirrors the live L-final-week-16.md blueprint with fresh variants and shares none of its items — use it to rehearse.

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Blueprint

#	Type	Concept	Obj
1	Multiple choice	Precedence (predict)	1
2	Multiple choice	Errors	1
3	Multiple choice	print commas (predict)	1
4	Multiple choice	Float division (predict)	2
5	Multiple choice	Floor division (predict)	2
6	Multiple choice	Slicing (predict)	2
7	Multiple choice	type conversion (predict)	2
8	Multiple choice	Boolean (predict)	3
9	Multiple choice	if/elif/else (predict)	3
10	True / False	Boolean result	3
11	Multiple choice	while (predict)	4
12	Multiple choice	range (predict)	4
13	Multiple choice	for over string (predict)	4
14	Multiple choice	function return (predict)	5
15	Multiple choice	scope	5
16	Matching	Function terms	5
17	Multiple choice	list method (predict)	6
18	Multiple choice	dict KeyError (predict)	6
19	Multiple choice	tuple immutability	6
20	Multiple choice	string method (predict)	7
21	Multiple choice	string immutability (predict)	7
22	Multiple choice	exception type	7
23	Multiple choice	Big-O	8
24	Multiple choice	recursion (predict)	8
25	Multiple choice	OOP attribute (predict)	8

Objective totals: Obj 1 = 3 · Obj 2 = 4 · Obj 3 = 3 · Obj 4 = 3 · Obj 5 = 3 · Obj 6 = 3 · Obj 7 = 3 · Obj 8 = 3 → 25 items, 100 points. Cumulative over the whole course.

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Questions, key, and feedback

Q1 (Multiple choice). What does this print?

print(2 * 5 - 3)

• 4
• 7 ✅
• 13
• -1
  Feedback: 2*5=10 first, then 10-3=7.

Q2 (Multiple choice). A program runs print("hi" (missing close paren). What error?
- NameError
- SyntaxError ✅
- ValueError
- no error
Feedback: A missing ) breaks the grammar: SyntaxError.

Q3 (Multiple choice). What does this print?

print("a", "b", "c")

• abc
• a b c ✅
• a,b,c
• 'a' 'b' 'c'
  Feedback: Commas put a single space between the items: a b c.

Q4 (Multiple choice). What does this print?

print(15 / 5)

• 3
• 3.0 ✅
• 75
• 0.33
  Feedback: / always gives a float: 15/5 is 3.0.

Q5 (Multiple choice). What does this print?

print(20 // 6)

• 3 ✅
• 3.33
• 2
• 4
  Feedback: // floors the result: 20//6 is 3.

Q6 (Multiple choice). What does this print?

s = "PROGRAM"
print(s[2:5])

• OGR ✅
• OGRA
• ROG
• GRA
  Feedback: [2:5] takes indices 2,3,4: O, G, R.

Q7 (Multiple choice). What does this print?

print(int('7') + 3)

• 73
• 10 ✅
• an error
• 7
  Feedback: int('7') is the number 7, plus 3 is 10.

Q8 (Multiple choice). What does this print?

print(True and False)

• True
• False ✅
• None
• an error
  Feedback: and needs BOTH true; one is False, so False.

Q9 (Multiple choice). What does this print?

x = 100
if x >= 90:
    print('A')
elif x >= 80:
    print('B')
else:
    print('C')

• A ✅
• B
• C
• nothing
  Feedback: 100 >= 90 is true, so the first branch runs: A.

Q10 (True / False). The expression (2 > 1) or (1 > 2) evaluates to True.
- True ✅
- False
Feedback: True — or needs only one true part, and 2 > 1 is true.

Q11 (Multiple choice). What does this print?

n = 5
count = 0
while n > 0:
    count += 1
    n -= 1
print(count)

• 4
• 5 ✅
• 6
• forever
  Feedback: It loops while n is 5,4,3,2,1 — five times — so count is 5.

Q12 (Multiple choice). What does this print?

print(list(range(1, 6)))

• [1, 2, 3, 4, 5] ✅
• [1, 2, 3, 4, 5, 6]
• [0, 1, 2, 3, 4, 5]
• [1, 6]
  Feedback: range(1,6) is 1..5 (stop 6 excluded).

Q13 (Multiple choice). What does this print?

n = 0
for c in "python":
    n += 1
print(n)

• 5
• 6 ✅
• 1
• python
  Feedback: 'python' has 6 letters, so the loop runs 6 times.

Q14 (Multiple choice). What does this print?

def add_one(n):
    return n + 1
print(add_one(9))

• 10 ✅
• 91
• 9
• None
  Feedback: add_one(9) returns 9+1 = 10.

Q15 (Multiple choice). What happens?

def f():
    y = 10
f()
print(y)

• prints 10
• prints None
• NameError (y is local to f) ✅
• prints 0
  Feedback: y is local to f; using it outside raises NameError.

Q16 (Matching). Match each Python keyword or term to its meaning.
| Left | Correct match |
|---|---|
| def | Begins a function definition |
| return | Sends a value back to the caller |
| argument | A value passed into a call |
| None | What a function with no return gives back |
Feedback: def defines; return sends back; an argument is passed in; no return gives None.

Q17 (Multiple choice). What does this print?

nums = [3, 1, 2]
nums.append(4)
print(nums)

• [3, 1, 2]
• [3, 1, 2, 4] ✅
• [4, 3, 1, 2]
• [1, 2, 3, 4]
  Feedback: .append(4) adds 4 to the END of the list.

Q18 (Multiple choice). What does this print?

d = {"x": 1}
try:
    print(d["y"])
except KeyError:
    print("no key")

• 1
• no key ✅
• y
• None
  Feedback: d['y'] is a missing key (KeyError), so the except runs: no key.

Q19 (Multiple choice). What happens if you try t = (1, 2); t[0] = 9?
- t becomes (9, 2)
- TypeError — tuples are immutable ✅
- t becomes [9, 2]
- nothing
Feedback: Tuples can't be changed; assigning to an element raises TypeError.

Q20 (Multiple choice). What does this print?

print("a,b,c".split(","))

• ['a', 'b', 'c'] ✅
• 'abc'
• ['a,b,c']
• a b c
  Feedback: .split(',') breaks the string at commas into a list of 3 strings.

Q21 (Multiple choice). What does this print?

s = "hi"
s.upper()
print(s)

• HI
• hi ✅
• Hi
• an error
  Feedback: Strings are immutable: .upper() returns a NEW string; s is unchanged unless you reassign it.

Q22 (Multiple choice). Which exception does int('hello') raise?
- ValueError ✅
- KeyError
- TypeError
- SyntaxError
Feedback: Converting non-numeric text with int() raises ValueError.

Q23 (Multiple choice). Linear search through a list of n items has which time complexity?
- O(1)
- O(log n)
- O(n) ✅
- O(n squared)
Feedback: Linear search may check every item: O(n).

Q24 (Multiple choice). What does this print?

def countdown(n):
    if n == 0:
        print('done')
        return
    print(n)
    countdown(n - 1)
countdown(2)

• 2 1 done ✅
• done 2 1
• 2 1 0
• 1 2 done
  Feedback: Prints 2, then 1, then the base case prints done last.

Q25 (Multiple choice). What does this print?

class Box:
    def __init__(self, size):
        self.size = size
b = Box(7)
print(b.size)

• 7 ✅
• Box
• size
• AttributeError
  Feedback: init stored self.size = 7, so b.size is 7.

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Answer key (quick reference)

Q	Answer	Q	Answer
1	B	14	A
2	B	15	C
3	B	16	1-to-1 (see above)
4	B	17	B
5	A	18	B
6	A	19	B
7	B	20	A
8	B	21	B
9	A	22	A
10	True	23	C
11	B	24	A
12	A	25	A
13	B

Quality gate (self-checked)

• Structure: 25 items, 4 points each, 100 points; coverage Obj 1 = 3 · 2 = 4 · 3 = 3 · 4 = 3 · 5 = 3 · 6 = 3 · 7 = 3 · 8 = 3.
• Execution gate: PASS — all 20 predict-the-output / behavior items were re-run in Python and their keyed outputs confirmed (e.g. P1 7; P4 3.0; P6 OGR; P11 5; P17 [3, 1, 2, 4]; P18 no key; P20 ['a', 'b', 'c']; P24 countdown; P25 7).
• Single-answer integrity: every multiple-choice and true/false item has exactly one correct option; matching items pair one-to-one; multiple-answer items key the exact set.
• Integrity vs. the practice final: 0 items are shared with the live L-final-week-16.md (verified by full stem comparison).

Canvas placement block

canvas_object             = Quizzes::Quiz
title                     = "Practice Final — Cumulative"
assignment_group          = "Practice (ungraded)"
points_possible           = 100
grading_type              = points
available_from_offset_days = 0
due_offset_days           = 6
published                 = true
allowed_attempts          = 1
shuffle_answers           = true
ai_permitted              = false
provenance                = "~ Prof. Okafor's edition · Fall 2026 · built with thecoursemaker.com"