Practice Midterm — Cumulative (Weeks 1–7) · Objectives 1–5

Course: Introduction to Computer Science — CS1 / Programming Fundamentals in Python (CSCI 1101) · Silver Oak University (fictional sample) · Prof. Okafor
Scope: Cumulative — Weeks 1–7, Objectives 1–5 (computing & first programs · variables, types, expressions, I/O & strings · Booleans & conditionals · while & for loops · functions).
Format: 20 items, 100 points (5 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 midterm (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-exam-week-08-qti.xml (generated by the validated script — parses with 20 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 midterm. It mirrors the live L-midterm-week-08.md blueprint with fresh variants and shares none of its items — use it to rehearse.

---

Blueprint

#	Type	Concept	Obj
1	Multiple choice	Program vs algorithm	1
2	Multiple choice	Operator precedence (predict)	1
3	Multiple choice	Debugging — missing quotes	1
4	Multiple choice	Floor division & modulo (predict)	2
5	Multiple choice	int vs float (predict)	2
6	Multiple choice	String vs number + (predict)	2
7	Multiple choice	String index (predict)	2
8	Multiple choice	f-string (predict)	2
9	Multiple choice	Boolean logic (predict)	3
10	Multiple choice	if/elif/else — which branch (predict)	3
11	True / False	Comparison operators	3
12	Matching	Logical operator results	3
13	Multiple choice	while count (predict)	4
14	Multiple choice	range count (predict)	4
15	Multiple choice	Nested loop count (predict)	4
16	Multiple choice	for over a string (predict)	4
17	Multiple choice	Debugging — off-by-one	4
18	Multiple choice	Function return (predict)	5
19	Multiple choice	No return → None (predict)	5
20	Multiple choice	Parameters & arguments (predict)	5

Objective totals: Obj 1 = 3 · Obj 2 = 5 · Obj 3 = 4 · Obj 4 = 5 · Obj 5 = 3 → 20 items, 100 points. The midterm does not reach collections, files, algorithms, recursion, or OOP (Weeks 9–15), which are on the cumulative final.

---

Questions, key, and feedback

Q1 (Multiple choice). Which statement is true?
- A program is run top to bottom, one statement at a time ✅
- Computers guess what you meant
- An algorithm must be written in Python
- print stores a value for later
Feedback: Programs run top to bottom, literally; an algorithm is language-independent.

Q2 (Multiple choice). What does this print?

print(2 + 6 / 2)

• 4.0
• 5.0 ✅
• 4
• 5
  Feedback: / first: 6/2=3.0, then 2+3.0=5.0 (a float). (Run-verified.)

Q3 (Multiple choice). This crashes. Why?

print(Hello)

• Hello has no quotes, so Python reads it as an unknown name (NameError) ✅
• print is capitalized
• missing a colon
• nothing is wrong
  Feedback: Without quotes, Hello is treated as a name Python doesn't know: NameError. (Run-verified.)

Q4 (Multiple choice). What does this print?

print(17 // 5, 17 % 5)

• 3 2 ✅
• 3.4 2
• 2 3
• 3 0
  Feedback: 17//5=3 (floor), 17%5=2 (remainder). (Run-verified.)

Q5 (Multiple choice). What does this print?

print(9 / 3)

• 3
• 3.0 ✅
• 27
• 0.33
  Feedback: / always gives a float: 9/3 is 3.0. (Run-verified.)

Q6 (Multiple choice). What does this print?

print("5" + "5")

• 10
• 55 ✅
• 25
• an error
  Feedback: Strings join: '5'+'5' is '55' (not 10). (Run-verified.)

Q7 (Multiple choice). What does this print?

print("PYTHON"[-1])

• P
• N ✅
• O
• PYTHON
  Feedback: Index -1 is the last character: N. (Run-verified.)

Q8 (Multiple choice). What does this print?

name = "Ada"
print(f"Hi {name}!")

• Hi {name}!
• Hi Ada! ✅
• Hi name!
• f"Hi Ada!"
  Feedback: An f-string inserts the variable's value: Hi Ada! (Run-verified.)

Q9 (Multiple choice). What does this print?

print(False or (3 > 1))

• True ✅
• False
• 3
• an error
  Feedback: 3 > 1 is True; False or True is True. (Run-verified.)

Q10 (Multiple choice). What does this print?

age = 16
if age >= 18:
    print('adult')
elif age >= 13:
    print('teen')
else:
    print('child')

• adult
• teen ✅
• child
• nothing
  Feedback: 16 isn't >= 18 but is >= 13, so 'teen'. (Run-verified.)

Q11 (True / False). The expression 5 >= 5 evaluates to True.
- True ✅
- False
Feedback: True. >= means 'greater than OR equal to', and 5 equals 5. (Run-verified.)

Q12 (Matching). Match each logical expression to its value (True or False).
| Left | Correct match |
|---|---|
| True and False | False |
| True or False | True |
| not True | False |
| 10 > 3 | True |
Feedback: and needs both true; or needs one; not flips. (All run-verified.)

Q13 (Multiple choice). How many times does this print 'hi'?

i = 0
while i < 3:
    print('hi')
    i = i + 1

• 2
• 3 ✅
• 4
• forever
  Feedback: i goes 0,1,2 (three times) then 3 stops it: 3 prints. (Run-verified.)

Q14 (Multiple choice). What does this print?

print(list(range(3)))

• [1, 2, 3]
• [0, 1, 2] ✅
• [0, 1, 2, 3]
• [3]
  Feedback: range(3) starts at 0 and stops before 3: 0,1,2. (Run-verified.)

Q15 (Multiple choice). How many lines does this print?

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

• 5
• 6 ✅
• 3
• 2
  Feedback: The inner loop (3) runs fully for each outer step (2): 2*3 = 6 lines. (Run-verified.)

Q16 (Multiple choice). What does this print?

count = 0
for c in "code":
    count = count + 1
print(count)

• 3
• 4 ✅
• 1
• code
  Feedback: 'code' has 4 characters, so the loop runs 4 times: count is 4. (Run-verified.)

Q17 (Multiple choice). You want to print 1, 2, 3, 4, 5 but this prints 1, 2, 3, 4. What's the fix?

for i in range(1, 5):
    print(i)

• Change range(1, 5) to range(1, 6) — the stop is exclusive ✅
• Change print(i) to print(i+1)
• Use a while loop instead
• Nothing — it already prints 5
  Feedback: range stop is exclusive, so range(1,6) is needed to include 5.

Q18 (Multiple choice). What does this print?

def square(n):
    return n * n
print(square(5))

• 10
• 25 ✅
• 55
• None
  Feedback: square(5) returns 5*5 = 25. (Run-verified.)

Q19 (Multiple choice). What does this print?

def double(n):
    print(n * 2)
x = double(4)
print(x)

• 8 then 8
• 8 then None ✅
• 8 then 4
• None then 8
  Feedback: double prints 8 but returns nothing, so x is None. (Run-verified.)

Q20 (Multiple choice). What does this print?

def subtract(a, b):
    return a - b
print(subtract(10, 3))

• 13
• 7 ✅
• -7
• 30
  Feedback: Arguments map in order: a=10, b=3, so 10-3 = 7. (Run-verified.)

---

Answer key (quick reference)

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

Quality gate (self-checked)

• Structure: 20 items, 5 points each, 100 points; coverage Obj 1 = 3 · Obj 2 = 5 · Obj 3 = 4 · Obj 4 = 5 · Obj 5 = 3.
• Execution gate: PASS — all 16 predict-the-output / behavior items were re-run in Python and their keyed outputs confirmed (e.g. P2 5.0; P4 3 2; P6 55; P7 N; P8 Hi Ada!; P10 teen; P14 [0, 1, 2]; P18 25; P19 None).
• 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 exam: 0 items are shared with the live L-midterm-week-08.md (verified by full stem comparison).

Canvas placement block

canvas_object             = Quizzes::Quiz
title                     = "Practice Midterm — Cumulative (Weeks 1–7)"
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"