2026/2027: Complete Exam-Style Questions with Detailed Rationales
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TABLE OF CONTENTS
Section 1 | Python Syntax, Variables, and Data Types | Q1 – Q20
Section 2 | Control Flow (Conditionals and Loops) | Q21 – Q40
Section 3 | Functions and Scope | Q41 – Q60
Section 4 | Data Structures (Lists, Dictionaries, Tuples, Sets) | Q61 – Q80
Section 5 | File Handling, Exceptions, and Basic Algorithms | Q81 – Q100
Instructions: Choose the single best answer. Pass: 80% in 120 minutes.
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SECTION 1: PYTHON SYNTAX, VARIABLES, AND DATA TYPES Q1 – Q20
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Question 1 of 100
A junior developer at a logistics firm is writing a script to track shipment weights. She
assigns the value 42.5 to a variable using the statement weight = 42.5. Later, she
needs to confirm the internal type representation Python uses for this value.
A. weight is stored as a string because numeric literals without quotes become strings
in Python.
B. weight is stored as a float because the literal contains a decimal point. ✓ CORRECT
C. weight is stored as an integer because Python rounds decimal values during
assignment.
D. weight is stored as a double because Python uses C-style double precision for all
decimals.
Correct Answer: B
,Rationale: Python interprets numeric literals with a decimal point as the float data
type, so 42.5 becomes a floating-point object. Option A is incorrect because quotes are
required to create a string literal in Python. In practice, using type(weight) would
confirm the float classification during debugging.
Question 2 of 100
During a code review at a healthcare startup, a senior engineer notices a variable named
patientCount = 150. The team lead reminds everyone that PEP 8 conventions
should be followed for all new Python modules.
A. The variable should be renamed to patientcount to avoid any uppercase letters in
local variables.
B. The variable should be renamed to PatientCount because module-level variables
use PascalCase.
C. The variable should be renamed to patient_count because snake_case is the
standard for variable names. ✓ CORRECT
D. The variable should be renamed to PATIENT_COUNT because constants are always
uppercase with underscores.
Correct Answer: C
Rationale: PEP 8 recommends snake_case for variable and function names to improve
readability across Python codebases. Option B describes PascalCase, which is reserved
for class names, not variables. Following this convention makes code immediately
recognizable to other Python developers.
Question 3 of 100
A data analyst at a retail company needs to convert a user-input string into an integer
for inventory calculations. The user enters "250" through a console prompt, and the
analyst stores it in raw_input. Which expression correctly produces the integer value?
,A. int(raw_input) converts the string representation into an integer value. ✓
CORRECT
B. str(raw_input) preserves the numeric value while changing the type to integer.
C. float(raw_input) casts the string directly to an integer by truncating decimals.
D. integer(raw_input) is the built-in constructor Python provides for this
conversion.
Correct Answer: A
Rationale: The built-in int() function parses a string and returns a corresponding
integer object. Option B is wrong because str() converts to a string, not an integer.
This pattern appears constantly when processing form data or CSV fields that arrive as
text.
Question 4 of 100
A DevOps engineer is automating server checks and writes the expression result =
. She expects a precise quotient for a capacity-planning report. What value does
result hold in Python 3?
A. result holds 4 because the / operator performs floor division by default.
B. result holds 4.25 because Python 3 always returns a float from true division. ✓
CORRECT
C. result holds 1 because integer division truncates both operands first.
D. result holds 4.0 because the / operator converts the result to float only when
needed.
Correct Answer: B
Rationale: In Python 3, the / operator performs true division and returns a float even
when dividing two integers. Option A confuses / with //, which is the floor division
operator. Knowing this distinction prevents subtle bugs in financial or scientific
calculations.
, Question 5 of 100
A quality assurance specialist is verifying string behavior in a Python 2-to-3 migration.
He runs the code greeting = "Hello" + " " + "World" and inspects the object
created. What is the outcome?
A. Python raises a TypeError because the + operator cannot concatenate string literals.
B. The variable greeting references a single string object containing Hello World.
✓ CORRECT
C. The variable greeting becomes a list with three separate elements: ["Hello", "
", "World"].
D. The variable greeting stores a tuple because the + operator between strings
creates tuples.
Correct Answer: B
Rationale: The + operator concatenates strings in Python, producing a new single string
object without any separator beyond what is explicitly included. Option A is incorrect
because string concatenation with + is fully supported. This operation is fundamental
when building file paths or display messages dynamically.
Question 6 of 100
A university research assistant is cleaning survey data and encounters a variable
response = None. She needs to document what this assignment signifies for her lab
notebook.
A. response is a placeholder indicating the variable currently points to no object. ✓
CORRECT
B. response is an empty string equivalent to "" and behaves like a string in all
contexts.
C. response is the integer zero and will return 0 if used in arithmetic expressions.
D. response is a boolean False and can be used interchangeably with False in logic.