WGU D335 Introduction to Programming in Python – Comprehensive Objective Assessment | Practice Questions & Answers | Study Guide & Exam Review | 2026/2027

WGU D335 |1




WGU D335 Introduction to Programming in Python –
Comprehensive Objective Assessment | Practice Questions
& Answers | Study Guide & Exam Review | 2026/2027


Table of Contents
1. Python Fundamentals and Syntax
2. Data Types and Structures
3. Control Flow and Loops
4. Functions and Modules
5. File I/O and Exception Handling
6. Problem Solving and Algorithms
7. String Manipulation and Formatting
8. Lists, Tuples, Dictionaries, and Sets
9. Comprehensions and Generators
10. Object-Oriented Programming Basics
11. Debugging and Error Types
12. Code Reading and Output Prediction

, WGU D335 |2

Question 1: A program consists of which three basic instruction types?
A. Read, Write, Execute
B. Input, Process, Output
C. Compile, Link, Run
D. Define, Call, Return

Correct Answer: B. Input, Process, Output
Every program follows the IPO model: it takes input (from keyboard, file, etc.), processes that
data (computations, logic), and produces output (to screen, file, etc.). This model is
fundamental to understanding how programs work.

Question 2: What is a variable in Python?
A. A fixed value that cannot change
B. A named reference to a value stored in memory
C. A type of loop structure
D. A function that prints output

Correct Answer: B. A named reference to a value stored in memory
A variable is a named item used to hold a value. It acts as a reference or label that points to
an object in memory. Variables can be reassigned to different values during program
execution.

Question 3: What is an algorithm?
A. A type of Python data structure
B. A sequence of instructions that solves a problem
C. A built-in Python function
D. An error in program execution

Correct Answer: B. A sequence of instructions that solves a problem
An algorithm is a step-by-step sequence of instructions designed to solve a specific problem
or accomplish a task. Algorithms are language-independent and form the foundation of all
computer programs.

Question 4: What does the assignment operator = do in Python?
A. Compares two values for equality
B. Assigns a value to a variable

, WGU D335 |3

C. Adds two values together
D. Checks if a variable exists

Correct Answer: B. Assigns a value to a variable
The = operator assigns the value on the right to the variable on the left. The comparison
operator for equality is ==. Confusing the two is a common beginner mistake.

Question 5: What is the output of print(type(3.14))?
A. <class 'int'>
B. <class 'float'>
C. float
D. 3.14

Correct Answer: B. <class 'float'>
The type() function returns the data type of its argument. Since 3.14 is a floating-point
number, its type is <class 'float'>. The output includes the angle brackets and the word
"class".

Question 6: Which operator returns the remainder of division?
A. /
B. //
C. %
D. **

Correct Answer: C. %
The modulo operator % returns the remainder after division. For example, 10 % 3 returns 1.
The / operator is true division, // is floor division, and ** is exponentiation.

Question 7: Evaluate: 17 // 5
A. 3.4
B. 3
C. 4
D. 2

Correct Answer: B. 3
The // operator is floor division (integer division). It returns the quotient without the
remainder. 17 divided by 5 is 3.4, which floors to 3. The fractional part is discarded.

, WGU D335 |4

Question 8: What is the value of 2 ** 4?
A. 6
B. 8
C. 16
D. 32

Correct Answer: C. 16
The ** operator is exponentiation. 2 ** 4 means 2 raised to the power of 4, which equals 2 ×
2 × 2 × 2 = 16. This is different from 2 * 4, which equals 8.

Question 9: Which variable name is invalid in Python?
A. _myVar
B. myVar2
C. 2myVar
D. my_var

Correct Answer: C. 2myVar
Variable names cannot start with a digit. They can start with a letter or an underscore. The
other options are all valid variable names. This rule prevents ambiguity with numeric literals.

Question 10: What does len("Hello World") return?
A. 10
B. 11
C. 12
D. 9

Correct Answer: B. 11
The len() function returns the number of characters in a string, including spaces. "Hello
World" has 11 characters: H, e, l, l, o, space, W, o, r, l, d.

Question 11: Which function converts the string "123" to an integer?
A. str("123")
B. int("123")
C. float("123")
D. chr("123")

Correct Answer: B. int("123")
The int() function converts a string or number to an integer. The string must represent a valid