Exam Code: PCAP-31-03
Exam Name: Certified Associate in Python Programming Exam
Price: $68.00 $58.88
Exam Questions: 147 Q&As
Last Updated: 2026-10-09
Prepare for the PCAP-31-03 Certified Associate Python Programmer exam with focused practice in modules, exceptions, string processing, object-oriented programming, comprehensions, lambdas, closures, and file I/O.
PCAP certification validates your ability to design, write, debug, and refactor intermediate Python programs. The exam rewards precise code tracing and a practical understanding of how Python objects behave - not just memorization of syntax.
PCAP-31-03 sits between entry-level Python knowledge and professional-level development. It expects candidates to read short programs accurately, organize code into modules and packages, work with text and files, handle exceptions, and model problems with classes and inheritance.
The exam is suitable for learners, junior developers, testers, analysts, and career changers who already understand Python fundamentals and want to demonstrate intermediate programming ability. There is no formal prerequisite, although entry-level knowledge equivalent to PCEP is recommended.
PCAP-31-03 remains the active exam version. PCAP-31-04 is under development, so confirm the version shown during registration and avoid mixing future-version objectives into a PCAP-31-03 study plan.
The five official sections total 40 items. Object-Oriented Programming carries the greatest weight, but the remaining domains still account for nearly two-thirds of the exam.
Use import variants, dir(), sys.path, __name__, __init__.py, and user-defined packages. Also know the tested functions in the math, random, and platform modules.
Trace try, ordered except branches, else, and finally. Be able to raise, inspect, group, and subclass exceptions without confusing the exception class with the caught instance.
Work with ASCII, Unicode, UTF-8, indexing, slicing, immutability, comparisons, membership, and common string methods. These questions are often short but punish off-by-one errors and incorrect assumptions about mutation.
Distinguish classes from instances, class variables from instance variables, and inheritance from composition. Expect constructors, methods, name mangling, introspection, overriding, polymorphism, multiple inheritance, and class metadata.
Build filtered and nested list comprehensions, use lambdas with map() and filter(), recognize closures, and perform text or binary file operations. Pay special attention to file modes, stream behavior, exceptions, and bytearray.
First, separate class attributes from per-instance state. Second, trace exception matching from the most specific handler to broader handlers. Third, remember that strings are sequence-like but immutable: indexing and slicing read values, while apparent “changes” create new strings.
Days 1–3: modules, packages, and standard-library functions. Days 4–5: exceptions. Days 6–7: strings. Days 8–11: classes, inheritance, and introspection. Days 12–13: comprehensions, lambdas, closures, and I/O. Use day 14 for a timed 40-question simulation and error review.
Before choosing an answer, write down the object type, current value, scope, and execution order. For inheritance questions, identify where each attribute or method is resolved. For file and exception questions, separate the success path from the failure path. This small routine prevents many avoidable mistakes.
These five study questions cover selected PCAP-31-03 objectives. Technical wording has been normalized for accuracy. They are not official Python Institute exam items and do not represent the full 40-question exam.
Which except clause catches an Exception and binds the caught exception object to the name e?
Correct answer: C
Explanation: The as e clause assigns the caught exception instance to e, allowing the handler to inspect its message, args, or other attributes.
Common mistake: Treating exception syntax like a function call or assignment statement.
Why the other options are wrong: A and B are invalid Python syntax. D is false because Python explicitly supports binding the exception instance with as.
Which two statements about object-oriented programming in Python are true? (Choose two.)
Correct answers: A and C
Explanation: Encapsulation groups state and behavior while controlling how internal data is accessed. Inheritance lets a subclass reuse or specialize behavior defined by a superclass.
Common mistake: Reversing the relationship between a class and an object. A class is the model or recipe; an object is an instance created from it.
Why the other options are wrong: B is too absolute and reverses common UML generalization notation, whose hollow triangle points toward the superclass. D swaps the definitions of class and object.
open() FunctionWhich two statements about Python’s open() function are true? (Choose two.)
Correct answers: A and B
Explanation: A successful open() call returns a file object. Its mode argument is optional and defaults to text reading mode, "r".
Common mistake: Confusing Python’s file object with a low-level integer file descriptor. The original wording has been corrected here: open() does not return an integer handle.
Why the other options are wrong: C uses nonexistent names; Python exposes standard streams as sys.stdin, sys.stdout, and sys.stderr. D is false because a failure raises an exception such as FileNotFoundError.
What is a variable stored separately in each object created from a class called?
Correct answer: D
Explanation: An instance variable belongs to one particular object. Different instances of the same class can store different values in attributes with the same name.
Common mistake: Choosing class variable because both forms are normally accessed through attribute syntax.
Why the other options are wrong: A contradicts the question. B describes data associated with the class and potentially shared through inheritance. C is understandable informal wording but is not the standard Python term tested by the syllabus.
Which two statements about Python class constructors are true? (Choose two.)
Correct answers: A and C
Explanation: The __init__() instance method receives the new instance—conventionally named self—and initializes its state after creation.
Common mistake: Calling __init__() the object-creation method in a strict technical sense. Python creates the instance through __new__(); __init__() initializes it.
Why the other options are wrong: B is false because __init__() must return None. D is false because redefining a method replaces the earlier definition; Python does not overload methods by signature in the conventional sense.
Prepare for the exam version shown in your registration. PCAP-31-03 is currently active, while PCAP-31-04 is being developed. Do not assume that materials for the two versions are interchangeable.
No formal prerequisite is required. PCEP-level knowledge is recommended because PCAP assumes you already understand variables, control flow, functions, collections, and basic Python syntax.
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Practice tracing types, scope, object state, control flow, and output until every answer follows from the code.
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