PCPP2 Advanced OOP And Performance Practice Question
Which TWO of the following statements about the Python Method Resolution Order (MRO) are true?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
You can inspect MRO using the __mro__ attribute
MRO uses the C3 linearization algorithm and it can be inspected via the __mro__ attribute or the mro() method.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
You can inspect MRO using the __mro__ attribute
Why this is correct
__mro__ stores the calculated resolution order.
- ✓
The mro() method returns the linearization of classes
Why this is correct
The mro() method is a class method that returns the MRO list.
- ✗
MRO applies only to single inheritance
Why it's wrong here
MRO is essential for handling multiple inheritance.
- ✗
MRO is determined by the depth-first search
Why it's wrong here
Python uses the C3 linearization algorithm, not simple DFS.
- ✗
MRO changes randomly at runtime
Why it's wrong here
MRO is calculated at class creation time.
About these practice questions
This PCPP2 question is part of Courseiva's 194-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Python Institute exam blueprint
This PCPP2 practice question is part of Courseiva's free Python Institute certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PCPP2 exam.