PCPP2 Design Patterns Practice Question
Which THREE of the following are essential properties of a robust State pattern implementation?
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
✓
The context should store the current state as a private member
State transitions, clear interface, and context awareness are essential.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The State interface should be as simple as possible
Why it's wrong here
The interface should include all state-specific behavior, which can be complex.
- ✓
The context should store the current state as a private member
Why this is correct
The context maintains the current state object internally.
- ✓
Each concrete state must be aware of the context to trigger transitions
Why this is correct
The state needs the context reference to change its current state.
- ✗
Every state should be a separate Singleton
Why it's wrong here
States are not required to be Singletons.
- ✓
State transitions must be clearly defined
Why this is correct
Without defined transitions, the state machine becomes unpredictable.
About these practice questions
Courseiva writes every PCPP2 question from scratch — 194 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or 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.