PCPP2 Advanced OOP And Performance Practice Question
In a multi-threaded application, you need to ensure that shared state is modified safely. Which tool is the most appropriate for this task?
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
✓
threading.Lock
The threading.Lock primitive allows only one thread to access a resource at a time.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
time.sleep
Why it's wrong here
sleep just pauses the thread, it doesn't protect state.
- ✗
sys.settrace
Why it's wrong here
sys.settrace is for debugging/tracing execution.
- ✓
threading.Lock
Why this is correct
Locks provide mutual exclusion to prevent race conditions.
- ✗
gc.collect
Why it's wrong here
gc.collect forces garbage collection.
About these practice questions
One of 194 original PCPP2 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. 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.