PCPP1 Best Practices And Coding Conventions Practice Question
You are refactoring code that performs sensitive operations. Which of the following is the most secure practice for handling secret keys?
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
✓
Use environment variables to store sensitive configuration.
Hardcoding secrets is a major security vulnerability; using environment variables is the industry standard.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Use environment variables to store sensitive configuration.
Why this is correct
Environment variables keep secrets out of the source code repository.
- ✗
Encrypt the secrets and store them as constants in a module.
Why it's wrong here
The decryption key would still need to be stored somewhere, leading to the same problem.
- ✗
Store secrets in a private class attribute.
Why it's wrong here
Private attributes are easily accessible via introspection.
- ✗
Hardcode them as strings inside a 'config.py' file and ignore it in Git.
Why it's wrong here
This is error-prone and risks accidental commits.
About these practice questions
Courseiva writes every PCPP1 question from scratch — 209 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 PCPP1 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 PCPP1 exam.