PCPP2 Interprocess Communication Practice Question
Which module allows you to run external programs and interact with their input/output streams?
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
✓
subprocess
The subprocess module is the recommended way to spawn new processes and connect to their pipes.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
sys
Why it's wrong here
Sys provides system-specific parameters.
- ✓
subprocess
Why this is correct
Subprocess is the standard for managing processes.
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multiprocessing
Why it's wrong here
Multiprocessing is for running Python code in parallel.
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os
Why it's wrong here
Os.system is outdated for this purpose.
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threading
Why it's wrong here
Threading is for intra-process concurrency.
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.