PCPP1 Networking And Restful Apis Practice Question
You are parsing a JSON response that contains a large list of objects. Which technique is most memory-efficient for processing these objects?
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
✓
Iterate through the list object after parsing
If you have control over the response, streaming the JSON or processing it iteratively (if supported by the parser) saves memory.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Convert the entire JSON to a string then split
Why it's wrong here
This loads the entire content into memory.
- ✗
Use the 'json.loads()' method on the full response
Why it's wrong here
This creates a full object structure in memory.
- ✓
Iterate through the list object after parsing
Why this is correct
Accessing the list is efficient, though the full structure is loaded.
- ✗
Use a custom regex to parse the JSON
Why it's wrong here
Regex is not reliable for parsing nested JSON structures.
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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.