DS0-001 Data Querying And Analysis Practice Question
When analyzing JSON data stored in a relational database using SQL, how do you typically access nested key-value pairs?
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
✓
Using path-based operators
Modern SQL engines provide specific operators or functions (like the '->>' operator in PostgreSQL) to navigate JSON paths.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Using path-based operators
Why this is correct
JSON path accessors are required to traverse hierarchies.
- ✗
Converting to XML first
Why it's wrong here
This adds unnecessary overhead and complexity.
- ✗
Using the SELECT * command
Why it's wrong here
SELECT * returns the entire JSON blob as a single object.
- ✗
Using standard JOINs
Why it's wrong here
JOINs link tables, not document keys.
About these practice questions
This DS0-001 question is part of Courseiva's 216-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam 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 CompTIA exam blueprint
This DS0-001 practice question is part of Courseiva's free CompTIA 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 DS0-001 exam.