FC0-U71 Data and Database Fundamentals Practice Question
Which of the following is an example of a NoSQL database that stores data as JSON-like documents?
⚠ Common exam trap
The trap is assuming that any database with JSON support (like MySQL or PostgreSQL) qualifies as a NoSQL document store — candidates must remember that NoSQL document databases like MongoDB store data natively as JSON-like documents, whereas relational databases only add JSON as a feature.
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
✓
MongoDB
MongoDB is a document-oriented NoSQL database that stores data in BSON (Binary JSON) documents, making it the canonical example of a JSON-like document store. It allows flexible, schema-less documents and is widely used for content management, catalogs, and real-time analytics.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
MySQL
Why it's wrong here
MySQL is a relational database management system using SQL and structured tables, not JSON-like document storage. It is tempting because it is widely deployed and offers a JSON data type, but that remains a column type inside a relational engine, not a NoSQL document database.
- ✓
MongoDB
Why this is correct
MongoDB stores records as BSON documents, a binary JSON-like format, satisfying the stem's requirement for a document-oriented NoSQL database. Unlike key-value stores such as Redis or column-family databases such as Cassandra, it organises data into flexible, schema-less documents, making it the archetypal example of the document model.
- ✗
PostgreSQL
Why it's wrong here
PostgreSQL is a relational database using SQL and tabular schemas, not JSON-like document storage. It is tempting because it does offer JSONB columns, but that is an extension within a relational engine, not a document-oriented NoSQL database such as MongoDB.
- ✗
SQLite
Why it's wrong here
SQLite is an embedded relational database using SQL tables, not a document-oriented NoSQL store. It is tempting because it is lightweight and file-based, which can resemble a simple document store, but it still enforces relational schemas rather than storing JSON-like documents natively.
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Last reviewed September 2026 · checked against the official CompTIA exam blueprint
This FC0-U71 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 FC0-U71 exam.