FC0-U71 Data and Database Fundamentals Practice Question
Which of the following is a characteristic of a NoSQL database compared to a relational database?
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
✓
Supports flexible schema
NoSQL databases often have a flexible schema, allowing different structures in the same collection.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Requires normalized data
Why it's wrong here
Normalization is a relational concept; NoSQL often denormalizes.
- ✗
Enforces strict schema definition
Why it's wrong here
Relational databases enforce strict schema; NoSQL is schema-flexible.
- ✓
Supports flexible schema
Why this is correct
NoSQL databases allow different documents to have different fields.
- ✗
Uses SQL for queries
Why it's wrong here
Many NoSQL databases use their own query languages.
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Same concept, more angles
2 more ways this is tested on FC0-U71
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Which TWO of the following are key characteristics of a NoSQL database compared to a traditional relational database?
easy- A.Strict schema enforcement
- B.Uses SQL as the query language
- C.ACID transactions are always guaranteed
- ✓ D.Flexible schema design
- ✓ E.Horizontal scalability
Why D: NoSQL databases often use flexible schemas (allowing varied data structures) and can scale horizontally across many servers.
Variation 2. Which of the following best describes a NoSQL database?
easy- A.It stores data in tables with rows and columns.
- ✓ B.It provides a flexible schema for unstructured data.
- C.It uses SQL for querying.
- D.It enforces strict referential integrity.
Why B: NoSQL databases are designed for flexible schema and can handle unstructured data, often used for big data and real-time web applications.
JA
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