FC0-U71 Data and Database Fundamentals Practice Question
Which DBMS is an example of a proprietary relational database system?
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
✓
Oracle Database
Oracle Database is proprietary (commercial). MySQL, PostgreSQL, and SQLite are open-source.
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 open-source (though Oracle owns it, it's still available under open-source license).
- ✗
PostgreSQL
Why it's wrong here
PostgreSQL is open-source.
- ✗
SQLite
Why it's wrong here
SQLite is open-source.
- ✓
Oracle Database
Why this is correct
Oracle is a proprietary commercial RDBMS.
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