DS0-001 Database Structures And SQL Practice Question
Which TWO of the following are potential issues when denormalizing a 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
✓
Data anomalies
Denormalization can lead to data anomalies (inconsistencies) and increased storage usage due to redundancy.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Data anomalies
Why this is correct
Updates may cause inconsistencies.
- ✗
Simplified data entry
Why it's wrong here
This is a potential benefit, not an issue.
- ✗
Improved schema flexibility
Why it's wrong here
This is a potential benefit, not an issue.
- ✗
Slower join performance
Why it's wrong here
Denormalization typically speeds up joins.
- ✓
Increased storage usage
Why this is correct
Redundant data consumes space.
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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.