DS0-001 Database Structures And SQL Practice Question
Which THREE of the following are standard SQL join types?
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
✓
LEFT
INNER, LEFT, and FULL are all standard SQL join types.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
TOP
Why it's wrong here
TOP is for result limits.
- ✓
LEFT
Why this is correct
Returns all left rows.
- ✗
SORT
Why it's wrong here
SORT is not a join type.
- ✓
INNER
Why this is correct
Returns matching rows.
- ✓
FULL
Why this is correct
Returns all rows from both.
About these practice questions
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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.