DA0-002 Data Acquisition and Preparation Practice Question
A data analyst needs to sample 1000 customers from a database of 100,000 customers for a survey, ensuring every customer has an equal chance of selection. Which sampling method is most appropriate?
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
✓
Simple random sampling
Simple random sampling gives each individual an equal chance of being selected.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Cluster sampling
Why it's wrong here
Cluster sampling selects groups.
- ✗
Stratified sampling
Why it's wrong here
Stratified sampling divides into subgroups.
- ✗
Systematic sampling
Why it's wrong here
Systematic sampling uses fixed intervals.
- ✓
Simple random sampling
Why this is correct
Equal probability for all.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DA0-002 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 DA0-002 exam.