DA0-002 Data Acquisition and Preparation Practice Question
Which data sampling method involves selecting every k-th element from a list after a random start?
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
✓
Systematic sampling
Systematic sampling selects every k-th item after a random start.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Systematic sampling
Why this is correct
Correct: selects every k-th element.
- ✗
Cluster sampling
Why it's wrong here
Selects entire groups randomly.
- ✗
Stratified sampling
Why it's wrong here
Divides population into strata and samples each.
- ✗
Simple random sampling
Why it's wrong here
Each element has equal chance, no fixed interval.
Go deeper
Related to this question
About these practice questions
Courseiva writes every DA0-002 question from scratch — 986 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
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.