DA0-002 Data Analysis Practice Question
A data analyst has a time series of monthly sales data. They observe that sales are consistently higher every December and lower every January. Which component of time series does this pattern represent?
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
✓
Seasonality
Regular patterns that repeat within one year are seasonality.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Irregular
Why it's wrong here
Irregular are random fluctuations.
- ✗
Cyclical
Why it's wrong here
Cyclical patterns are longer and irregular.
- ✓
Seasonality
Why this is correct
Seasonality refers to fixed periodic patterns within a year.
- ✗
Trend
Why it's wrong here
Trend is long-term direction.
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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.