DA0-002 Data Analysis Practice Question
A stock analyst is analyzing monthly sales data for a retail company and observes a consistent pattern of high sales every December. This pattern is most likely an example of which time series component?
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
Seasonality refers to regular, predictable patterns that repeat at fixed intervals (e.g., yearly, monthly). The consistent December peak indicates a seasonal pattern.
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, unpredictable fluctuations.
- ✗
Cyclical
Why it's wrong here
Cyclical patterns are longer and irregular.
- ✓
Seasonality
Why this is correct
Correct: regular pattern within a fixed period.
- ✗
Trend
Why it's wrong here
Trend is long-term direction, not repeating yearly pattern.
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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.