DA0-002 Data Analysis Practice Question
In a time series analysis, a retail analyst observes consistent peaks in sales every December and troughs every February. This pattern repeats annually. Which component of time series does this 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
Seasonality refers to regular patterns that repeat over fixed periods, such as months or quarters.
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 components are random and unpredictable.
- ✓
Seasonality
Why this is correct
Seasonality is predictable and repeats over fixed intervals.
- ✗
Trend
Why it's wrong here
Trend is long-term direction, not regular periodic patterns.
- ✗
Cyclical
Why it's wrong here
Cyclical patterns are irregular and have no fixed period.
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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.