SNOW-CAD Working with Data Practice Question
An admin wants to create a report showing the number of incidents created each day for the past month. Which type of report should be used?
⚠ Common exam trap
ServiceNow often tests the distinction between line charts and bar charts for time-based data, where candidates mistakenly choose a line chart because they think it is always best for time series, but a bar chart is more appropriate for discrete daily counts as it avoids implying a continuous trend between days.
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
✓
Bar chart
A bar chart is the correct choice because it is ideal for comparing discrete categories (such as days) over a period (the past month), showing the count of incidents per day. In ServiceNow, the 'Report Builder' allows you to create a bar chart with the 'Created on' field grouped by day and the 'Count' aggregation, which directly visualizes the number of incidents created each day.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
List report
Why it's wrong here
List reports show raw data, not aggregated counts.
- ✗
Pie chart
Why it's wrong here
Pie charts show proportions, not counts over time.
- ✗
Line chart
Why it's wrong here
A line chart plots continuous data points over a time interval, but the requirement is to count discrete daily totals for a fixed 30-day period. The correct option uses a bar chart, which groups each day as a distinct category, whereas a line chart implies a trend between intervals and can misrepresent non-continuous daily counts. It is tempting because line charts are commonly used for time-series data, such as tracking incident volume over months or years where interpolation between points is meaningful.
- ✓
Bar chart
Why this is correct
Bar chart effectively shows counts per day.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SNOW-CAD practice question is part of Courseiva's free ServiceNow 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 SNOW-CAD exam.