Quick Answer
The correct answer is the Sankey diagram, as it is specifically designed to visualize the flow and volume of data between a source and a destination. In network traffic analysis, a Sankey diagram for the relationship between source and destination uses the width of its connecting arcs to represent the magnitude of traffic, making it ideal for mapping source IPs to destination ports. On the Splunk SPLK-1003 exam, this question tests your ability to match visualization types to analytical goals, often appearing in the "Search & Reporting" domain. A common trap is choosing a column chart, which compares discrete values, or a choropleth map, which is for geographic data—neither shows directional flow. For a quick memory tip, think of a Sankey diagram as a "flow highway": the thicker the road, the more traffic between the source and destination.
This SPLK-1003 practice question tests your understanding of advanced visualization and lookups. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
An analyst needs to create a visualization that shows the relationship between source IP and destination port in network traffic. Which visualization type is most appropriate?
Choropleth map
Why wrong: Choropleth maps display geographic data, not network flows.
Sankey diagram
Sankey diagrams effectively illustrate flows between two dimensions.
Single value
Why wrong: Single value shows one metric, not relationships.
Column chart
Why wrong: Column charts are for comparing categories, not flows.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Sankey diagram
A Sankey diagram is designed to show flow relationships between sources and destinations. Choropleth maps are geographic, single values show one number, and column charts are for comparisons.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Choropleth map
Why it's wrong here
Choropleth maps display geographic data, not network flows.
Sankey diagram
Why this is correct
Sankey diagrams effectively illustrate flows between two dimensions.
Related concept
Static NAT maps one inside address to one outside address.
Single value
Why it's wrong here
Single value shows one metric, not relationships.
Column chart
Why it's wrong here
Column charts are for comparing categories, not flows.
Common exam traps
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Trap categories for this question
Command / output trap
Single value shows one metric, not relationships.
Detailed technical explanation
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related SPLK-1003 NAT questions on configuration and troubleshooting.
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FAQ
Advanced Visualization and Lookups — This question tests Advanced Visualization and Lookups — Static NAT maps one inside address to one outside address..
The correct answer is: Sankey diagram — A Sankey diagram is designed to show flow relationships between sources and destinations. Choropleth maps are geographic, single values show one number, and column charts are for comparisons.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related SPLK-1003 NAT questions on configuration and troubleshooting.
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 24, 2026
This SPLK-1003 practice question is part of Courseiva's free Splunk 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 SPLK-1003 exam.
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