SNOW-CAD Designing interfaces and user experiences Practice Question
A dashboard with multiple indicators is loading slowly. The dashboard contains live data from several tables with complex conditions. Which optimization should be applied first?
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
✓
Convert indicators to use aggregated data sources instead of live queries.
Using aggregate indicators reduces the number of live queries by pre-calculating data, which is the most effective optimization for dashboard performance.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use client-side scripts to load data asynchronously.
Why it's wrong here
Client-side scripting cannot directly improve server-side performance.
- ✗
Reduce the number of indicators to one.
Why it's wrong here
Overly extreme; the dashboard may lose necessary information.
- ✓
Convert indicators to use aggregated data sources instead of live queries.
Why this is correct
Aggregate indicators pre-compute data, reducing real-time queries and improving performance.
- ✗
Increase the cache timeout for all indicators.
Why it's wrong here
Caching can help but does not address live query load; may also show stale data.
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