SNOW-CAD Working with Data Practice Question
Which TWO methods are commonly used to prevent performance issues when using GlideRecord in a client script?
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
✓
Use GlideAjax to call a script include for server-side processing.
Options D and E are correct. Using GlideAjax to call a script include moves processing to the server, avoiding synchronous blocking and performance hits in the client. Using setLimit() reduces the number of records retrieved, minimizing data transfer and processing. Option A is incorrect because GlideRecord is not directly available in client scripts and attempting to use it can cause performance issues. Option B is incorrect because synchronous GlideRecord queries block the UI, degrading user experience. Option C is incorrect because business rules run server-side and do not address client-side performance; GlideAjax is the appropriate client-server communication method.
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 GlideRecord directly in client scripts.
Why it's wrong here
Wrong: GlideRecord is not available in client scripts.
- ✗
Use synchronous GlideRecord queries for immediate results.
Why it's wrong here
Wrong: Synchronous calls can freeze the UI.
- ✗
Use a business rule instead to perform the query.
Why it's wrong here
Wrong: Business rules are server-side, not client.
- ✓
Use GlideAjax to call a script include for server-side processing.
Why this is correct
Correct: Client scripts should avoid direct GlideRecord calls.
- ✓
Limit the number of records retrieved using setLimit().
Why this is correct
Correct: Limiting results reduces data transfer.
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