Determine How to Optimize Community Performance. EXPERIENCE-CLOUD-CONSULTANT Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   Which SOQL technique helps minimize data retrieval time in a Community?

   • AQuerying all records and filtering in the browser
   • BUsing a query that retrieves only the fields needed for display
   • CSelecting all fields using SELECT *
   • DAvoiding the use of indexes to speed up queries
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2. 7foundation · easy

   Which setting in Experience Cloud controls how long a browser should cache a static resource?

   • ACache-Control header
   • BContent-Type header
   • CX-Frame-Options header
   • DStrict-Transport-Security header
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4. 8application · medium

   A custom Apex action in a community returns a large JSON payload with hundreds of fields for each record, but the Lightning component only displays a few fields. Users report slow response times. Which optimization should the developer apply?

   • AIncrease the Apex heap size to allow larger payloads.
   • BUse the 'with sharing' keyword to restrict data access.
   • CLimit the fields in the SOQL query to only those needed by the component.
   • DUse a static resource to store the field names and reference them in the component.
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5. 9application · medium

   A community site uses a large custom JavaScript library that is only needed on a specific page. Currently, the library is loaded on every page, slowing down all pages. Which optimization should the admin implement?

   • AInline the library directly into every page's HTML to avoid a separate request.
   • BUse a CDN to host the library and load it on all pages.
   • CMinify the library and load it on all pages to reduce its size.
   • DLoad the library only on the page that needs it, using a static resource and a script tag in the page's HTML.
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6. 10application · medium

   A community page has a custom Lightning Web Component that displays a list of cases with their account names. The component currently makes a separate Apex call for each case to get the account name, causing slow load times. Which approach should the developer take to improve performance?

   • ACreate a separate Apex method for each field and call them asynchronously from the component.
   • BStore the account names in a static resource and reference them from the component.
   • CUse a single SOQL query that joins Account and Case, and pass the data to the component in one Apex call.
   • DUse Lightning Data Service to load each case and its account individually.
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