Exam Certified Platform Developer II topic 1 question 99 discussion

Correct Answer: ABE By default, pages that do not have the cache attribute set are cached for ten minutes (600 seconds). So it already defatuls to cache=true and it will not have effect in page loading. Only the components in the body of the are processed by the server, thereby increasing the performance of the page.

In order to reduce the view state, make use of the following: 1. "Transient" keyword - to declare instance variables that can't be saved, and shouldn't be transmitted as part of the view state for a VF page. 2. Minimize the number of forms i.e <apex:form> on a page. Make use of <apex:actionRegion> instead of using 2 or more forms. 3. Refine your SOQL to retrieve only the data needed. 4. All public and private date members present in standard, custom and controller extensions are saved as a part of view state. so use transient variables which are not stored in state of page. 5. Instead of using <apex:commandlink> or <apex:commandbutton>, go for <apex:outputlink> https://help.salesforce.com/s/articleView?id=000384480&type=1

Addressing view state, rerendering, and optimizing SOQL will all improve page performance.

ans is ABE. for C I cannot find any documentation which says standard stylesheets in a page will affect the performance.

I reviewed the documentation, it is set to FALSE for INTERNAL users by default, hence, it needs turned on. If the question asked about customers, the default is TRUE, cache is already enabled. Reference: https://developer.salesforce.com/docs/atlas.en-us.pages.meta/pages/pages_compref_page.htm My guess is that B is not relevant because it explicitly states that it is a multi-page interface, so it is less likely there will be a need for re-rendering.