CSA Visualforce Pages 4

Question 1

What keyword makes an Apex variable exempt from being stored in the Visualforce view state?

Accepted Answer

transient

Answer

Variables declared with the transient keyword in Apex are not serialized into the Visualforce view state, reducing its size.

Question 2

Which component is used to display Salesforce error messages and validation rule failures on a Visualforce page?

Accepted Answer

<apex:pageMessages>

Answer

<apex:pageMessages> displays all messages generated for the current page, including validation errors and custom messages added via ApexPages.addMessage().

Question 3

How can a Visualforce page pass a record ID to a custom controller on page load?

Accepted Answer

Using ApexPages.currentPage().getParameters()

Answer

In the Apex controller constructor, ApexPages.currentPage().getParameters().get('id') retrieves URL parameters passed to the page.

Question 4

Which Visualforce feature allows a page to be used as a PDF document?

Accepted Answer

Set renderAs="pdf" on <apex:page>

Answer

Setting renderAs="pdf" on the <apex:page> tag instructs Salesforce to render the Visualforce page as a PDF document.

Question 5

What is the correct way to call a controller method when a user changes a select list value on a Visualforce page?

Accepted Answer

Use with event="onchange" inside

Answer

nested inside with event="onchange" triggers an AJAX call to the controller when the selection changes.

(CSA) Certified Salesforce Administrator Practice Test

(CSA) Certified Salesforce Administrator Practice Test

CSA Visualforce Pages 4