PD1 Visualforce Pages 5

Question 1

Which Visualforce component is used to upload files to Salesforce from a page?

Accepted Answer

<apex:inputFile>

Answer

<apex:inputFile> renders a file input element that binds to an Apex Blob property, allowing file content to be uploaded to Salesforce.

Question 2

When using a StandardSetController in Visualforce, which method retrieves the current page's records?

Accepted Answer

getRecords()

Answer

The getRecords() method on StandardSetController returns the list of sObject records for the current page in a paginated list.

Question 3

How do you invoke a JavaScript function from a Visualforce controller action callback?

Accepted Answer

All of the above

Answer

, , and all support an oncomplete attribute that executes JavaScript after the AJAX action completes.

Question 4

What is the correct syntax to reference an Apex controller property named 'accountName' in a Visualforce expression?

Accepted Answer

{!accountName}

Answer

Visualforce expressions reference controller properties directly without a qualifier, using the format {!propertyName}.

Question 5

Which Visualforce component wraps content to be conditionally shown or hidden using CSS without removing it from the DOM?

Accepted Answer

<apex:outputPanel>

Answer

<apex:outputPanel> wraps content in a div or span and can be hidden via CSS while keeping the content in the DOM, unlike the 'rendered' attribute.

(PD1) Salesforce Certified Platform Developer 1 Practice Test