PD1 Visualforce Pages 3

Question 1

Which Visualforce global variable provides access to custom labels?

Accepted Answer

$Label

Answer

The $Label global variable allows you to reference custom labels in Visualforce expressions, e.g., {!$Label.My_Label}.

Question 2

How does <apex:actionPoller> work in a Visualforce page?

Accepted Answer

It periodically calls a controller action at a specified interval to refresh page data

Answer

<apex:actionPoller> invokes a controller action repeatedly at a defined interval (minimum 5 seconds) to enable auto-refreshing data.

Question 3

Which attribute on <apex:outputField> ensures the field is rendered using its associated field metadata including label?

Accepted Answer

You must wrap it in <apex:pageBlockSectionItem>

Answer

Wrapping inside renders the field with its metadata-driven label on the left side.

Question 4

What is the maximum number of SOQL queries allowed in a Visualforce page request (non-readOnly)?

Accepted Answer

100

Answer

Standard Visualforce page requests follow the same governor limits as Apex: 100 SOQL queries per transaction.

Question 5

Which component should you use to render a Visualforce page inside another Visualforce page?

Accepted Answer

<apex:include>

Answer

<apex:include> embeds another Visualforce page's content inline within the current page, sharing the same view state.

(PD1) Salesforce Certified Platform Developer 1 Practice Test