CSA Visualforce Pages 3

Question 1

Which component renders an input field appropriate for the data type of a Salesforce field?

Accepted Answer

<apex:inputField>

Answer

<apex:inputField> automatically renders the correct input type based on the field's metadata and data type.

Question 2

What does the 'rendered' attribute do on a Visualforce component?

Accepted Answer

Determines if the component is included in the DOM

Answer

The rendered attribute (boolean) determines whether the component is included in the page DOM — when false, it is not rendered at all.

Question 3

Which Visualforce tag is used to define an area that can be partially refreshed via AJAX?

Accepted Answer

<apex:outputPanel>

Answer

<apex:outputPanel> with layout="block" can be targeted by reRender attributes for partial page AJAX refreshes.

Question 4

What is the purpose of <apex:actionFunction>?

Accepted Answer

Defines a JavaScript function that calls a controller action remotely

Answer

<apex:actionFunction> creates a JavaScript function that can invoke a controller method via AJAX from client-side JavaScript.

Question 5

Which attribute on <apex:commandButton> specifies which panel(s) to refresh after the action completes?

Accepted Answer

reRender

Answer

The reRender attribute specifies the id(s) of components to refresh via AJAX after the button's action executes.

(CSA) Certified Salesforce Administrator Practice Test