What is a common pitfall to avoid when using partial page refresh in Visualforce?

Using actionFunction to call a controller method.

Rerendering components that are not affected by the action.

Including actionRegion in every AJAX request.

Using rerender with a single component ID.

A Visualforce page has a form with two sections: 'Personal Info' and 'Address'. A user clicks a button in the 'Address' section to validate the address fields. The developer wants to refresh only a message panel in the 'Address' section, and the 'Personal Info' fields should not be processed. What should the developer do?

Wrap the 'Address' section and the button in an actionRegion, and set the button's rerender attribute to the message panel.

Use actionSupport on the button with a rerender attribute to the message panel.

Wrap the entire form in an actionRegion, and set the button's rerender attribute to the message panel.

Set the button's rerender attribute to the message panel without using an actionRegion.

What is a key characteristic of JavaScript remoting in Visualforce?

It can only be used with Lightning components, not Visualforce.

It automatically updates the view state after each call.

It requires a full page postback to execute Apex methods.

It allows asynchronous calls to Apex methods from JavaScript.

SalesforceCertified Platform Developer II

Domain 4Objective 3

Describe the Techniques for Using Visualforce to Perform Actions and Partial Page Refresh. PLATFORM-DEVELOPER-II Practice Questions (Page 1)

Part of the USER INTERFACE domain, which accounts for 20% of the PLATFORM-DEVELOPER-II exam.

22questions here

5free pages

7concepts

20%of the exam

Questions 1–5

1foundation · easy
What is a common pitfall to avoid when using partial page refresh in Visualforce?
Select an answer first
2application · medium
A Visualforce page has a form with two sections: 'Personal Info' and 'Address'. A user clicks a button in the 'Address' section to validate the address fields. The developer wants to refresh only a message panel in the 'Address' section, and the 'Personal Info' fields should not be processed. What should the developer do?
Select an answer first
3foundation · easy
What is a key characteristic of JavaScript remoting in Visualforce?
Select an answer first
4foundation · easy
Which technology allows a Visualforce page to call an Apex method asynchronously from JavaScript without a full page postback?
Select an answer first
5application · easy
A Visualforce page contains a table of Opportunities and a separate panel that shows the total amount. A user clicks a command button to recalculate the total. The developer wants to update only the total panel, not the entire table. Which attribute should be used on the command button?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to PLATFORM-DEVELOPER-II

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by Salesforce. “PLATFORM-DEVELOPER-II” is a trademark of its owner, used for identification only.

Describe the Techniques for Using Visualforce to Perform Actions and Partial Page Refresh. PLATFORM-DEVELOPER-II Practice Questions (Page 1)

Questions 1–5

What is a common pitfall to avoid when using partial page refresh in Visualforce?

What is a key characteristic of JavaScript remoting in Visualforce?

Which technology allows a Visualforce page to call an Apex method asynchronously from JavaScript without a full page postback?

A Visualforce page contains a table of Opportunities and a separate panel that shows the total amount. A user clicks a command button to recalculate the total. The developer wants to update only the total panel, not the entire table. Which attribute should be used on the command button?

Keep studying — USER INTERFACE