Salesforce Platform Developer Practice Exam

How can a developer instantiate a PageReference in Apex?

1. By using a PageReference with a partial or full URL

2. By using the Page object and a Visualforce page name

3. By using the ApexPages.Page() method with a Visualforce page name

4. By using the PageReference.Page() method with a partial or full URL

The correct answer is: By using a PageReference with a partial or full URL

Instantiating a PageReference in Apex can be done effectively by using a PageReference with a partial or full URL. This method allows developers to specify either the complete path to the desired page or just part of the URL, depending on the application requirements. When a developer uses this approach, they can create a direct link to a specific endpoint or resource, making it particularly useful for redirecting users to a particular page after an operation, such as saving a record or performing some logic in the application. This flexibility in instantiation allows for dynamic navigation within the Salesforce platform, accommodating various scenarios where redirection to different pages is necessary. The other options do not accurately represent the most direct or standard methods for creating a PageReference. For example, while Visualforce page names can be relevant, instantiating the PageReference does not conventionally require the use of the Page object. Instead, recognizing the capability of including a URL provides a more general and widely applicable method. Hence, using a URL, whether full or partial, offers a straightforward and flexible solution in Apex development for creating PageReference instances.