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To earn the Salesforce PDII certification, candidates need to pass a rigorous exam that consists of 60 multiple-choice questions and five programming assignments. PDII exam covers a wide range of topics, including Apex programming language, Visualforce framework, Lightning Component framework, data modeling, integration, security, and performance tuning. The programming assignments require the candidates to build a custom application using Apex, Visualforce, or Lightning Components and demonstrate their ability to solve complex business problems using the Salesforce platform. The Salesforce PDII Certification is a valuable asset for developers who want to enhance their career opportunities and demonstrate their expertise in building custom applications on the Salesforce platform.
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Salesforce PDII exam is challenging and requires significant preparation to pass. Candidates must have a deep understanding of advanced Apex programming, data modeling, and integration concepts, and must be able to apply this knowledge to real-world scenarios. PDII Exam is designed to test not only knowledge, but also practical experience, and candidates are required to demonstrate their ability to design and develop complex applications on the Salesforce platform.
NEW QUESTION # 106
The use of the transient keyword in Visualforce page controllers helps with which common performance issue?
Answer: D
Explanation:
The transient keyword in Visualforce page controllers marks variables that should not be part of the view state, which can significantly reduce the size of the view state. This can help avoid view state limit errors and improve page performance because a smaller view state requires less time to send to the client.References:
Visualforce Developer Guide - Reducing View State Size
NEW QUESTION # 107
A developer wants to call an Apex Server-side Controller from a Lightning Aura Component. What are two limitations to the data being returned by the Controller? Choose 2 answers
Answer: C,D
NEW QUESTION # 108
1 Contact con = new Contact( LastName ='Smith', Department = 'Admin')
2 insert con;
3 Contact insertedContact=[select Name from Contact where id=:con.Id];
4 Savepoint sp_admin = Database.setSavepoint();
5 con.Department = 'HR';
6 update con;
7 Database.rollback(sp_admin);
8 System.debug(Limits.getDmlStatements());
Given the following code, what value will be output in the logs by line #8?
Answer: A
NEW QUESTION # 109
Which tag should a developer use to display different text while an <apex:commandButton> is processing an action?
Answer: B
Explanation:
In Visualforce, the <apex:actionStatus> component is specifically designed to provide user feedback during asynchronous (AJAX) operations. When an <apex:commandButton> or <apex:actionSupport> initiates a request to the server, there is a delay while the server processes the logic and returns the updated data. To prevent users from clicking the button multiple times or to simply inform them that the system is working, developers use <apex:actionStatus>.
This tag allows you to define two facets: startText (or a start facet) and stopText (or a stop facet). By linking the status attribute of the <apex:commandButton> to the id of the <apex:actionStatus>, the page will automatically toggle between these states. For example, while the button is processing, the status can display
"Processing..." or a loading spinner, and once the action is complete, it can return to being hidden or display a
"Completed" message.
Option B is used for timed, repeated requests. Option C is for displaying validation or system errors. Option D is used to add AJAX support to other components (like a picklist) but doesn't manage the display state of the request itself. Therefore, <apex:actionStatus> is the standard tool for managing UI state during the request- response lifecycle in Visualforce.
NEW QUESTION # 110
A company notices that their unit tests in a test class with many methods to create many records for prerequisite reference data are slow. What can a developer do to address the issue?
Answer: C
Explanation:
The most effective way to optimize test performance when multiple test methods require the same set of records is to use the @testSetup annotation (Option C).
When a method is marked with @testSetup, Salesforce executes it exactly once before any test methods in the class run. The platform then creates a "database snapshot" of those records. For every individual test method in the class, Salesforce simply rolls back the database to that snapshot rather than re-executing the DML operations required to create the records. This dramatically reduces the total number of DML statements and CPU time consumed during the test run.
In contrast, calling a TestDataFactory (Option D) from within every test method results in the same records being inserted and deleted repeatedly for every test case. If a class has 50 test methods, the records are created
50 times. With @testSetup, they are created once. Option A is not possible (you cannot programmatically disable these during a test run), and Option B is incorrect as test classes do not use constructors in this manner. Using @testSetup is the platform-recommended pattern for efficient, high-performance unit testing.
NEW QUESTION # 111
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