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Salesforce - PDII - Platform Developer II Latest Official Study Guide

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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.

To be eligible for the Salesforce PDII Certification Exam, candidates must have obtained the Salesforce Certified Platform Developer I certification and have at least two years of experience in developing custom applications on the Salesforce platform. PDII exam consists of 60 multiple-choice questions and five coding challenges that test the candidate's ability to design, develop, and deploy complex applications on the Salesforce platform. PDII exam covers a wide range of topics, including data modeling, Apex programming, Lightning components, and integration with external systems. Upon passing the exam, candidates will receive the Salesforce Certified Platform Developer II certification, which is recognized as a valuable credential by employers and clients worldwide.

Salesforce Platform Developer II Sample Questions (Q89-Q94):

NEW QUESTION # 89
What are three benefits of using declarative customizations over code? (Choose three.)

Answer: B,C,D

Explanation:
Explanation/Reference:


NEW QUESTION # 90
A developer has a test class that creates test data before making a mock callout but now receives a 'You have uncommitted work pending. Please commit or rollback before calling out' error.
Which step should be taken to resolve the error?

Answer: B

Explanation:
When working with Apex tests that involve callouts, it's important to avoid the 'uncommitted work pending' error. This error typically occurs because DML operations (like inserts) are pending when a callout is attempted. Salesforce requires that all callouts are made before any DML operations in a transaction. To avoid this, the pattern is to insert the records before calling Test.startTest(), and then make the callout after this call.
Test.startTest() marks the point where your actual test begins, and it resets the governor limits. By making the callout after this point, it ensures that the DML operations are committed and you are within a new execution context regarding governor limits.
References:
Testing HTTP Callouts by Implementing the HttpCalloutMock Interface
Understanding Execution Contexts


NEW QUESTION # 91
A developer has a test class that creates test data before making a mock callout but now receives a 'You have uncommitted work pending. Please commit or rollback before calling out' error.
Which step should be taken to resolve the error?

Answer: B

Explanation:
To resolve the error, the developer should ensure the records are inserted before the Test.startTest() statement and the mock callout occurs after the Test.startTest() statement. The Test.startTest() and Test.stopTest() methods are used to mark the boundaries of the test code that contains the logic to be tested. The Test.startTest() method also resets the governor limits, such as the number of DML statements, SOQL queries, and callouts, for the test code. The Test.stopTest() method also forces the asynchronous processes, such as batch jobs, future methods, and queueable jobs, to run synchronously. The error 'You have uncommitted work pending. Please commit or rollback before calling out' occurs when a test method tries to make a callout after performing a DML operation in the same transaction, as this may cause data inconsistency or deadlock issues. To avoid this error, the developer should insert the records before the Test.startTest() statement, so that the DML operation is not counted in the same transaction as the callout. The developer should also make the mock callout after the Test.startTest() statement, so that the callout is counted in the test code transaction, and the Test.stopTest() method can force the callout to complete before the assertions. Ensuring both the insertion and mock callout occur after the Test.stopTest() statement would not resolve the error, as the Test.stopTest() statement should be the last statement in the test method, and any code after it would not be executed. Ensuring the records are inserted before the Test.startTest() statement and the mock callout occurs within a method annotated with @testSetup would not resolve the error, as the @testSetup annotation is used to create test data for all test methods in a test class, not to make mock callouts. Ensuring both the insertion and mock callout occur after the Test.startTest() statement would not resolve the error, as the insertion and mock callout would still be in the same transaction, and cause the error. Reference: [Testing HTTP Callouts], [Using Test.startTest and Test.stopTest]


NEW QUESTION # 92
A developer is responsible for formulating the deployment process for a Salesforce project. The project follows a source-driven development approach, and the developer wants to ensure efficient deployment and version control of the metadata changes.
Which tool or mechanism should be utilized for managing the source-driven deployment process?

Answer: B


NEW QUESTION # 93
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 to do address the issue?

Answer: D


NEW QUESTION # 94
......

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