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Salesforce PDII Exam Syllabus Topics:

Section	Objectives
Topic 1: Advanced Apex Programming	- Complex Apex logic implementation 1. Advanced exception handling strategies 2. Dynamic Apex and reflection concepts - Advanced Apex design patterns 1. Enterprise patterns (service, domain, selector layers) 2. Separation of concerns in Apex applications
Topic 2: Testing, Debugging, and Deployment	- Test-driven development 1. Test data factory patterns 2. Writing advanced Apex test classes - Deployment and debugging 1. Change sets and CI/CD tools 2. Debug logs and performance tuning
Topic 3: Asynchronous Apex	- Scheduled and future methods 1. Use cases for @future methods 2. Scheduling Apex jobs - Batch Apex and Queueable Apex 1. Batch processing strategies and governor limits 2. Chaining Queueable jobs
Topic 4: Integration and APIs	- External system integration 1. Platform Events and Change Data Capture 2. Named Credentials and authentication - Salesforce integration patterns 1. Callout patterns and limits 2. REST and SOAP API usage

>> PDII考試心得 <<

最近更新的PDII考試心得 |高通過率的考試材料|熱門的PDII：Platform Developer II

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最新的 Salesforce Developers PDII 免費考試真題 (Q53-Q58):

問題 #53
A company exposes a REST web service and wants to establish two-way SSL between Salesforce and the REST web service. A certificate signed by an appropriate certificate authority has been provided to the developer.
What modification is necessary on the Salesforce side? (Choose two.)

A. Update the code to use HttpRequest.setClientCertificateName()
B. Update the code to use HttpRequest.setHeaderQ to set an Authorization header.
C. Configure two-factor authentication with the provided certificate
D. Create an entry for the certificate in Certificate and Key Management

答案：A,D

問題 #54
A company wants to incorporate a third-party weh service to set the Address fields when an Account is inserted, if they have not already been set.
What is the optimal way to achieve this?

A. Create a Process, execute a Quaueable job from it, and make a callout from the Queueable job.
B. Create an Apex trigger, execute a Queueable job from it, and make a callout from the Queueable job.
C. Create a Workflow Rule, execute a Queueable job from it, and make a callout from the Queueable job.
D. Create a Before Save Flow, execute a Queueable job from it, and make a callout from the Queusable job.

答案：B

問題 #55
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?

A. Ensure both the Insertion and mock callout occur after the I==L. stoptest_().
B. Ensure the records are inserted before the Test.startTess() statement and the mock callout occurs after the Test. Startest().
C. Ensure the records are Inserted before the Tezt.startTest() statement and the mock callout occurs within a method annotated with @testSetup.
D. Ensure both the insertion and mock callout occur after the Test.startTest().

答案：B

解題說明：
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]

問題 #56
The Contact object has a custom field called "Zone." Its data type is "Text" and field length is 3. What is the outcome after executing the following code snippet in the org?

A. Both inserts succeed and the contact record that has the Zone value of PITT is truncated
B. An unhandled DML exception is thrown and no contact records are inserted
C. A partial insert succeeds and the contact record that has the Zone value 'IAD1 is inserted
D. Both inserts succeed and the contact record that has the Zone value of 'PI'IT is set to NULL

答案：B

問題 #57
Which statement is considered a best practice for writing bulk safe Apex triggers?

A. Use the Database methods with allorNone set to £21s= instead of DML statements.
B. Add LIMIT 50000 to every SOQL statement.
C. Add records to collections and perform DML operations against these collections.
D. Perform all DML operations from within a future method.

答案：C

問題 #58
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當前 Salesforce 作爲企業資訊解決方案的重要性及緊要性與日俱增，相關的工作機會將會越來越多，對技術能力的要求也越來越被企業作爲面試的一個標準，所以不管在哪個行業，Salesforce 工作者都必須不斷自我學習、接受訓練課程或是參加各式的專業認證來充實自己，使自己在工作上可以更加得心應手。而通過了Salesforce PDII 認證考試，證明你的IT專業知識很強，有很強的能力，可以勝任一份很好的工作。

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