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Salesforce PDII Exam Syllabus Topics:

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

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                                  최신 Salesforce Developers PDII 무료샘플문제 (Q47-Q52):

                                  질문 # 47
                                  What is a benefit of JavaScript remoting over Visualforce Remote Objects?

                                  정답：D

                                  설명：
                                  Visualforce provides two primary ways to perform AJAX-style operations: JavaScript Remoting and Remote Objects. The primary benefit of JavaScript Remoting (Option A) is its ability to execute complex server- side logic.
                                  JavaScript Remoting works by calling an Apex method annotated with @RemoteAction. Because this is a standard Apex method, it can perform advanced calculations, complex SOQL queries with multi-object joins, DML operations across various objects, and even call out to external web services.
                                  In contrast, Remote Objects are purely declarative. They allow you to perform basic CRUD operations (Create, Read, Update, Delete) on a single object directly from JavaScript without writing any Apex. While Remote Objects are easier to set up for simple data entry, they cannot handle "business logic" (like calculating a discount based on customer history) during the data retrieval process.
                                  Option B and C describe Remote Objects, not Remoting. Option D is a feature of standard Visualforce tags like <apex:commandButton>, but not a specific differentiator for Remoting. Therefore, when your application needs "brains" on the server, JavaScript Remoting is the superior choice.


                                  질문 # 48
                                  Java
                                  @isTest
                                  static void testUpdateSuccess() {
                                  Account acet = new Account(Name = 'test');
                                  insert acet;
                                  // Add code here
                                  extension.inputValue = 'test';
                                  PageReference pageRef = extension.update();
                                  System.assertNotEquals(null, pageRef);
                                  }
                                  What should be added to the setup, in the location indicated, for the unit test above to create the controller extension for the test?

                                  정답：D

                                  설명：
                                  123
                                  To properly test a Visualforce Controller Extension in Apex, the developer must replicate the instantiation process used by the Lightning Platform at runtime. A4 controller extension is a class whose constructor is specifically defined to accept a single parameter of the type ApexPages.StandardController. 5The standard controller acts as the bridge b6etween the custom extension logic and the underlying Salesforce record (in this case, an Account).
                                  In the provided test method, a record acet has been inserted into the database. To create the extension object, the developer must first instantiate the StandardController by passing the acet SObject record into its constructor. Once the standard controller instance (e.g., sc) is created, it is then passed into the constructor of the AccountControllerExt class. Option B is the correct implementation of this two-step pattern. Option C is incorrect because the StandardController constructor requires a full SObject record, not just an ID string.
                                  Options A and D are incorrect because extension classes do not support constructors that take an SObject or an ID directly; they specifically require the StandardController object to provide the necessary context for standard actions and fields. Following the correct pattern ensures the test accurately simulates the page execution context.


                                  질문 # 49
                                  A developer implemented a custom data table in a Lightning web component with filter functionality.
                                  However, users are submitting support tickets about long load times when the filters are changed. The component uses an Apex method that is called to query for records based on the selected filters. What should the developer do to improve performance of the component?

                                  정답：A

                                  설명：
                                  When a data table experiences slow performance during filtering, the root cause is often "non-selective" queries that result in full table scans. In Salesforce, a query is selective when it uses an indexed field in the WHERE clause and filters down to a small percentage of the total records (typically 10% of the first million).
                                  Option D is the correct strategy. By ensuring that the filter fields (such as a Status or Category) are either standard indexed fields or custom fields marked as "External ID" or "Unique" (which creates a custom index), the Query Optimizer can quickly locate the relevant rows. This significantly reduces the database processing time and the "Time to First Byte" (TTFB) returned to the Lightning component.
                                  Option C might seem attractive for small datasets, but it is not scalable; if the org has 50,000 records, returning all of them to the client will crash the browser's heap memory. Option B (setStorable) is an Aura- specific concept and is replaced by @AuraEnabled(cacheable=true) in LWC, but even caching doesn't help if the initial query itself is slow. Option A (SOSL) is for text searching across multiple objects and is generally less efficient than a targeted SOQL query for specific field filtering. Using a selective SOQL query ensures the component remains fast as data volume grows.


                                  질문 # 50
                                  Business rules require a Contact ta always be created when a new Account is created.
                                  What can be used when developing a custom screen to ensure an Account is not created if the creation of the Contact fails?

                                  정답：C

                                  설명：
                                  When developing a custom screen that requires both an Account and Contact to be created together, using setSavepoint() and rollback() within a try-catch block is a reliable way to ensure that if the Contact creation fails, the Account creation is also rolled back, maintaining data integrity.References: Apex Developer Guide - Savepoint and Transaction Control


                                  질문 # 51
                                  Universal Containers wants to notify an external system in the event that an unhandled exception occurs when their nightly Apex batch job runs.
                                  What is the appropriate publish/subscribe logic to meet this requirement?

                                  정답：B


                                  질문 # 52
                                  ......

                                  Salesforce인증PDII시험은 현재 치열한 IT경쟁 속에서 열기는 더욱더 뜨겁습니다. 응시자들도 더욱더 많습니다. 하지만 난이도난 전혀 낮아지지 않고 이지도 어려운 시험입니다. 어쨌든 개인적인 지식 장악도 나 정보기술 등을 테스트하는 시험입니다. 보통은Salesforce인증PDII시험을 넘기 위해서는 많은 시간과 신경이 필요합니다.

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