Valid Plat-Dev-301 Exam Review - Plat-Dev-301 Test Lab Questions

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Salesforce Plat-Dev-301 Exam Syllabus Topics:

SectionObjectives
Data Modeling and Management- Data access and security
  • 1. Sharing rules and Apex-managed sharing
    • 2. Security enforcement in Apex
      - Advanced data modeling
      • 1. Complex relationships and schema design
        • 2. Large data volume considerations
          Integration and APIs- Platform events and messaging
          • 1. Change Data Capture concepts
            • 2. Event-driven architecture
              - External system integration
              • 1. REST and SOAP API usage
                • 2. Callouts from Apex
                  Application Development- Advanced Apex programming
                  • 1. Apex design patterns and best practices
                    • 2. Dynamic Apex and metadata-driven development
                      • 3. Exception handling and debugging strategies
                        - Asynchronous processing
                        • 1. Future methods and limits considerations
                          • 2. Batch Apex and Queueable Apex
                            • 3. Scheduled Apex
                              Testing and Deployment- Deployment lifecycle
                              • 1. Version control and CI/CD concepts
                                • 2. Change sets and deployment tools
                                  - Testing strategies
                                  • 1. Code coverage and quality practices
                                    • 2. Test data creation and mocking

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                                      Salesforce Certified Platform Developer II - Multiple Choice Sample Questions (Q200-Q205):

                                      NEW QUESTION # 200
                                      A developer is tasked with creating a Lightning web component that is responsive on various devices, Which two components should help accomplish this goal?
                                      Choose 2 answers

                                      Answer: A,B

                                      Explanation:
                                      Lightning-layout and lightning-layout-item are components used in Lightning Web Components to create responsive grid layouts that adapt to the screen size of various devices.
                                      Lightning Layout: Component Reference
                                      Lightning Layout Item: Component Reference


                                      NEW QUESTION # 201
                                      After a platform event is defined in a Salesforce org,events can be published via which mechanism?

                                      Answer: B

                                      Explanation:
                                      Platform events in Salesforce can be published using a variety of mechanisms, including from external applications through the Salesforce APIs.
                                      Option A is correct because external applications can use Salesforce APIs such as the REST API or the SOAP API to publish events to a platform event in Salesforce.
                                      Options B, C, and D describe mechanisms that are not used for publishing platform events. Entitlement processes are for setting up and tracking service contracts, the standard Streaming API is for subscribing to events not publishing them, and outbound messages are a workflow action used to send information to external services, not for publishing platform events.
                                      Salesforce Developer Documentation - Platform Events


                                      NEW QUESTION # 202
                                      Refer to the test method below''

                                      The test method calls a web service that updates an external system with Account information and sets the Accounts integration_Updated__c checkbox to True when it completes. The test fails to execute and exits with an error: "Methods defined as TestMethod do not support Web service callouts." A) B)

                                      C)

                                      D)

                                      Answer: C

                                      Explanation:
                                      The correct order in tests with callouts is Test.startTest(), then Test.setMock(), followed by the method invocation, and finally Test.stopTest(). This ensures the mock callout is used.


                                      NEW QUESTION # 203
                                      Which three actions must be completed in a Lightning web component for a JavaScript file In a static resource to be loaded? Choose 3 answers

                                      Answer: C,D,E


                                      NEW QUESTION # 204
                                      There is an Apex controller and a Visualforce page in an org that displays records with a custom filter consisting of a combination of picklist values selected by the user.
                                      The page takes too long to display results for some of the input combinations, while for other input choices it throws the exception, "Maximum view state size limit exceeded".
                                      What step should the developer take to resolve this issue?

                                      Answer: A

                                      Explanation:
                                      To resolve the issue of the Visualforce page taking too long to display results or exceeding the view state limit, the developer should use a StandardSetController or implement SOQL LIMIT in the Apex controller. This limits the number of records that are processed and displayed at one time, which can prevent view state errors and improve performance.


                                      NEW QUESTION # 205
                                      ......

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