Plat-Dev-301 Prüfung, Plat-Dev-301 Musterprüfungsfragen

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Salesforce Plat-Dev-301 Exam Syllabus Topics:

SectionObjectives
Topic 1: Data Modeling and Management- Data access and security
  • 1. Security enforcement in Apex
    • 2. Sharing rules and Apex-managed sharing
      - Advanced data modeling
      • 1. Complex relationships and schema design
        • 2. Large data volume considerations
          Topic 2: Application Development- Asynchronous processing
          • 1. Batch Apex and Queueable Apex
            • 2. Future methods and limits considerations
              • 3. Scheduled Apex
                - Advanced Apex programming
                • 1. Exception handling and debugging strategies
                  • 2. Apex design patterns and best practices
                    • 3. Dynamic Apex and metadata-driven development
                      Topic 3: Testing and Deployment- Testing strategies
                      • 1. Test data creation and mocking
                        • 2. Code coverage and quality practices
                          - Deployment lifecycle
                          • 1. Version control and CI/CD concepts
                            • 2. Change sets and deployment tools
                              Topic 4: Integration and APIs- Platform events and messaging
                              • 1. Change Data Capture concepts
                                • 2. Event-driven architecture
                                  - External system integration
                                  • 1. Callouts from Apex
                                    • 2. REST and SOAP API usage

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                                      Salesforce Certified Platform Developer II - Multiple Choice Plat-Dev-301 Prüfungsfragen mit Lösungen (Q195-Q200):

                                      195. Frage
                                      A company uses an external system to manage its custom account territory assignments. Every quarter, millions of Accounts may be updated in Salesforce with new Owners when the territory assignments are completed in the external system.
                                      What is the optimal way to update the Accounts from the external system?

                                      Antwort: A


                                      196. Frage
                                      Universal Containers wants to use a Customer Community with Customer Community Plus licenses to allow their customers access to track how many containers they have rented and when they are due back. Universal Containers uses a Private sharing model for External users, Many of their customers are multi-national corporations with complex Account hierarchies. Each account on the hierarchy represents a department within the same business, One of the requirements is to allow certain community users within the same Account hierarchy to see several departments' containers, based on a custom junction object that relates the Contact to the various Account records that represent the departments.
                                      Which solution solves these requirements?

                                      Antwort: C

                                      Begründung:
                                      For community users within the same Account hierarchy to see records based on a custom junction object, Apex managed sharing can be used. An Apex trigger can create sharing records based on the junction object relationships, allowing users to see records from different departments as required.


                                      197. Frage
                                      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?

                                      Antwort: C

                                      Begründung:
                                      To notify an external system about an unhandled exception in a batch job, the appropriate approach is to have the external system subscribe to a custom Platform Event that gets published using EventBus.publish(). When an exception occurs, the batch job can publish this event which the external system can listen for and respond to accordingly. Reference:
                                      Platform Events Developer Guide


                                      198. Frage
                                      Which use case can be performed only by using asynchronous Apex?

                                      Antwort: C

                                      Begründung:
                                      Making a callout from an Apex trigger is not allowed synchronously; hence, such callouts must be performed in an asynchronous context. The only way to perform this within the Salesforce platform is by using asynchronous Apex, such as @future methods or Queueable Apex.


                                      199. Frage
                                      Which code snippet processes records in the most memory efficient manner, avoiding governor limits such as "Apex heap size too large"?
                                      A)

                                      B) C)

                                      D)

                                      Antwort: A

                                      Begründung:
                                      Option D, which uses the Database.query() method in combination with a for loop, is the most memory-efficient way to process records. This is known as the Query Locator pattern, which allows you to work with a large number of records by querying them in batches. This approach helps to avoid hitting the governor limit for "Apex heap size too large" as it processes one record at a time from the database without storing the entire result set in memory.
                                      Working with Very Large SOQL Queries
                                      Apex Governor Limits


                                      200. Frage
                                      ......

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