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Salesforce Plat-Dev-301 Exam Syllabus Topics:

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

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                                      Salesforce Certified Platform Developer II - Multiple Choice Sample Questions (Q190-Q195):

                                      NEW QUESTION # 190
                                      A developer is asked to modify a Lightning web component so that it displays in one column on phones and in two columns on tablets, desktops, and larger devices.
                                      Given to the code below:

                                      Which should the developer add to the code to meet the requirements? A)

                                      B)

                                      C)

                                      D)

                                      Answer: D

                                      Explanation:
                                      The requirement is for the Lightning web component to display in one column on phones and in two columns on larger devices. To achieve this, we should specify the size attributes for different devices using the design tokens provided by the Lightning Design System.
                                      Option B is correct because size="6" will set each lightning-layout-item to take up half the available space (since the grid system is based on a 12-column structure), creating two columns on tablets, desktops, and larger devices. small-device-size="12" will ensure that on small devices like phones, each item will take up the full width, resulting in a single column.
                                      Options A, C, and D do not meet the requirement correctly, as they either do not set the size correctly for small devices or do not specify the sizes for both small and larger devices appropriately.
                                      Lightning Design System Grid Documentation: Lightning Grid


                                      NEW QUESTION # 191
                                      Part of a custom Lightning component displays the total number of Opportunities in the org, which are in the millions. The Lightning component uses an Apex method to get the data it needs.
                                      What is the optimal way for a developer to get the total number of Opportunities for the Lightning component?

                                      Answer: B


                                      NEW QUESTION # 192
                                      A developer is asked to replace the standard Case creation screen with a custom screen that takes users through a wizard before creating the Case. The org only has users running Lightning Experience.
                                      What should the developer override the Case New Action with to satisfy the requirements?

                                      Answer: C

                                      Explanation:
                                      Overriding the standard Case New Action with a Lightning Flow allows the developer to create a custom wizard-style interface for creating cases. Lightning Flows can be embedded in Lightning Experience and provide a guided visual experience.
                                      Lightning Flow


                                      NEW QUESTION # 193
                                      The Account object has a field, Audit_Code_c, that is used to specify what type of auditing the Account needs and a Lookup to User, zudizar_c, that is the assigned auditor. When an Account is initially created, the user specifies the Audit_Code c. Each User in the org has a unique text field, Audit_Code _e, that is used to automatically assign the correct user to the Account's Auditor_c field.

                                      What should be changed to most optimize the code's efficiency? Choose 2 answers

                                      Answer: B,C

                                      Explanation:
                                      To optimize the code's efficiency when assigning users to the Account's Auditor field based on the audit code, the following changes should be considered:
                                      B . Building a map of audit code to accounts (Map<string, List<Account>>) would allow for efficient grouping of accounts by their audit code. This would make it easier to process accounts with the same audit code in a single operation, reducing the number of SOQL queries and DML operations needed.
                                      D . Adding a WHERE clause to the SOQL query to filter on audit codes would limit the number of records returned by the query. This means the code only processes relevant User records with matching audit codes, thereby reducing the processing time and memory consumption.
                                      Option A is not recommended because querying for all distinct audit codes without any context of the accounts being processed could be inefficient. Option C is less effective because it would involve creating a mapping of Account Ids to audit codes, which doesn't aid in the efficient assignment of auditor to accounts.
                                      Salesforce Developer Guide on Maps: Apex Maps
                                      Salesforce Developer Guide on SOQL Queries: SOQL SELECT Syntax


                                      NEW QUESTION # 194
                                      A corporation has many different Salesforce orgs, with some different objects and some common objects, and wants to build a single Java application that can create, retrieve, and update common object records in all of the different orgs.
                                      Which method of integration should the application use?

                                      Answer: B

                                      Explanation:
                                      The SOAP API with the Partner WSDL is ideal for building integrations that work across multiple Salesforce orgs, especially when they have varying schemas. The Partner WSDL is designed to be flexible and dynamic, catering to different metadata.


                                      NEW QUESTION # 195
                                      ......

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