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Salesforce Plat-Dev-301 Exam Syllabus Topics:

SectionObjectives
Integration and APIs- External system integration
  • 1. REST and SOAP API usage
    • 2. Callouts from Apex
      - Platform events and messaging
      • 1. Change Data Capture concepts
        • 2. Event-driven architecture
          Application Development- Advanced Apex programming
          • 1. Apex design patterns and best practices
            • 2. Exception handling and debugging strategies
              • 3. Dynamic Apex and metadata-driven development
                - Asynchronous processing
                • 1. Future methods and limits considerations
                  • 2. Batch Apex and Queueable Apex
                    • 3. Scheduled Apex
                      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
                              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

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                                      Salesforce Certified Platform Developer II - Multiple Choice Sample Questions (Q158-Q163):

                                      NEW QUESTION # 158
                                      Refer to the Lightning component below:

                                      The Lightning Component allows users to click a button to save their changes and then redirects them to a different page. Currently when the user hits the Save button, the records are getting saved, but they are not redirected. Which three techniques can a developer use to debug the JavaScript? Choose 3 answers

                                      Answer: A,B,C

                                      Explanation:
                                      When debugging JavaScript in a Lightning Component, developers can utilize the following techniques:
                                      A . Use console.log() messages in the JavaScript: This is a standard debugging technique to log information to the browser console, which can help trace the execution flow or output variable values.
                                      B . Use the browser's dev tools to debug the JavaScript: Modern browsers come equipped with developer tools that can be used to set breakpoints, step through code, and inspect variables at runtime.
                                      C . Enable Debug Mode for Lightning components for the user: Enabling Debug Mode for users provides more detailed error messages and unminified versions of client-side libraries, making it easier to debug issues.
                                      Using the Developer Console to view checkpoints (Option D) and debug logs (Option E) is more relevant for Apex debugging rather than JavaScript.
                                      Salesforce Documentation on Debugging Lightning Components: Debugging


                                      NEW QUESTION # 159
                                      Consider the following code snippet:

                                      The Apex method is executed in an environment with a large data volume count for Accounts, and the query is performing poorly. Which technique should the developer implement to ensure the query performs optimally, while preserving the entire result set?

                                      Answer: A

                                      Explanation:
                                      When dealing with large data volumes in Salesforce and ensuring optimal performance for queries, it's important to choose an approach that both handles the data volume efficiently and retrieves the complete result set.
                                      Option D is correct because using the Database.QueryLocator method is a best practice for handling large data volumes. It is typically used with batch Apex, which can process records in batches, thus reducing the likelihood of hitting governor limits. It's designed to handle very large data sets that would otherwise exceed normal SOQL query limits.
                                      Option A is incorrect because creating a formula field doesn't improve the performance of the query. It simply creates a new field that combines existing data, but it does not inherently optimize the query execution.
                                      Option B is incorrect because breaking down the query into two parts and joining them in Apex could potentially be less efficient and would require additional code to manage the combined result sets. This approach does not leverage the built-in Salesforce features designed to handle large data volumes.
                                      Option C is incorrect because the @Future annotation makes the method execute asynchronously, but it does not help with query performance or large data volume management.
                                      s:
                                      Salesforce Documentation on Working with Very Large SOQL Queries: Working with Very Large SOQL Queries Salesforce Documentation on Using Batch Apex: Using Batch Apex


                                      NEW QUESTION # 160
                                      Given a list of Opportunity records named opportunityList, which code snippet is best for querying all Contacts of the Opportunity's Account?
                                      A)

                                      B)

                                      C)

                                      D)

                                      Answer: C


                                      NEW QUESTION # 161
                                      Universal Containers (LIC) wants to develop a customer community to help their customers log issues with their containers. The community needs to function for their German- and Spanish-speaking customers also. UC heard that it's easy to create an international community using Salesforce, and hired a developer to build out the site.
                                      What should the developer use to ensure the site is multilingual?

                                      Answer: A

                                      Explanation:
                                      Custom labels are used for translating text strings in Salesforce that need to be presented in multiple languages. They support translations and can be referenced in Aura components, Visualforce pages, and Apex code.


                                      NEW QUESTION # 162
                                      A developer is asked to develop a new AppFxchange application. A feature of the program creates Survey records when a Case reaches a certain stage and is of a certain Record Type. This feature needs to be configurable, as different Salesforce instances require Surveys at different times. Additionally, the out-of-the-box AppExchange app needs to come with a set of best practice settings that apply to most customers.
                                      What should the developer use to store and package the custom configuration settings for the app?

                                      Answer: C

                                      Explanation:
                                      Custom metadata is best for storing configurable settings. It's deployable, packageable, and upgradeable. Allows different configurations for different instances.


                                      NEW QUESTION # 163
                                      ......

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