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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Apex Programming | 18% | - Implement best practices for trigger logic - Write and execute Apex triggers - Use asynchronous Apex (future methods, queueable, batch) - Handle exceptions and implement error handling - Design and implement integration patterns |
| Topic 2: Performance | 12% | - Identify and resolve performance bottlenecks - Implement bulkify patterns - Use caching mechanisms (Platform Cache, View State) - Optimize Apex and SOQL queries |
| Topic 3: Testing and Debugging | 14% | - Implement mock implementations for testing - Use Developer Console and debugging tools - Analyze debug logs and resolve issues - Write Apex test classes with proper coverage |
| Topic 4: Data Modeling and Management | 14% | - Use schema builder and relationship queries - Implement custom metadata and custom settings - Handle large data volumes with indexing and partitioning - Design complex data models with relationships |
| Topic 5: Salesforce Platform Fundamentals | 14% | - Understand Salesforce architecture and Governor Limits - Implement sharing and access control - Understand the order of execution - Use Process Builder and Flow appropriately |
| Topic 6: Integration | 14% | - Implement outbound messaging and callouts - Handle integration errors and retry logic - Use Named Credentials and External Data Sources - Implement OAuth 2.0 authentication flows - Use REST API and SOAP API in Apex |
| Topic 7: Lightning Component Framework | 14% | - Use component events and application events appropriately - Use Lightning Data Service to perform CRUD operations - Use @track decorator and reactive properties correctly - Implement inheritance using base components - Debug Lightning component issues using browser developer tools |
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NEW QUESTION # 41
Salesforce users consistently receive a "Maximum trigger depth exceeded" error when saving an Account.
How can a developer fix this error?
Answer: B
Explanation:
1
The "Maximum trigger depth exceeded" error occurs when a recursive loop is created, causing triggers to fire repeatedly until the platform's limit of 16 recursive cal2ls is reached. This often happens when an after update trigger performs a DML operation on the same record that initiated the trigger, or when two different objects have triggers that update each other in a circular fashion.
To resolve this, developers use a static Boolean variable within a helper class to manage the execution state.
Because static variables in Apex persist for the duration of a single transaction, the trigger can check the value of this Boolean before executing its logic. When the trigger runs for the first time, it checks if the Boolean is FALSE, sets it to TRUE, and then proceeds. If the trigger is re-invoked within the same transaction (recursion), the Boolean check will fail, and the logic will be skipped. This "recursion guard" ensures the logic only runs once per transaction.
Splitting the logic into two triggers (A) would not help, as both triggers would still be part of the same recursive cycle. There is no isMultiThread annotation (B), and while @future (C) can break the immediate execution chain, it does not address the underlying logic flaw and can lead to unmanageable asynchronous overhead. The static variable approach is the industry-standard "best practice" for recursion control.
NEW QUESTION # 42
Users report that a button on a custom Lightning Web Component is not working. However, there are no other details provided. What should the developer use to ensure error messages are properly displayed?
Answer: B
NEW QUESTION # 43
Universal Containers develops a Visualforce page that requires the inclusion of external JavaScript and C55 files. They want to ensure efficient loading and caching of the page.
Which feature should be utilized to achieve this goal?
Answer: A
Explanation:
Static resources are files that can be uploaded to Salesforce and referenced by Visualforce pages, Lightning components, or other web applications. Static resources can include external JavaScript and CSS files, images, fonts, zip files, and more. By using static resources, the developer can ensure efficient loading and caching of the page, as the files are stored on the Salesforce server and can be retrieved by a single request. Static resources can also be packaged and distributed as part of an AppExchange app. Reference: [Static Resources], [Using Static Resources]
NEW QUESTION # 44
A developer is inserting, updating, and deleting multiple lists of records in a single transaction and wants to ensure that any error prevents all execution.
How should the developer implement error exception handling in their code to handle this?
Answer: D
Explanation:
The best way to implement error exception handling in their code to handle this requirement is to use Database.setSavepoint() and Database.rollback() with a try-catch statement. Database.setSavepoint() is a method that creates a savepoint, which is a point in the request that specifies the state of the database at that time. Database.rollback() is a method that rolls back the database to the state that was saved at a specified savepoint. A try-catch statement is a way to handle exceptions, which are errors that occur during the execution of the code. By using Database.setSavepoint() and Database.rollback() with a try-catch statement, the developer can create a savepoint before inserting, updating, or deleting the lists of records, and then roll back to the savepoint if any error occurs. This way, the developer can ensure that any error prevents all execution and preserves the database integrity . Reference: [Savepoints and Transactions], [Database.setSavepoint Method], [Database.rollback Method], [Exception Handling]
NEW QUESTION # 45
As part of a custom development, a developer creates a Lightning component to show how a particular opportunity progresses over time.
The component must display the date stamp when any of the following fields change:
* Amount, Probability, Stage, or Close Date
How should the developer access the data that must be displayed?
Answer: B
NEW QUESTION # 46
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