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| Section | Weight | Objectives |
|---|---|---|
| Data Modeling | 12% | - Advanced object relationships and data modeling - External objects and data sources - Large data volumes considerations |
| User Interface | 18% | - Aura Components - Visualforce advanced controllers - Lightning Data Service - Lightning Web Components (LWC) advanced features |
| Testing, Debugging, and Deployment | 15% | - Apex unit testing best practices - Test data strategies and mocking - Debugging and performance profiling - Deployment tools (SFDX, Metadata API) |
| Architecture | 18% | - Apex Enterprise Patterns - Governor limits and bulkification - Namespace and package management - Design patterns and Apex trigger frameworks |
| Logic and Process Automation | 22% | - Invocable Actions and Platform Events - Dynamic Apex and SOQL/SOSL - Asynchronous Apex (Batch, Queueable, Future, Scheduled) - Advanced Apex programming |
| Integration | 15% | - Named Credentials and authentication - REST and SOAP web services (Apex callouts) - External Services and Connect REST API - Platform Events and Change Data Capture |
>> Plat-Dev-301 Valid Exam Objectives <<
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NEW QUESTION # 29
Instead of waiting to send emails to support personnel directly from the finish method of a batch Apex process, Universal Containers wants to notify an external system in the event that an unhandled exception occurs.
What is the appropriate publish/subscribe logic to meet this requirement?
Answer: C
Explanation:
Use BatchApexErrorEvent for notifications. It's automatically triggered for unhandled exceptions in batch Apex. No need for manual publishing. External systems can subscribe to this event to receive notifications.
NEW QUESTION # 30
A developer used custom settings to store some configuration data that changes occasionally. However, tests are now Failing in some of the sandboxes that were recently refreshed.
What should be done to eliminate this issue going forward?
Answer: C
Explanation:
Replacing custom settings with custom metadata types is a good solution to ensure that test data is consistent across environments. Custom metadata types are deployable, and their records are available in test methods by default, unlike List Custom Settings which need to be manually recreated in each environment after a refresh.
NEW QUESTION # 31
Refer to the test method below:
The test method tests an Apex trigger that the developer knows will make a lot of queries when a lot of Accounts are simultaneously updated to be customers. The test method fails at the Line 20 because of too many SOQL queries. What is the correct way to fix this? A)
B)
C)
D)
Answer: C
Explanation:
The correct way to fix this is to add Test.startTest() before and add Test.stopTest() after Line 18 of the code. This will reset the governor limits for the code that executes between these two methods, and allow the test to run without hitting the SOQL query limit.The Test.startTest() and Test.stopTest() methods are used to test code that makes a lot of queries or calls asynchronous methods12. By using these methods, the developer can isolate the code that needs more resources and verify that it does not exceed the governor limits.
:
Using Limits, startTest, and stopTest | Apex Developer Guide | Salesforce Developers Test.StartTest & Test.StopTest - Salesforce Developer Community Why would a developer use test startTest and test stopTest in Salesforce? | ForceTalks
NEW QUESTION # 32
Universal Containers implements a private sharing model for the Convention Attendee co custom object. As part of a new quality assurance effort, the company created an Event_Reviewer_c user lookup field on the object.
Management wants the event reviewer to automatically gain ReadWrite access to every record they are assigned to.
What is the best approach to ensure the assigned reviewer obtains Read/Write access to the record?
Answer: D
Explanation:
Use Apex Managed Sharing with an after insert trigger. It allows dynamic record sharing based on user-defined criteria like the Event_Reviewer_c field.
NEW QUESTION # 33
A developer is debugging an Apex-based order creation process that has a requirement to have three savepoints, SP1, SP2, and 5P3 {created in order), before the final execution of the process.
During the final execution process, the developer has a routine to roll back to SP1 for a given condition. Once the condition is fixed, the code then calls 2 roll back to SP3 to continue with final execution. However, when the roll back to SP3 is called, a Funtime error occurs.
Why does the developer receive a runtime error?
Answer: D
Explanation:
Savepoints in Apex are markers within a transaction and rolling back to an earlier savepoint (SP1) invalidates any savepoints created after it. Thus, SP3 is invalidated when the code rolls back to SP1, causing a runtime error when a rollback to SP3 is attempted.
NEW QUESTION # 34
......
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