Salesforce Updated CRT-450 Exam Questions and Answers by jaylen

The best way to declare maxAttempts to meet the requirements is to declare it as a private static variable on a helper class. This will ensure that the variable is initialized only once per Apex transaction, and that its value is preserved and shared across trigger executions. A private static variable is a variable that belongs to a class and not an instance, and that can only be accessed within the class. A helper class is a class that contains common methods or variables that can be used by other classes or triggers.

References: The use of private static variables and helper classes can be referenced in the Salesforce Platform Developer I learning documents, specifically in modules that cover Apex basics and triggers, such as:

• Apex Basics & Database
• Apex Triggers
• Apex Testing

A roll-up summary field calculates values from a set of related records, such as those in a related list. You can create a roll-up summary field on the object that is on the master side of a master-detail relationship, such as the Order object, and summarize the values of a field in the detail records, such as the Order Line items. You can choose the SUM roll-up type to get the total of all Order Line item totals on the Order record. This is the best practice because it does not require any code or additional actions to maintain the accuracy of the field value. References: Implement Roll-Up Summary Fields Unit | Salesforce Trailhead, Roll-Up Summary Field - Salesforce, How to create Roll-Up Summary fields in Salesforce

To share a specific Case-Defect_c record with a user, the developer should share the parent Case and Defect_c records. This is because the Case-Defect_c object is a junction object that has two master-detail relationships with the Case and Defect_c objects. A junction object inherits the sharing and security settings from its two master objects, so the user needs to have access to both of them to view the junction object record1. Sharing only one of the parent records is not sufficient, as the user will not be able to see the other related record. Sharing only the junction object record is not possible, as it does not have its own sharing settings.

References:

• 1: Create a Junction Object

Adding system.debug statements to the code is a common and effective way to troubleshoot issues with Apex triggers. System.debug statements allow the developer to log messages, variables, or expressions to the debug log, which can be viewed in the Developer Console or other tools1. By adding system.debug statements at strategic points in the trigger code, the developer can track the execution flow, check the values of variables, and identify the root cause of the issue. Disabling the trigger in production is not a good practice, as it can affect the business logic and data integrity of the org2. Using the Apex Interactive Debugger is a powerful tool that allows the developer to set breakpoints, inspect variables, and execute code line by line, but it requires a paid license and a supported IDE3. Reviewing the Historical Event logs can provide useful information about the performance, security, and usage of the org, but it may not be sufficient to pinpoint the exact issue with the trigger4. References:

• Debug Your Code | Salesforce Trailhead
• Triggers | Apex Developer Guide | Salesforce Developers
• Apex Interactive Debugger | Salesforce Developer Tools
• Event Monitoring | Salesforce Trailhead