Free Salesforce Platform Developer II Exam Dumps

The optimal technique for the developer to troubleshoot this issue is to add system.debug() statements to the code and use the Developer Console logs to trace the code. system.debug() is a method that prints a message to the debug log, which is a tool that captures information about the execution of the code. The Developer Console is an integrated development environment that allows the developer to access and analyze the debug logs. By adding system.debug() statements to the code, the developer can print the values of variables, the execution flow, and the errors and exceptions that occur during the trigger execution. By using the Developer Console logs, the developer can view and filter the debug messages and identify the cause of the issue. This way, the developer can troubleshoot the issue effectively and efficiently .Reference: [system.debug Method], [Debug Logs], [Developer Console]

The technique that the developer should implement to ensure the query performs optimally, while preserving the entire result set, is to break down the query into two individual queries and join the two result sets. This is because the query in the code snippet is using a complex filter condition that combines the CreatedDate and RecordType fields, which are not indexed by default. This means that the query will perform a full table scan on the Account object, which can be very slow and inefficient when the data volume is large. To avoid this, the developer can split the query into two queries, one that filters by the CreatedDate field and another that filters by the RecordType field. Then, the developer can use a Set or a Map to store the Ids of the Accounts that match both criteria, and use the Set or the Map to retrieve the Account records from the database. This way, the query will use the standard indexes on the Id, CreatedDate, and RecordType fields, and perform faster and more efficiently.

To make the component perform faster, the developer should change the default for showContactInfo to false. The showContactInfo attribute is used to control whether the contactInfo component is rendered or not. By default, it is set to true, which means that the contactInfo component is always rendered, even if the user does not need to see it. This can slow down the component loading, as the contactInfo component may have some complex logic or data fetching in its controller or helper. By changing the default for showContactInfo to false, the developer can improve the component performance, as the contactInfo component will only be rendered when the user clicks on the Show Contact Info button, which triggers the toggleContactInfo function and sets the showContactInfo attribute to true. Changing the type of contactInfo to ''Map'' would not make the component perform faster, as contactInfo is not a variable, but a component name. A Map is a collection type that stores key-value pairs, and it is not related to the component rendering. Moving the contents of <c:contactInfo> into the component would not make the component perform faster, as it would not change the logic or data fetching of the contactInfo component. It would only make the component code less modular and reusable. Adding a change event handler for showContactInfo would not make the component perform faster, as it would not change the rendering of the contactInfo component. It would only add an extra function that is executed whenever the showContactInfo attribute changes, which may not be necessary for the component functionality.Reference: [Create and Use Attributes], [Render Components Conditionally]