Salesforce Platform Developer Practice Exam

A Force.com developer needs to execute an Apex code snippet to check resource usage. What feature should be used?

1. Debug Log

2. System Log

3. Setup Audit Trail

4. Field Level Security

The correct answer is: System Log

The appropriate feature to use for checking resource usage when executing an Apex code snippet is the Debug Log. The Debug Log is a powerful tool that allows developers to monitor the execution of their Apex code in real-time, capturing detailed information about resource usage such as CPU time, memory allocations, and other governor limits. When an Apex code snippet runs, the Debug Log records various events, including the start and end of transactions, method calls, SOQL queries issued, and the total number of records processed. By enabling debug logging for a specific user and adjusting the logging level, developers can gather in-depth diagnostics to assess how their code is performing and whether it’s within the Salesforce governor limits. This makes the Debug Log essential for analyzing resource consumption and troubleshooting performance issues during the development phase, ensuring that applications run efficiently and adhere to Salesforce's resource allocation policies. Other options like System Log provide lower-level logging that is not specifically tailored for debugging Apex execution contexts or resource consumption. The Setup Audit Trail serves a different purpose related to tracking changes made in the Salesforce setup. Field Level Security pertains to access controls over object fields and doesn't provide insight into code execution or resource usage.