TheLimitsclass in Apex provides methods to check the consumption of governor limits, such as the number of SOQL queries, DML statements, and heap size used.
Example:
Integer dmlStatements = Limits.getDMLStatements();
Integer dmlLimit = Limits.getLimitDMLStatements();
Not Suitable:
Option A:OrgLimitsis not an Apex class.
Option C:Messagingdeals with email and messaging operations.
Option D:Exceptionis for handling exceptions, not tracking resource usage.
Limits Class
Reference:Apex Developer Guide - Limits Class
This concept falls under"Testing, Debugging, and Deployment"(22% weight) in the PD1 guide, as developers need to monitor and test for governor limits to ensure Apex code scalability and reliability.