What is the macro used for 'last received metric' in Zabbix?

The correct choice is based on the specific syntax and functionality defined in Zabbix for accessing the most recent value of an item. In Zabbix, macros are utilized to retrieve specific types of data from items.

The macro {ITEM.LASTVALUE} is designed explicitly to provide the last value received by the specified item. This macro reflects the most recent data point stored in Zabbix for that item, which is crucial for monitoring, alerting, and reporting purposes. It allows users to dynamically insert the latest metric into various configurations, such as triggers, notifications, or scripts.

This choice is widely utilized in Zabbix configurations, making it a practical option when needing to reference the latest metrics for evaluation or action. Understanding how to use such macros is essential for effectively managing Zabbix and utilizing its capabilities for real-time monitoring.