What are the four types of macros in Zabbix and how are they formatted?

The correct answer identifies the four types of macros in Zabbix as built in, user defined, low level discovery, and expression.

Built-in macros are predefined by Zabbix and provide standard values that are automatically populated during monitoring tasks. They are particularly useful because they save time and ensure accuracy in referencing common parameters, such as host names or item values.

User defined macros are those that you can create to suit specific needs of your environment. These macros allow greater flexibility, as they can be used to define values that cluster-specific metrics or configurations may utilize, making it easier to manage complex environments.

Low level discovery (LLD) macros are specifically used in the context of low-level discovery rules. They facilitate automatic monitoring of dynamic items, such as creating multiple items for network interfaces or file systems without having to define each one manually.

Expression macros are utilized within Zabbix's expression language, allowing users to write expressions that can evaluate conditions based on collected data. This enables the setup of triggers and actions that depend on real-time data conditions.

The other options include terms like "custom" and "special," which do not align with the standardized terminology used by Zabbix to categorize macro types, leading to the identification of the correct set in