Which items can be used as filtering conditions for historical alarm queries?

Using alarm name as a filtering condition for historical alarm queries is a common practice because it allows users to narrow down their query to specific types of alarms that align with their desired investigation or analysis. By focusing on the alarm name, users can effectively isolate relevant data that pertains to particular issues or events, making it easier to understand their historical context and respond appropriately.

Filtering by alarm name helps ensure that the resulting data set consists only of alarms that are pertinent to the area of interest, streamlining the process of troubleshooting and performance monitoring. Alarms often have descriptive names that identify the type of incident or fault, which is crucial for quickly finding and addressing problems within the ICT infrastructure.

In the context of the other options, while alarm severity, first occurrence time, and alarm source are also important filtering conditions that can be used to refine queries, focusing strictly on the alarm name allows for targeted searches based on the precise nature of the alarms. This specificity makes it a powerful tool for historical data analysis.