[Reference: https://docs.splunk.com/Documentation/MSExchange/4.0.3/Reference/ServiceAnalyzer, The service analyzer is a dashboard that allows you to monitor the overall service and KPI status in ITSI. The service analyzer displays a list of all services and their health scores, which indicate how well each service is performing based on its KPIs. You can also view the status and values of each KPI within a service, as well as drill down into deep dives or glass tables for further analysis. The service analyzer helps you identify issues affecting your services and prioritize them based on their impact and urgency. The main purpose of the service analyzer is:, D. Monitor overall service and KPI status. This is true because the service analyzer provides a comprehensive view of the health and performance of your services and KPIs in real time., The other options are not the main purpose of the service analyzer because:, A. Display a list of all services and entities. This is not true because the service analyzer does not display entities, which are IT components that require management to deliver an IT service. Entities are displayed in other dashboards, such as entity management or entity health overview., B. Trigger external alerts based on threshold violations. This is not true because the service analyzer does not trigger alerts, which are notifications sent to external systems or users when certain conditions are met. Alerts are triggered by correlation searches or alert actions configured in ITSI., C. Allow analysts to add comments to alerts. This is not true because the service analyzer does not allow analysts to add comments to alerts, which are notifications sent to external systems or users, ]