Which of the following is an example of a built-in dashboard in Splunk?

The Splunk Monitoring Console is a built-in dashboard designed to help administrators monitor the health and performance of their Splunk deployment. It provides a comprehensive view of various aspects of the system, such as indexer performance, search performance, and system-wide alerts. This centralized console allows users to quickly assess the operational status and any potential issues, making it a crucial tool for managing a Splunk environment effectively.

Other options like the Data Flow Monitor and Search Activity Dashboard are tools and reports related to specific functionalities but may not necessarily be categorized as standalone dashboards within the platform. Likewise, the Alert Manager serves a distinct purpose related to managing and organizing alerts rather than functioning as a broad monitoring dashboard. Hence, the Splunk Monitoring Console stands out as the primary built-in dashboard that serves the overall monitoring needs within Splunk.