Home » Oracle » 1z0-134 » Which WLDF component do you use to accomplish this?
You want to use the WebLogic Diagnostic Framework (WLDF) to monitor some historic MBean attribute values in your WebLogic domain.
Which WLDF component do you use to accomplish this? (Choose the best answer.)
A. the Harvester with a metric collection definition
B. a Watch on a metric collection definition
C. the MBean Collector with a metric collection definition
D. the Archiver with a metric collection definition
Correct Answer: D
Explanation/Reference:
The Archive component of the WebLogic Diagnostics Framework (WLDF) captures and persists all data events, log records, and metrics collected by WLDF from server instances and applications running on them.
The Archive provides access interfaces so that the Accessor may expose any of the persisted historical data including logged event data and persisted metrics.
Incorrect Answers:
A: The Harvester component of the WebLogic Diagnostics Framework (WLDF) gathers metrics from attributes on qualified MBeans that are instantiated in a running server. The Harvester can collect metrics from WebLogic Server MBeans and from custom MBeans.
B: The Watch and Notification component of the WebLogic Diagnostics Framework (WLDF) provides the means for monitoring server and application states and then sending notifications based on criteria set in the watches.
Reference: https://docs.oracle.com/cd/E24329_01/web.1211/e24426/architecture.htm#WLDFC124
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