Home » Oracle » 1z0-457 » Which Oracle Enterprise manager Ops Center capability is used by the High Availability capability for proxy controllers?
Which Oracle Enterprise manager Ops Center capability is used by the High Availability capability for proxy controllers?
A. Generating alerts and incidents if assets are no longer reachable
B. Moving assets from one proxy controller to another
C. Switching between agent and Agentless management access
D. Upgrading agent controllers to the most recent version
E. Patching the asset to the most recent version
Correct Answer: B
Explanation/Reference:
For the Enterprise Manager Ops Center environment, high availability applies only to the Enterprise Controller and its co-located Proxy Controller. To avoid a single point of failure in the Enterprise Manager Ops Center software, transfer the /var/opt/sun/xvm directory structure manually from the primary Enterprise Controller to a secondary Enterprise Controller. The secondary Enterprise Controller duplicates the primary Enterprise Controller’s configuration and takes over much of the primary Enterprise Controller’s identity, including its host name, its IP addresses, its ssh keys, and its role. Only one Enterprise Controller, either primary or secondary, can be operational at any time.
Reference: Oracle Enterprise Manager Ops Center Site Preparation Guide, High Availability for the Enterprise Controller
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