The Database Resource Manager is automatically enabled in the maintenance window that runs the Automated
Maintenance Task. What is the reason for this?
A.
to prevent the creation of an excessive number of scheduler job classes
B.
to allow the Automated Maintenance Tasks to use system resources without any restriction
C.
to allow resource sharing only among the Automated Maintenance Tasks in the maintenance window
D.
to prevent the Automated Maintenance Tasks from consuming excessive amounts of system resources
Explanation:
Oracle Database Resource Manager (the Resource Manager) is an infrastructure that provides granular control
of database resources allocated to users, applications, and services. The Resource Manager solves many
resource allocation problems that an operating system does not manage well, including:
Excessive overhead
Inefficient scheduling
Inappropriate allocation of resources
Inability to manage database-specific resources
The Resource Manager helps overcome these problems by giving the database more control over allocation of
hardware resources and enabling you to prioritize work within the database. You can classify sessions into
groups based on session attributes, and then allocate resources to these groups to optimize hardware
utilization.