Which three statements are true about Quality of Service Management (QoS)? (Choose three.)
A.
A server pool directive override can be used to modify the database parameter CPU_COUNT for all databases within one server pool.
B.
It requires a resource manager plan to be active on databases managed by QoS.
C.
It supports RAC One Node databases if they are assigned to server pools with a maximum size of one server.
D.
One QoS policy can span multiple clusters if they contain server pools, assigned to be managed by QoS.
E.
The command-line utility qosct1 can be used to change the password of the internal user QOSADMIN.
not A: A server pool directive override sets the minimum server count, maximum server count, and importance attributes for a server pool…
If you choose to implement the recommendation to modify the instance caging settings, then Oracle Database QoS Management modifies the CPU_COUNT parameter uniformly for all the database instances running on servers in the server pool.
YES B: Each managed database must also have Resource Manager enabled and be enabled for QoS Management.
YES C: If a singleton service is required because the application cannot effectively scale across multiple RAC servers, the service can be hosted in a server pool with maximum size of one.
not D: QoS is for one cluster
YES E: qosctl qosadmin -setpasswd qosadmin:After you enter this command, you are prompted to enter the password of the default QoS Admin user one or more times.
BCE
Agree
https://docs.oracle.com/database/121/APQOS/install_config.htm#APQOS151