Which three statements are true concerning diagnostic c…

Which three statements are true concerning diagnostic components and requirements of Oracle 12c
Clusterware? (Choose three.)

A.
There is one ologgered service for the cluster health monitor (CHM) on each cluster node regardless of
cluster size.

B.
The Grid Infrastructure Management Repository database must run on a hub node if Flex Clusters are
used.

C.
There is one osysmond service for the cluster health monitor (CHM) on each cluster node regardless of
cluster size.

D.
The oclumon utility may be used to get and set parameters for the cluster health monitor (CHM) repository.

E.
The diagcollection.pl script must be run from the Grid home directory as the Grid infrastructure owner.

F.
The clusterware log files are stored inside the Grid Infrastructure Management Repository database used by
the cluster health monitor (CHM).

Explanation:
B: The Oracle Grid Infrastructure Management Repository Runs on one node in the cluster.This must be a Hub
Node in an Oracle Flex Cluster configuration.
C: There is one system monitor service on every node. The system monitor service (osysmond) is a real-time,
monitoring and operating system metric collection service that sends the data to the cluster logger service.
D: Use the oclumon manage command to view and change configuration information from the system monitor
service.
Syntax
oclumon manage -repos {{changeretentiontime time} | {changerepossize
memory_size}} | -get {key1 [key2 …] | alllogger [-details] | mylogger [-details]}
Where changerepossize memory_size: Use this option to change the CHM repository space limit to a specified
number of MB.
Note: The OCLUMON command-line tool is included with CHM and you can use it to query the CHM repository
to display node-specific metrics for a specified time period. You can also use OCLUMON to perform
miscellaneous administrative tasks, such as changing the debug levels, querying the version of CHM, and
changing the metrics database size.
Incorrect Answers:
E: You can collect CHM data from any node in the cluster by running the Grid_home/bin/diagcollection.pl script
on the node.
https://docs.oracle.com/database/121/CWADD/troubleshoot.htm#CHDIGCEC