Which three statements are true about Oracle Clusterware components, architecture, and behavior?
A. The Cluster Ready Services Daemon (CRSD) is responsible for monitoring and maintaining the availability of cluster resources defined in the Oracle Local Repository file (OLR).
B. All cluster nodes can write or read from the Oracle Clusterware Repository (OCR) file at the same time.
C. The Oracle High Availability Services Daemon (OHASD) is responsible for monitoring and maintaining the availability of the Clusterware stack on a cluster node.
D. Voting disks stored in Automatic Storage Management (ASM) can be discovered or used even if the ASM instance on a cluster node is down.
E. The Cluster Synchronization Services Daemon (CSSD) must connect to the cluster by accessing the Oracle Clusterware Repository (OCR) file before the Oracle High Availability Services Daemon (OHASD) is started.
F. Time synchronization in an Oracle Cluster is possible without using network Time Protocol (NTP).
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CDF is correct!
B is not correct because in 12c only master node can write to OCR files, other nodes in cluster request master node to update whenever there is a change in OCR needed. Whereas, voting files are accessible from all nodes.
BCF
BCF