For which three entities can the "what-if" command evaluation be used to determine the impact of clusterware management operations in Oracle 12c Clusterware? (Choose three.)
A. Pluggable Databases (PDBs)
B. administrator-defined resources
C. local resources
D. database transactions
E. cluster resources
Which two commands will stop the Oracle High Availability Services (OHAS) and prevent it from starting automatically at system boot om the local node? (Choose two.)
A. crsctl stop crs
B. crsctl stop cluster
C. crsctl disable crs
D. crsctl config crs
Which three are characteristics of leaf nodes in an Oracle Clusterware 12c Flex Cluster? (Choose three.)
A. They can be on a different subnet to the hub nodes.
B. Grid Naming Service (GNS) must exist on one of the leaf nodes.
C. They discover hub nodes automatically at startup.
D. They require direct access to shared storage.
E. They may discover hub nodes without having the DNS delegation configured by network.
F. Oracle database 12c RAC instances may not run on leaf nodes.
Which three commands can be used to verify the integrity of Oracle Clusterware 12c OCR and OLR files? (Choose three.)
A. ocrcheck
B. ocrcheck -config -local
C. ocrcheck -local
D. ocrcheck -config
E. cluvfy comp ocr -n all -verbose
Which two actions guarantee that time is synchronized properly on all nodes in a cluster after installing Oracle Grid Infrastructure 12c? (Choose two.)
A. Configure network time protocol (NTP) on all cluster nodes, and then start the Oracle Cluster Time Synchronization Service (CTSSD) in active mode on all cluster nodes.
B. Configure network time protocol (NT P) on all cluster nodes; Oracle Cluster Time Synchronization Service (CTSSD) will then start automatically in observer mode when the clusterware is started.
C. Deactivate network time protocol (NTP) on all cluster nodes; Oracle Cluster Time Synchronization Service (CTSSD) will then start automatically in active mode when the clusterware is started.
D. If network time protocol (NT P) is not configured properly on all cluster nodes, then Oracle Cluster Time Synchronization Service (CTSSD) will start automatically in active mode when the clusterware is started.
E. If network time protocol (NTP) time servers are unreachable on any cluster node, then Oracle CTSSD Time Synchronization Service (CTSSD) will start automatically in active mode when the clusterware is started.
Which two types of IP addresses does Oracle Clusterware 12c acquire from DHCP when it started up on a cluster node using Grid Naming Service (GNS)? (Choose two.)
A. Single Client Access Name (SCAN) virtual IP addresses (VIPs)
B. Grid Naming Service (GNS) VIPs
C. ASM Listener VIPs
D. High Available IP (HAIP) addresses uses for the cluster interconnect
E. Intelligent Platform Management Interface (IPMI) IP addresses
Your four-node cluster runs Oracle 12c Clusterware and supports a mix of RAC databases from Oracle 10g Release 2 to Oracle 12c Release 1.
All databases have one or more services defined.
The Oracle 10g Release 2 database clients connect to the database instances using the public VIP. The Oracle 11g Release 2 and 12c Release 1 clients connect to the database instances using the Single Client Access Name (SCAN).
You must change the public VIPS.
Which three steps must be done to change the VIPs on host01, the first node in the cluster? (Choose three.)
A. Use srvctl stop vip to stop the VIP on host01.
B. Use oifcfg setif to stop the VIP on host01.
C. Use srvctl start vip to start the VIP on host01.
D. Use srvctl modify nodeapps to change the VIP on host01.
E. Use oifcfg setif to start the VIP on host01.
Which statement is true concerning the execution of the addNode.sh script for adding a node to an Oracle 12c Clusterware standard Cluster that uses Grid Naming Service (GNS)?
A. Adding a node to a Standard Cluster requires the specification of the CLUSTER_NEW_NODE_ROLES parameter.
B. Multiple nodes may be added to a standard cluster by a single execution of addNode.sh.
C. Nodes in a Standard Cluster must have a VIP specified when adding the node to a cluster.
D. Nodes in a Standard Cluster must have a High Availability IP (HAIP) adaptor specified when adding the node to a cluster.
Identify three prerequisites for the successful installation of Oracle Grid Infrastructure 12c for a standard cluster when using Full Featured Grid Naming Service (GNS).
A. You must create a Grid Management Repository database.
B. You must enable the Name Server Cache Daemon (NSCD).
C. A DHCP service on the private network for the cluster is required to allocate virtual IP addresses for HAIP.
D. Each cluster node must have at least two network interface cards.
E. DNS must be configured to delegate name resolution for the cluster subdomain to the cluster.
F. A DHCP service on the public network for the cluster is required to allocate virtual IP addresses as required by the cluster.
Which three statements are true concerning backups of the OCR and OLR in Oracle Clusterware 12c? (Choose three.)
A. The OCR can be backed up using ocrconfig.
B. The OCR is backed up automatically every four hours.
C. The OCR is backed up by default to a cluster file system location.
D. The OLR can be backed up using ocrconfig.
E. The OLR is backed up automatically every four hours.
F. The OLR is backed up by default to a cluster file system location.
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