1z0-078無料問題集「Oracle Database 19c: RAC, ASM, and Grid Infrastructure Administration」

質問 1

Which three statements are true about diagnostic reporting for the OCR and OLR files? (Choose three.)

（A）The OCRDUMP utility can dump specific keys from the OLR in an online fashion with the clusterware running on all nodes.

（B）The OCRDUMP utility can dump specific keys from the OCR in an online fashion with the clusterware running on all nodes.

（C）The CLUVFY utility can check the integrity of the OCR but not the OLR.

（D）The OCRCHECK utility can check the OLR in an online fashion with the clusterware running on all nodes.

（E）The OCRCONFIG utilty can be used to repair a corrupt OCR file in an online fashion with the clusterware running on all nodes.

正解：A、B、D 解答を投票する

質問 2

Which three resources are managed using global concurrency control in an Oracle 19c RAC multi-instance database? (Choose three.)

（A）Latches

（B）Redo log buffers

（C）Mutexes

（D）Enqueues

（E）Cursors

（F）Database block buffers

正解：A、C、D 解答を投票する

質問 3

You performed these steps to disable an ADVM volume containing an ACFS file system:
1. Dismount the file system.
2. Disable the volume with the ASMCMD voldisable command.
Which two statements are true regarding the actions performed? (Choose two.)

（A）The volume can be enabled and the file system can be mounted back again to access the existing data.

（B）The disabling of volume does not destroy data in the file system.

（C）The ACFS file system will be permanently removed from the volume.

（D）The ACFS file system will be permanently removed from the volume only if the file system is empty.

（E）The ACFS mount registry with Oracle restart is automatically deleted.

正解：A、B 解答を投票する

質問 4

Identify three prerequisites for the successful installation of Oracle Grid Infrastructure 19c when using Full Featured Grid Naming Service (GNS). (Choose three.)

（A）Each cluster node must have at least two network interface cards.

（B）A DHCP service on the public network for the cluster is required to allocate virtual IP addresses as required by the cluster.

（C）A DHCP service on the private network for the cluster is required to allocate virtual IP addresses for HAIP.

（D）You must enable the Name Server Cache Daemon

（E）DNS must be configured to delegate name resolution for the cluster subdomain to the cluster.

（F）You must create a Grid Management Repository database.

正解：B、D、E 解答を投票する

質問 5

Secure Cluster Communication protects the cluster interconnect from common security threats when used together with Single Network Support. Secure Cluster Communication includes message digest mechanisms, protection against fuzzing, and uses Transport Layer Security (TLS) to provide privacy and data integrity between the cluster members.
Which statement is true about securing cluster interconnect communication?

（A）Database administrators or cluster administrators must provide an encryption key during new Oracle Grid Infrastructure 19c deployment or an upgrade to Oracle Grid Infrastructure 19c to secure the interconnect communication.

（B）Security for the cluster interconnect is invoked automatically as part of a new Oracle Grid Infrastructure 19c deployment or an upgrade to Oracle Grid Infrastructure 19c using an auto-generated encryption key that is stored locally on each node of the cluster in an Oracle Wallet and Database administrators or cluster administrators must provide a valid path for the Wallet file.

（C）Database administrators or cluster administrators must provide a valid server certificate and an Oracle Wallet for each node during new Oracle Grid Infrastructure 19c deployment or an upgrade to Oracle Grid Infrastructure 19c to secure the interconnect communication.

（D）Security for the cluster interconnect is invoked automatically as part of a new Oracle Grid Infrastructure 19c deployment or an upgrade to Oracle Grid Infrastructure 19c and Database administrators or cluster administrators do not need to make any configuration changes for this feature.

（E）Security for the cluster interconnect is invoked by auto-generated server certificates that will be assigned to each cluster node as part of a new Oracle Grid Infrastructure 19c deployment or an upgrade to Oracle Grid Infrastructure 19c.

正解：D 解答を投票する

質問 6

Which two actions guarantee that time is synchronized properly on all nodes in a cluster after installing Oracle Grid Infrastructure 19c? (Choose two.)

（A）If network time protocol (NTP) time servers are unreachable on any cluster node, then Oracle Cluster Time Synchronization Service (CTSSD) will start automatically in active mode when the clusterware is started.

（B）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.

（C）Configure network time protocol (NTP) on all cluster nodes; Oracle Cluster Time Synchronization Service (CTSSD) will then start automatically in observer mode when the clusterware is started.

（D）If network time protocol (NJP) 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）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.

正解：C、D 解答を投票する

質問 7

Which three statements are true about the Oracle Clusterware 19c Flex Cluster architecture? (Choose three.)

（A）Hub nodes require direct access to the OCR file.

（B）Leaf nodes require direct access to the voting disks.

（C）Each leaf node must be connected to storage shared across all leaf nodes.

（D）Each hub node must be connected to storage shared across all hub nodes.

（E）Hub nodes require direct access to the voting disks.

（F）Each leaf node must be connected to storage shared across all cluster nodes.

正解：A、D、E 解答を投票する

質問 8

Which two methods exist for enabling the collection of additional resource debugging information for specific resources controlled by Oracle 19c Clusterware? (Choose two.)

（A）Use the crsct1 set trace res "resource_name=debugging_level" command.

（B）Use the crsct1 set log res "resource_name=debugging_level2" command.

（C）Set the environment variable _USR_ORA_DEBUG=1 and then stop and restart the resource that requires resource debugging data to be collected.

（D）Use the cluvfy comp command for the specific resource within a component.

正解：A、C 解答を投票する

1z0-078 無料問題集「Oracle Database 19c: RAC, ASM, and Grid Infrastructure Administration」

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