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Guide for Oracle Database 19c: RAC, ASM, and Grid Infrastructure Administration

Quiz Oracle Database 19c: RAC, ASM, and Grid Infrastructure Administration

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/ 10

Quiz

1/10
Examine this sequence of commands:

Certification Exam Oracle Database 19c: RAC, ASM, and Grid Infrastructure Administration Oracle Oracle-1Z0-078 1-3522116853

The cluster consists of nodes HOST01, HOST02, HOST03 and HOST04, and the clusterware is running
on all four nodes.
Which three statements are true about the result of the root user running these commands on
HOST01? (Choose three.)
Select the answer
3 correct answers
A.
The Oracle Clusterware stack is stopped on all nodes.
B.
The Oracle Clusterware stack is prevented from being automatically started on host01.
C.
The Oracle Clusterware stack is prevented from being automatically started on all nodes.
D.
The Oracle Clusterware stack is stopped on all nodes except host01.
E.
The Oracle Clusterware stack is started on all nodes except host01.
F.
The Oracle Clusterware stack is started on all nodes.

Quiz

2/10
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?
Select the answer
1 correct answer
A.
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.
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.
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.
D.
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.
E.
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.

Quiz

3/10
Which three resources are managed using global concurrency control in an Oracle 19c RAC multi-
instance database? (Choose three.)
Select the answer
3 correct answers
A.
Database block buffers
B.
Mutexes
C.
Redo log buffers
D.
Latches
E.
Enqueues
F.
Cursors

Quiz

4/10
Examine this command:
SQL> CREATE PLUGGABLE DATABASE pdb3 FROM pdb1;
Which three conditions must be true for successful execution of this command on a RAC database?
(Choose three.)
Select the answer
3 correct answers
A.
The source PD3 must be closed on the CDS instance from where the command is executed.
B.
The source PD3 must be in read only mode on all CD3 instances if the CDB is in No Archive mode.
C.
The source pdb must use a global temporary
D.
It can be executed only by a common user with the create pluggable database system privilege connected to the root container.
E.
Oracle Managed Files must be enabled or PD3 file name convert must be set.
F.
All running CDB instances must be open in restricted mode.

Quiz

5/10
Which statement describes the usage of Dynamic Service Fallback in Oracle RAC 19c?
Select the answer
1 correct answer
A.
Dynamic Service Fallback allows a service to relocate to an available instance when the service is stopped on a preferred instance.
B.
Dynamic Service Fallback allows a service to fall back to a preferred instance when the available instance performance falls below a specified threshold after it was failed over to an available instance.
C.
To enable Dynamic Service Fallback, you should specify the level of performance of a preferred instance for a service to be relocated to an available instance by setting the -fallback attribute of a service to "Low, Medium, or High".
D.
Dynamic Service Fallback allows a service to fall back to a preferred instance when it becomes available after it was failed over to an available instance.

Quiz

6/10
Which three statements are true about ASM Cloud File System (ACFS) encryption? (Choose three.)
Select the answer
3 correct answers
A.
A copy of an encrypted file is not encrypted unless it is created in an encrypted directory.
B.
An ACFS snapshot can be ACFS encrypted.
C.
acfsutil encr off can be run by an encryption manager who may not have system administrator privileges.
D.
acfsucil encr on can be used to specify the encryption key length for a directory or file.
E.
acfsutil encr inic is used to establish role separation between encryption managers and encryption auditors.

Quiz

7/10
For which three entities can the "what-if" command evaluation be used to determine the impact of
clusterware management operations in Oracle 19c Clusterware? (Choose three.)
Select the answer
3 correct answers
A.
Cluster resources
B.
Database transactions
C.
Local resources
D.
Administrator-defined resources
E.
Pluggable Databases (PDBs)

Quiz

8/10
Which two statements are true about the Global Enqueue Service, Instance Locks, and global
enqueues in Oracle 19c RAC? (Choose two.)
Select the answer
2 correct answers
A.
Global Enqueues and Instance Locks replace mutexes completely in RAC database instances.
B.
Global Enqueues may have converters and waiters in the same instance.
C.
Global Enqueues may have owners and waiters in the same instance.
D.
Global Enqueues and Instance Locks replace latches completely in RAC database instances.
E.
In a RAC database, there is no LMDO process if only one instance is running.
F.
In a RAC One Node database, there is no LMD) process if only one instance is running.

Quiz

9/10
Which task must be performed before running the OPatch utility to patch Oracle Grid Infrastructure
19c?
Select the answer
1 correct answer
A.
Update the path environment variable on each cluster node to point to the 50RACLE HOME/OPacch directory
B.
Stage the patch on the cluster node where the OPacch utility will be executed.
C.
Update the path environment variable on the node where you will run the OPatch utility to point to the SORacle HOME/OPacch directory.
D.
Stage the patch on all cluster nodes.

Quiz

10/10
Which two statements are true concerning diagnostic components and requirements of Oracle 19c
Clusterware? (Choose two.)
Select the answer
2 correct answers
A.
The clusterware log files are stored inside the Grid Infrastructure Management Repository database used by the cluster health monitor
B.
The diagcolleccion.pl script must be run from the Grid home directory as the arid infrastructure owner.
C.
There is one ologgerd 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.
There is one osysmond service for the cluster health monitor (CHM) on each cluster node regardless of cluster size.
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  • Quiz name:Oracle Database 19c: RAC, ASM, and Grid Infrastructure Administration
  • Total number of questions:77
  • Number of questions for the test:50
  • Pass score:80%

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