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  • Exam Name: Oracle Database 19c: RAC, ASM, and Grid Infrastructure Administration
  • Last Update: Jun 18, 2024
  • Questions and Answers: 77
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1z0-078 Practice Exam Questions with Answers Oracle Database 19c: RAC, ASM, and Grid Infrastructure Administration Certification

Question # 6

Which three statements are true about ASM Cloud File System (ACFS) auditing? (Choose three.)

A.

acfsutil audit read marks audit files to indicate that it is safe to purge them.

B.

acfsutil audit init must be run by a system administrator.

C.

acfsutil audit purge can be run by an audit manager.

D.

Audit information gathered by each cluster node can be consolidated into the unified ACFS audit trail.

E.

acfsutil audit archive must be used to archive audit files that are larger than 10 MB.

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Question # 7

Examine this command and output:

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Examine this command:

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Which statement must be true for the successful execution of the second command?

A.

The disk group compatibility attribute for advm must be set to 12. l or higher.

B.

The parent snapshot must be read-only.

C.

The underlying advm volume must be configured with high redundancy.

D.

The parent snapshot must be read/write.

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Question # 8

Which two components must always be defined or specified by an administrator to make an application highly available using Oracle 92c Clusterware? (Choose two.)

A.

an application VIP

B.

A Server Pool

C.

a resource dependency definition

D.

an application resource

E.

a script agent

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Question # 9

Which three statements are true regarding multitenant architecture for RAC databases? (Choose three.)

A.

One undo tablespace for each pdb is required.

B.

PDBs can have local temporary

C.

You can open one, several, or all PD3s on one, several, or all cdb instances.

D.

It requires the cdb to use shared undo management.

E.

One undo tablespace for each instance is required.

F.

PDBs must use shared Temporary

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Question # 10

Which two statements are true regarding the default service that is automatically created upon PDB creation in a RAC database environment? (Choose two.)

A.

It is uniformly available on all instances for administrator-managed databases.

B.

It cannot be used to automate the opening of the PDB by the Clusterware.

C.

It is automatically registered in the OCR.

D.

It is created and started on only one instance when using policy-managed database configuration.

E.

It is not automatically registered in the OCR.

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Question # 11

Which two statements are true concerning Oracle 19c Clusterware-managed application VIPs? (Choose two.)

A.

An application VIP is created on the default network by the appvipcfg utility.

B.

Application VIPs do not fail over to surviving cluster nodes when the node hosting the VIP fails.

C.

If an application sends messages to be displayed and sets the display variable, then an application VIP is required.

D.

An application VIP can be created with the crsccl utility.

E.

An application VIP is created on the interconnect network by the crsccl utility.

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Question # 12

Which two statements are true about server categorization in Oracle 19c Clusterware? (Choose two.)

A.

Different nodes in a cluster may belong to separate administrator-defined categories.

B.

All nodes in a cluster belong to the same Oracle-supplied category.

C.

A server may be added to only one category using the crsctl utility.

D.

All server attributes that may be used to determine the server category are discovered automatically by Oracle Clusterware.

E.

All server attributes used for categorization are administrator modifiable.

F.

Server categories can only be used for nodes running an application server.

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Question # 13

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.)

A.

Cluster resources

B.

Database transactions

C.

Local resources

D.

Administrator-defined resources

E.

Pluggable Databases (PDBs)

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Question # 14

Which three statements are true about an Oracle Database RAC software installation? (Choose three.)

A.

SSH user equivalence for the Oracle user can be set up before the software installation.

B.

Fix-up scripts generated during the installation must be run as root on UNIX platforms.

C.

The software must be installed into a local file system on each node.

D.

The software must be installed into a cluster file system.

E.

RAC installations require Oracle Enterprise Edition.

F.

The software can be installed into an ACFS file system.

G.

The software must be installed on all nodes in the cluster.

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Question # 15

Which two statements are true about High Availability NFS (HANFS)? (Choose two.)

A.

HANFS provides high availability in case of an NFS client failure.

B.

HANFS' performance depends on the characteristics of the underlying ASM disks.

C.

HANFS does not depend on NFS services provided by the underlying operating system.

D.

HANFS provides high availability in case of cluster node failure.

E.

NFS client requests are distributed by DNS in a round-robin fashion to the cluster nodes that export the NFS

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Question # 16

You administer a six-instance, policy-managed, multitenant RAC database CDB1 with three PDBs: PDB_1,PDB_2, and PDB_3.

Server poolprod_poolhas a cardinality of three and all six hosts of the cluster are up.

Examine these commands executed on HOST01:

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Which two statements are true regarding the AR service? (Choose two.)

A.

AR can fail over to any one of the available CD31 instances.

B.

AR runs as a singleton service in the server pool prod pool and the AR service is available in each of the CDBl instances.

C.

AR can fail over to any other available CDBl instance in prod pool.

D.

AR is available only on the CDBl instance onhost01.

E.

AR is available on any one available CDBl instance in prod pool at any one time.

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Question # 17

Which two statements are true concerning buffer states as shown in GV$BH.STATUS in Oracle 19c RAC? (Choose two.)

A.

A CR image may get served from one instance to another to satisfy a read request.

B.

An xcur image is not downgraded to a SCUR image for shipping to another instance until commits occur for updated rows on the block.

C.

An xcur image is not shipped to another instance until commits occur for updated rows on the block.

D.

A Pi block image may exist for a specific database block in only one instance.

E.

An xcur block image may exist for a specific database block in only one instance.

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Question # 18

Which three statements are true about accessing ASM files? (Choose three.)

A.

Database instances perform read I/O using an ASM instance as an I/O Server.

B.

Database instances can write metadata to ASM diskgroups.

C.

Database instances perform read I/O directly to ASM Disks.

D.

ASM instances can write metadata to ASM diskgroups.

E.

If a database instance writes to an ASM-based datafile whose redundancy attribute is set to mirror, then the ASM instance writes the mirror copy

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Question # 19

Which three statements are true about fully qualified file names in ASM? (Choose three.)

A.

They can be created only if OMF is enabled.

B.

They are system Generated at the time of ASM file creation.

C.

They can be used to reference existing ASM files.

D.

They are the only valid form that can be used for single file creation of a control file.

E.

An alias may be created for an existing file by referring to the fully qualified file name.

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Question # 20

Which two statements are true about Transparent Application Continuity in Oracle RAC 19c? (Choose two.)

A.

Transparent Application Continuity is automatically enabled for a session when a database session reaches a safe place (such as a connection test or a known recoverable point) and the transactions are drained at the database.

B.

Transparent Application Continuity is enabled when failover type=auto.

C.

Recovery of the user database session is done safely and with no need for a DBA to have any knowledge of the application or make application code changes.

D.

Recovery of the user database session is done safely by enabling auto recover within the user database session.

E.

Transparent Application Continuity is enabled when failover type=All

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Question # 21

Examine the output of theasmcmdandsrvctlcommands:

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Then you execute this command:

$ srvctl relocate asm -currentnode host03 -targetnode host02

Which three statements are true regarding the execution of this command based on the output shown? (Choose three.)

A.

It fails because the ASM instance has not been shut down first on HOST03.

B.

It succeeds and starts an ASM instance on HOST02 but the ASM instance on HOST03 is not shut down until all connected clients disconnect.

C.

It succeeds and starts an ASM instance on HOST02 and shuts down the ASM instance on HOST03.

D.

It succeeds and 19c database instances connected to the ASM instance on HOST03 can be reconnected to the ASM instance on HOST02.

E.

It succeeds and 19c database instances connected to the ASM instance on HOST03 can be reconnected to the ASM instance on HOST01.

F.

It fails because an ASM instance is not configured to run on HOST02.

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Question # 22

A cluster running 19c Grid Infrastructure supports both Oracle 11g to 19c RAC databases using ASM.

TheCOMPATIBLE.ASM,COMPATIBLE.RDBMS, andCOMPATIBLE.ADVMparameters are currently set to 11.2 for all diskgroups..

You must support these capabilities in all diskgroups:

1. ACFS Replication

2. ACFS Encryption

To what minimum values must the compatible attributes be set?

A.

Set COMPATIBLE.ASM to 11.2, COMPATIBLE.RDBMS to 12.1, and COMPATIBLE.ADVM to 11.2.

B.

Set COMPATIBLE.ASM to 12.1, COMPATIBLE.RDBMS to 12.1, and COMPATIBLE.ADVM to 12.1.

C.

Set COMPATIBLE.ASM to 11.2, COMPATIBLE.RDBMS to 12.1, and COMPATIBLE.ADVM to 12.1

D.

Set COMPATIBLE.ASM to 12.1, COMPATIBLE.RDBMS to 11.2, and COMPATIBLE.ADVM to 12.1.

E.

Set COMPATIBLE.ASM to 11.2, COMPATIBLE.RDBMS to 11.2, and COMPATIBLE.ADVM to 11.2.

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Question # 23

Which statement is true concerning the installation of an Oracle Grid Infrastructure 19c patchset and its status during the installation?

A.

They can be applied in-place.

B.

When performing rolling patches, the vips for the node being patched are relocated to another node.

C.

Some Grid Infrastructure patchsets may not be intalled in a rolling fashion.

D.

When performing rolling patches,crsctl query crs softwareversionalways displays the earliest version of the software running anywhere in the cluster.

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