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Oracle Database 19c: Data Guard Administration

Navigating High-Availability Database Topologies: Why Real-Time Replication Architecture Outperforms Static Materials

The enterprise infrastructure protection and database management landscape in 2026 demands highly sophisticated disaster recovery protocols and seamless data alignment strategies. As mission-critical database platforms scale across geographically separated corporate networks, achieving a verified passing status on the 1Z0-076 evaluation validates your expert ability to design, deploy, and monitor robust failover frameworks. However, many senior database administrators, infrastructure engineers, and technical support leads struggle on this intensive, 120-minute professional-tier verification by relying on short-sighted preparation habits. Trusting flat, linear answer sheets or context-stripped question repositories found on unverified public tech forums cannot prepare you for the complex situational logic of automated gap resolution or live network-based primary synchronization sequences.

True success on this 74-question Oracle University milestone requires a comprehensive, multi-dimensional grasp of both physical and logical standby architectures. Infrastructure architects must maintain sharp conceptual judgment regarding when to implement Active Data Guard real-time queries versus converting nodes into snapshot standby databases to facilitate isolated environment testing safely. Candidates frequently spend several months searching for high-yield 1z0-076 exam questions online, hoping to locate an updated oracle database 19c data guard administration 1z0-076 study guide to measure their readiness, or checking tnsnames configurations to verify their client failover parameters. Without interactive learning paths, a structured multi-tenant sandbox, or targeted practical training that can provide actual help in exam preparation, passive reading fails to develop the critical diagnostic capabilities needed to handle data reduction imbalances or isolate controller latency spikes within the cloud tenant.

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Question # 21

A Data Guard environment has this configuration and these attributes:

    A primary database

    A physical standby database named sbdb

    The configuration is in maximum availability protection mode.

Then sbdb is converted to a snapshot standby database.

Which two statements are true?

A.

The recovery time objective increases.

B.

sbdb can still receive redo.

C.

The protection mode is lowered to maximum performance.

D.

sbdb can still apply redo.

E.

The recovery point objective increases.

Question # 22

Which two are prerequisites for configuring flashback database for Oracle 19c databases, in a Data Guard environment?

A.

A far sync instance must be configured to flash back a standby when the primary has been flashed back.

B.

A fast recovery area must be configured.

C.

The database must be in ARCHTVELOG mode.

D.

The Data Guard real-time apply feature must be enabled.

E.

The data guard broker must be used.

Question # 23

Suppose that you manage the following databases in your environment:

• boston: Primary database with a single PDB called DEVI

• london: Physical standby database protecting the PDB called DEVI

• orcl: Stand-alone database with a single PDB called PDB1 as a remote clone source

You are planning to run the following command to create a remote clone in the primary database (boston) using pdbi in orcl:

Which are the THREE prerequisites for automating instantiation of the PDB in the standby database (london)?

A.

Open PDBI (remote clone source) in Read Only.

B.

Open PDBI (remote clone source) in Read Write.

C.

Set STANDBY_PDB_SOURCE_FILE_DIRECTORY to < location of the PDB > in the london database.

D.

Set standby_pdb_source_file_dblink to clone_link in the london database.

E.

Enable Active Data Guard in the _ondon database.

F.

Set STANDBY_FILE_MANAGEMENT to auto in the london database.

Question # 24

Which THREE steps are prerequisites for the creation of a physical standby database on a separate server using the RMAN active database duplication method?

A.

Configure Oracle Net connectivity on the primary host to the standby database instance.

B.

Establish user equivalence for the database software owner between the primary host and standby host.

C.

startup nomount the standby database instance.

D.

Set the DB_UNIQUE_NAME parameter on the primary database to a different value than that of the DB_NAME name parameter.

E.

Put the primary database into archivelog mode.

Question # 25

You detected an unrecoverable archive gap in your data guard environment. So, you need to roll standby.

forward in time without applying a large number of archive log files using this command:

RMAN > RECOVER STANDBY DATABASE FROM SERVICE- < primary database name > ;

When running this command, which of the following steps can be performed automatically?

1. Remember all data file names on the standby.

2. Restart standby in nomount.

3. Restore controlfile from primary.

4. Mount standby database.

5. Rename data files from stored standby names.

6. Restore new data files to new names.

7. Recover standby.

A.

2,3,5,6,7

B.

2,3,6,7

C.

1,3,5,6,7

D.

1,2,3,4,5,6,7

E.

1, 2,3,4,6,7

Question # 26

Examine this validate command:

DGMGRL > VALIDATE DATABASE VERBOSE " < database name > ";

Which THREE statements are TRUE?

A.

The command performs a comprehensive set of database checks prior to a role change.

B.

The command performs a comparison of SPFILE entries between the primary database and a specified standby database.

C.

The command performs network connectivity checks between members of a broker configuration.

D.

The command can be used for a logical standby database.

E.

The command uses information available in various Oracle Data Guard views as well as the Automatic Diagnostic Repository.

Question # 27

Which two are true about database roles in an Oracle Data Guard configuration?

A.

A Physical Standby Database can be converted into a Logical Standby Database.

B.

A Snapshot Standby Database can be a fast-start failover target.

C.

A Logical Standby Database can be converted to a Snapshot Standby Database.

D.

A Logical Standby Database can cascade redo to a terminal destination.

E.

A configuration consisting only of a primary and one or more physical standby databases can support a rolling release upgrade.

Question # 28

Which TWO statements are true about Real-Time Query?

A.

Setting standby_max_data_delay=0 requires synchronous redo transport.

B.

Real-Time Query has no limitations regarding the protection level of the Data Guard environment.

C.

Disabling Real-Time Query prevents the automatic start of redo apply when a physical standby databases opened read only.

D.

Real-Time Query sessions can be connected to a Far Sync instance.

E.

A standby database enabled for Real-Time Query cannot be the Fast-Start Failover target of the Data Guard configuration.

Question # 29

You created two remote physical standby databases using SQL and RMAN.

The primary database is a four-instance RAC database and each physical standby database has two instances.

Roles-based services are used for client connectivity and have been defined in the Grid Infrastructure.

Consider these operational requirements:

• The ability to manage multiple standby databases with a single tool

• The simplification of switchovers, failovers, reinstatements, and conversions to and from snapshot standby databases

• The automation of failovers to a specified target standby database

Which TWO tools can be used to fulfill these requirements7

A.

RMAN

B.

SQL*Plus

C.

CRSCTL

D.

Enterprise Manager Cloud Control

E.

DGMGRL

F.

SRVCTL

G.

GDCCTL

Question # 30

Which two factors can cause an increase in redo transport lag?

A.

The size of the online redo log files on the standby database.

B.

The size of the standby redo log files on the primary database.

C.

Increase in network latency between the primary database and a redo transport destination.

D.

The size of the online redo log files on the primary database.

E.

Increase in redo generation rate on the primary database.

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