1z0-076 Oracle Database 19c: Data Guard Administration exact Exam Questions

Oracle Database 19c: Data Guard Administration

Last Update 1 week ago Total Questions : 107

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Question # 4

A customer asks for your recommendation regarding this requirement:

1. We plan to have a Data Guard Configuration with one primary database and one physical standby database.

2. We want zero data loss in case of a disaster involving the loss of one component.

3. We want to do Real Application Testing occasionally on the Standby Database.

Which solution, if any, satisfies these requirements?

These requirements cannot be met.

A physical standby database with synchronous redo transport that can be converted regularly into a snapshot standby to do real application testing

A snapshot standby database with real time query that can be converted regularly into a physical standby database open read write, to do real application testing

A far sync instance plus a snapshot standby database and real time apply that can be converted regularly into logical standby database to do real application testing

Question # 5

Attempting to start the observer raises an error:

DGMGRL> start observer;

DGM-16954: Unable to open and lock the Observer configuration file

Failed.

Identify two possible ways to start the observer successfully.

Enable Fast-Start Failover before starting the observer.

Start the observer in a different working directory.

Create a broker configuration and enable Fast-Start Failover before starting the observer.

Start the observer using a different observer configuration file.

Set the ObserverOverride property to TRUE before starting the observer.

Question # 6

Which three are true about using Flashback database through role transitions in a Data Guard environment?

Physical standby databases retain their current role when you flash back to a point in time before a reinstate occurred which caused this database to become a physical standby.

Logical standby databases retain their current role when you flash back through to a point in time before the switchover occurred which caused this database to become a logical standby.

Logical standby database roles are reverted to their original role when you flash back to a point in time before the switchover occurred which caused this database to become a logical standby.

Physical standby databases retain their current role when you flash back to a point in time before the switchover occurred which caused this database to become a physical standby.

Flashback database may not be used to undo a physical standby database activation.

Question # 7

Which three statements are true about Data Guard database modes and states?

Force Logging Mode is not required for a primary database but is recommended.

The Primary Database can operate in noarchivelog mode.

A Logical Standby Database can be in MOUNT state while applying changes.

Databases in a Data Guard Configuration need not operate in Flashback Logging mode.

A primary database may ship redo directly to more than nine standby databases.

Question # 8

Active Data Guard (ADG) databases are widely used to offload reporting or ad hoc query-only jobs from the primary database. Reporting workload profile is different from the primary database and often requires tuning.

Which tool is used to tune SQL workloads running on an ADG database?

Standby Statspack

In-Memory Active Session History (ASH)

Automatic Diagnostic Database Monitor (ADDM)

Automatic Workload Repository (AWR)

SQL Tuning Advisor

Question # 9

Your expertise is requested for these customer requirements:

The Data Guard environment must be in maximum protection mode.

Reports must be offloaded to a physical standby database.

There must be no lag between the primary and standby databases that affect the reports produced.

The primary database must be resilient in case of a single network failure.

Which solution is correct for these requirements?

Two standby databases, at least one of them a physical standby with Real-Time Query enabled and the STANDBY_MAX_DATA_DELAY parameter set to zero, receiving redo from the primary with synchronous transport

One physical standby database with Real-Time Query enabled, receiving redo from two Far Sync instances that are connected to the primary

One physical standby database with Real-Time Query enabled and STANDBY_MAX_DATA_DELAY parameter set to zero, receiving redo from the primary with synchronous transport

Two physical standby databases with Real-Time Query enabled, receiving redo from the primary with the LOG_ARCHIVE_DEST_n attributes SYNC NOAFFIRM to minimize the performance impact on the primary

Question # 10

Which two statements are true regarding asynchronous redo transport in a Data Guard

This transport mode satisfies the minimum requirements for Maximum Availability data protection mode.

A transaction can commit without waiting for redo to be sent to any standby database in the data guard configuration.

This transport mode satisfies the minimum requirements for Maximum Performance data protection mode.

Real-time query performance on a physical standby database improves for current read requests when using this transport mode.

The performance of SQL apply on a logical standby database always improves when using this transport mode.