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

Oracle Database 19c: Data Guard Administration

Last Update 3 hours ago Total Questions : 107

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Question # 11

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 # 12

You notice that the SQL apply lag on your logical standby database has increased but the redo transport lag has not.

Which four could be reasons for the increase in SQL apply lag?

An undersized undo tablespace on the logical standby

Many SQL apply operations do full table scans

An increased number of bulk updates on the primary

An increased number of bulk inserts on the primary

The standby redo log files are undersized on the primary database

An undersized shared pool

Question # 13

Examine this list of possible steps:

1. Raise the compatibility level on both databases.

2. Restart SQL Apply on the upgraded logical standby database.

3. Start SQL Apply on the old primary database.

4. Perform a Switchover to the logical standby database.

5. Upgrade the logical standby database.

6. Upgrade the old primary database.

Which is the minimum number of steps in the correct order, to perform a rolling release upgrade of a data guard environment using an existing logical standby database and to enable the new functionality?

1,5,2,4,6,3

5,2,4,6,3,1

4,6,5,2,3,1

5,2,4,1

5,2,4,3,6,1

Question # 14

You created the PRODSBY1 physical standby database for the PROD primary database using gql and RMAN. You are planning to create a Data Guard Broker configuration. You execute the command:

Which three statements are true regarding the execution of the command?

The command will execute successfully only if the DG_BROKER_START initialization parameter is set to TRUE for the PROD database instance.

The PRODSBY1 standby database is automatically added to the configuration if DG_BROKER_START is TRUE for PRODSBYl.

The PRODSBYI standby database is automatically added to the configuration if Oracle Net connectivity to the PRODSBYl database instance is defined on the primary host.

The command will execute successfully only if Oracle Net connectivity to the PROD database instance is defined on the primary host.

The Data Guard Broker configuration files is automatically created in the destinations specified by the DG_BROKER_CONFIG_FILEn initialization parameters on the primary database.

The command will execute successfully only if Oracle Net connectivity to the PROD and PRODSBYl database instances are defined on the primary host.

Question # 15

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 # 16

Examine the Data Guard configuration:

DGMGRL > show configuration;

Configuration - Animals

Protection Mode: MaxAvailability

Databases:

dogs - Primary database

sheep - Snapshot standby database

cats - Physical standby database

Fast-Start Failover: DISABLED

Configuration Status:

SUCCESS

You receive an error while attempting to raise the protection mode to Maximum Protection:

DGMGRL > edit configuration set protection mode as maxprotection;

Error: ORA-16627: operation disallowed since no standby databases would remain to support protection mode

Failed.

Which is the minimum statement, or sequence of statements you must execute to enable successful raising of the protection mode to Maximum Protection?

DGMGRL > edit database dogs set property LogxptMode=sync;

DGMGRL > edit database dogs set property LogXptMode=sync;

DGMGRL > edit database cats set property LogXptMode=sync;

DGMGRL > edit database dogs set property LogxptMode=sync;

DGMGRL > edit database sheep set property LogxptMode=sync;

DGMGRL > edit database dogs set property LogXptMode=sync;

DGMGRL > edit database sheep set property LogxptMode=sync;

DGMGRL > edit database cats set property LogXptMode=sync;

DGMGRL > edit database sheep set property LogXptMode=sync;

Question # 17

Which two are prerequisites for configuring Transaction Guard in a Data Guard environment?

Grant execute permission on the DBMS_APP_CONT package to relevant database schema owners.

Ensure that connection descriptors for database clients use the failover clause with the COMMIT_OUTCOME parameter set to TRUE.

Set INSTANCE_NAME identically on all the Data Guard Configuration databases and modify the local service name on the client to include a CONNECTION_LIST containing all the standby hosts.

Create a database service with COMMIT_OUTCOME set to TRUE, and ensure clients use that service to connect to the database instance.

Create a database service with COMMIT_OUTCOME set to TRUE and ensure that the service is statically registered with the default listener on the primary host.

Question # 18

Which statement is true regarding Oracle Net connectivity for a Data Guard Broker configuration?

To enable Real-Time Query on a physical standby database, a TNS entry enabling connectivity to the standby database instance must be defined on the primary database host.

To start SQL Apply on a logical standby database, a TNS entry enabling connectivity to the primary database instance must be defined on the logical standby database host.

A TNS entry enabling connectivity to the primary database instance must be defined on each of the standby database hosts.

A TNS entry or entries enabling connectivity to standby database instance(s) must be defined on the primary database host.

The LOCAL_LISTENER initialization parameter must be set to the listener used to register the primary database instance.

Question # 19

A Data Guard environment has this configuration and these attributes:

The primary database prima is in the local region.

A physical standby database physt1 is in the local region.

A physical standby database physt2 is in a remote region.

The primary ships redo to physt1.

physt1 ships redo to physt2.

physt1 and physt2 have Real-Time Query enabled.

A sequence has been created with this SQL statement in the primary database:

CREATE SEQUENCE a NOCACHE SESSION;

Which TWO statements are TRUE?

The sequence is usable on physt1 and physt2.

The sequence is usable on physt2 if physt1 becomes unavailable, but only if an alternate redo destination has been configured on the primary database.

physt2 will no longer receive redo if physt1 becomes unavailable, unless LOG_ARCHIVE_DEST_n has the ALTERNATE attribute specified on the primary database.

physt2 will no longer receive redo if physt1 becomes unavailable, unless LOG_ARCHIVE_DEST_n has the ALTERNATE attribute specified on physt1.

The sequence is usable on physt1 but not usable on physt2.

Question # 20

Which TWO statements are true about Far Sync instances?

They do not work with Logical Standby databases.

They work in Maximum Availability mode.

They do not work with Snapshot Standby databases.

They work in Maximum Performance mode.

They work in Maximum Protection mode.

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