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1z0-076최신버전 공부자료 - 1z0-076완벽한 덤프공부자료

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최신 Oracle Database 19c 1z0-076 무료샘플문제 (Q80-Q85):

질문 # 80
Which FOUR database parameters might be affected by or influence the creation of standby databases?

A. COMPATIBLE
B. db_file_name_convert
C. ARCHIVE_LAG_TARGET
D. DB_NAME
E. STANDBY_ARCHIVE_DEST
F. FALSERVER

정답：A,B,D,E

설명：
* DB_NAME (A): The name of the database, which should remain consistent across the primary and standby databases.
* db_file_name_convert (C): This parameter helps define the mapping of data file names from the primary to the standby database, which is crucial during the creation and operation of a standby database.
* COMPATIBLE (D): The compatibility level can influence the features that can be used on the standby database and must be consistent with or higher than that of the primary database, especially after upgrades.
* STANDBY_ARCHIVE_DEST (F): This parameter specifies the destination of archived redo log files on the standby database, which is important for log transport and apply services.
References:
* Oracle Data Guard Concepts and Administration Guide
* Oracle Database Reference

질문 # 81
Which three statements are true....... With no Oracle Streams or Goldengate configured?

A. It is recommended to have them on the...
B. They are required on a physical standby for real-time apply.
C. The LGWR process writes to them on ....
D. Only standby databases can write redo....
E. They are required only for synchronous redo transport
F. They are required on a logical standby for real-time apply

정답：B,C,F

설명：
C; The LGWR (Log Writer) process is responsible for writing redo entries from the redo log buffer to the online redo log files on the primary database. This is a fundamental process in the Oracle Database architecture, ensuring that all changes made to the database are captured for purposes such as recovery, replication, and high availability.
D; Real-time apply on a logical standby database requires standby redo log files. The standby redo log files are used to store redo data received from the primary database before it is applied to the logical standby database.
This enables the logical standby to apply changes as they are received, without waiting for the current redo log file to be archived.
E: Similarly, on a physical standby database, standby redo log files are used for real-time apply. They store redo data from the primary database, allowing the physical standby to apply redo data concurrently as it is received, rather than waiting for redo log files to be archived. This capability is crucial for maintaining a physical standby database that is closely synchronized with the primary database with minimal lag.
These functionalities are integral to Oracle Data Guard configurations and are not dependent on Oracle Streams or Oracle GoldenGate, which are separate technologies for data replication and integration.

질문 # 82
Your Data Guard environment has a remote physical standby database with real-time query enabled, which is used for reporting, and a logical standby database used for DSS reporting.
Switchovers or failovers are possible due to testing or in case of a disaster.
Clients use local TNSNAMES.ORA files to define connection strings to the database instances.
Which three will prevent clients from connecting to the wrong database instances?

A. Client TNS entries for the databases use the correct service names for the intended service.
B. The DB_NAME and DB_UNIQUE_NAME parameters must be set to the same value for all the databases in the Data Guard environment.
C. Oracle Net connectivity to the primary database instance must be established on all the standby database instances.
D. The client applications must use the correct TNS entries when requesting connections to the database instances.
E. The LOCAL_LISTENER parameter on the primary database instance must always be set.
F. A service name is registered with the local listener of each database instance.
G. The standby database services must be defined statically with the Listeners running on the standby database hosts.

정답：A,D,G

설명：
Based on Oracle Database 19c: Data Guard Administration documents, the three measures that can prevent clients from connecting to the wrong database instances during switchovers, failovers, or regular operations in a Data Guard environment are:
* B. The standby database services must be defined statically with the Listeners running on the standby database hosts.
* D. The client applications must use the correct TNS entries when requesting connections to the database instances.
* E. Client TNS entries for the databases use the correct service names for the intended service.
* In an Oracle Data Guard configuration, correctly configuring Oracle Net Services (including TNS entries and listeners) is crucial for ensuring that clients connect to the appropriate database instance, whether it's the primary or standby. Defining services on the standby database and associating them with listeners ensures that client applications can connect to the standby when needed, especially useful in a role transition or when the standby is open for read-only access or real-time query. It's essential that TNS entries used by client applications specify the correct service names that correspond to the intended
* database roles, such as primary or standby. This setup facilitates seamless connectivity to the appropriate instance based on the role, especially critical during switchovers and failovers when the roles of the databases change.
* References:Oracle's Data Guard concepts and administration guide provides extensive information on configuring network services for Data Guard environments, ensuring that applications connect to the correct database instance based on the current role of the databases in the Data Guard configuration.

질문 # 83
Examine this validate command:
DGMGRL> VALIDATE DATABASE VERBOSE "<database name>";
Which THREE statements are TRUE?

A. The command performs a comparison of SPFILE entries between the primary database and a specified standby database.
B. The command uses information available in various Oracle Data Guard views as well as the Automatic Diagnostic Repository.
C. The command performs network connectivity checks between members of a broker configuration.
D. The command performs a comprehensive set of database checks prior to a role change.
E. The command can be used for a logical standby database.

정답：C,D,E

설명：
* The command performs a comprehensive set of database checks prior to a role change (A): The VALIDATE DATABASE command in Data Guard Manager (DGMGRL) is designed to perform an exhaustive check of a specified database's readiness for a role change, such as a switchover or failover.
* The command performs network connectivity checks between members of a broker configuration (C): One of the checks includes verifying that the necessary network connectivity exists between the databases in a Data Guard Broker configuration.
* The command can be used for a logical standby database (D): The VALIDATE DATABASE command is versatile and can be used for both physical and logical standby databases to ensure their readiness for role changes.
References:
* Oracle Data Guard Broker documentation
* Oracle Data Guard Concepts and Administration Guide

질문 # 84
Which THREE are among the various tasks performed by the Data Guard Monitor (DMON) process?

A. activating role-based services appropriately in the various database instances of the configuration, based on the database role
B. maintaining information about all members of the broker configuration in binary configuration files.
C. performing role transitions when switchover requests are made
D. communicating with the DMON process of the observer to monitor a primary database in case a fast start failover is required
E. communicating with dkon processes in other database instances that are part of the broker configuration

정답：A,B,C

설명：
The Data Guard Monitor (DMON) process is a key component of Oracle Data Guard. It plays a crucial role in managing and monitoring the state of both the primary and standby databases in a Data Guard configuration.
Performing role transitions when switchover requests are made (A): DMON is responsible for coordinating the switchover process between the primary and standby databases. This involves safely transitioning the roles of the databases to ensure data protection and availability.
Maintaining information about all members of the broker configuration in binary configuration files (B): DMON maintains detailed information about the databases in the Data Guard configuration, including their roles, states, and network addresses. This information is stored in binary configuration files, which are used by the Data Guard Broker to manage the Data Guard environment.
Activating role-based services appropriately in the various database instances of the configuration, based on the database role (C): DMON activates services that are appropriate for the role of each database in the Data Guard configuration. For example, it may activate different services on a primary database than on a standby database, based on the specific requirements of each role.
Reference:
Oracle Data Guard Concepts and Administration
Oracle Data Guard Broker documentation

질문 # 85
......

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Oracle 1z0-076최고덤프, 1z0-076최신버전공부자료

1z0-076최신버전 공부자료 - 1z0-076완벽한 덤프공부자료

최신 Oracle Database 19c 1z0-076 무료샘플문제 (Q80-Q85):

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