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[Hardware] Free PDF Oracle - Useful 1z0-076 - Trustworthy Oracle Database 19c: Data Guard A

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【Hardware】 Free PDF Oracle - Useful 1z0-076 - Trustworthy Oracle Database 19c: Data Guard A

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Oracle Database 19c: Data Guard Administration Sample Questions (Q59-Q64):NEW QUESTION # 59
Which three can be done using Data Guard Broker?
  • A. Monitoring and managing redo transport services, and log apply services.
  • B. Automating failover to a specified target standby database.
  • C. Define logical standby database skip rules.
  • D. Configuring the standby control file, server parameter file, and data files for a standby database.
  • E. Create a new physical standby database.
  • F. Converting physical standby databases to snapshot standby databases.
Answer: B,E,F

NEW QUESTION # 60
Examine the following parameter settings of the physical standby database:
* STANDBY_FILE_MANAGEMENT=AUTO
* ENABLED_PDBS_ON_STANDBY=<null>
During which TWO tasks are files automatically created in the physical standby database after structure changes on the primary database?
  • A. Adding or dropping a redo file group
  • B. Renaming a data file in the primary database
  • C. Creating a PDB from the existing PDB within the same CDB
  • D. Performing transportable tablespaces
  • E. Adding a data file or creating a tablespace
Answer: C,E
Explanation:
When STANDBY_FILE_MANAGEMENT is set to AUTO, the Oracle Data Guard automatically creates, deletes, and renames files on the standby database to match the changes made on the primary database. The tasks that lead to the automatic creation of files on the standby include:
Adding a data file or creating a tablespace (C): When a new tablespace is created or a new data file is added on the primary database, the standby database automatically replicates this action, maintaining structural consistency with the primary database.
Creating a PDB from the existing PDB within the same CDB (D): Creating a new Pluggable Database (PDB) within a Multitenant Container Database (CDB) on the primary database triggers an automatic creation of the corresponding PDB within the standby CDB.
Reference:
Oracle Data Guard Concepts and Administration Guide

NEW QUESTION # 61
Which two statements are true when using non-rolling release upgrades in a Data Guard environment?
  • A. Modifications to the data dictionary on the primary database caused by the upgrade, are applied on a physical standby database.
  • B. User equivalence must be established for the owner of the Oracle software on the affected hosts prior to the upgrade.
  • C. During the upgrade of a logical standby database, standby redo log files must reside on O/S file systems.
  • D. The compatible parameter on a standby database that is applying redo, must be equal to or greater than the compatible parameter on the primary that is shipping redo to that standby.
  • E. Modifications to the data dictionary on the primary database caused by the upgrade, are applied on a logical standby database.
Answer: A,D
Explanation:
The compatible parameter on a standby database that is applying redo, must be equal to or greater than the compatible parameter on the primary that is shipping redo to that standby (A): This ensures that the standby database can apply redo from the primary, even after the primary has been upgraded. The COMPATIBLE parameter setting on the standby database should not preclude it from understanding the redo it receives.
Modifications to the data dictionary on the primary database caused by the upgrade, are applied on a physical standby database (C): When the primary database undergoes a non-rolling upgrade, any resulting data dictionary changes are transmitted through redo data and applied to the physical standby database.
Reference:
Oracle Database Upgrade Guide
Oracle Data Guard Concepts and Administration Guide

NEW QUESTION # 62
Your Data Guard environment consists of these components and settings:
1. A primary database
2. Two remote physical standby databases
3. The redo transport mode is set to sync
4. Real-time query is enabled for both standby databases
5. The DB_BLOCK_CHECKING parameter is set to TRUE on both standby databases You notice an increase in redo apply lag time on both standby databases.
Which two would you recommend to reduce the redo apply lag on the standby databases?
  • A. Increase the number of standby redo log files on the standby databases.
  • B. Lower DB_BLOCK_CHECKING to MEDIUM or low on the standby databases.
  • C. Decrease the redo log file size on the primary database.
  • D. Increase the size of standby redo log files on the standby databases.
  • E. Increase the size of the buffer cache on the physical standby database instances.
Answer: B,D
Explanation:
To reduce the redo apply lag on standby databases, one could increase the size of the standby redo log files.
Larger redo log files can accommodate more redo data, which may reduce the frequency of log switches and allow for more continuous application of redo data. Additionally, lowering the DB_BLOCK_CHECKING parameter to MEDIUM or LOW on the standby databases can help improve redo apply performance. High block checking can impose additional CPU overhead during the application of redo data, potentially increasing apply lag times. By reducing the level of block checking, you can lessen this overhead and help reduce the apply lag .

NEW QUESTION # 63
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.
  • A. Start the observer in a different working directory.
  • B. Enable Fast-Start Failover before starting the observer.
  • C. Create a broker configuration and enable Fast-Start Failover before starting the observer.
  • D. Set the ObserverOverride property to TRUE before starting the observer.
  • E. Start the observer using a different observer configuration file.
Answer: A,E

NEW QUESTION # 64
......
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