Mar 28, 2026 PASS Oracle 1z1-076 EXAM WITH UPDATED DUMPS
1z1-076 Questions PDF [2026] Use Valid New dump to Clear Exam
Oracle 1z1-076 Exam Syllabus Topics:
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NEW QUESTION # 19
Examine the Data Guard configuration: DGMGRL> show configuration;
Configuration - Animals
Protection Mode: MaxPerformance
Databases:
dogs- Primary database
sheep - Physical standby database
cats- Snapshot 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.
What can you conclude based on this error?
- A. Cats is a snapshot standby database.
- B. The redo transport mode is set to asyn: for the standby database Cats.
- C. The redo transport mode is set to async for the standby database Sheep.
- D. The redo transport mode is set to async for both standby databases.
Answer: A
Explanation:
The error indicates that switching the protection mode to Maximum Protection is not possible due to the presence of a snapshot standby database in the Data Guard configuration, which cannot participate in synchronous redo transport required by the Maximum Protection mode. Therefore, the correct answer is:
* D. Cats is a snapshot standby database.
Comprehensive Detailed Explanation:In an Oracle Data Guard environment, the Maximum Protection mode requires that all redo data be transmitted synchronously to at least one standby database, ensuring no data loss even in the event of a primary database failure. However, a snapshot standby database, by its nature, allows read-write access and is temporarily disconnected from the redo stream, which makes it unable to participate in the synchronous redo transport required by Maximum Protection mode. The presence of a snapshot standby database in the Data Guard configuration thus prevents the activation of Maximum Protection mode, as it cannot guarantee zero data loss without a standby database capable of receiving redo data synchronously.
References:Oracle Data Guard documentation clearly outlines the requirements and restrictions of different protection modes, including the necessity for standby databases to participate in synchronous redo transport to enable Maximum Protection mode. The inability of snapshot standby databases to fulfill this requirement is a key consideration when planning Data Guard configurations and protection levels.
NEW QUESTION # 20
You must configure flashback database for your Oracle 19c databases that will be part of a Data Guard Broker configuration.
The databases are all in ARCHIVELOG mode.
You will execute the SQL statement:
ALTER DATABASE FLASHBACK ON;
Which three are true concerning this command?
- A. It will execute successfully while an Oracle 19c primary database is open.
- B. It will execute successfully on an Oracle 19c physical standby database while Real Time Query is active.
- C. It will execute successfully on an Oracle 19c logical standby database while SQL apply is active.
- D. If executed successfully on an Oracle 19c primary database, flashback will also be enabled on all physical standby databases that are part of the configuration.
- E. It will execute successfully while an Oracle 19c primary database is mounted.
- F. If executed successfully on an Oracle 19c primary database, flashback will also be enabled on all logical standby databases that are part of the configuration.
Answer: A,C,E
Explanation:
The command ALTER DATABASE FLASHBACK ON; enables the Flashback Database feature, which provides a way to quickly revert an entire Oracle database back to a previous point in time. This command can be executed while an Oracle 19c primary database is either open (option A) or mounted (option B). It is also applicable to an Oracle 19c logical standby database while SQL Apply is active (option E). However, it's important to note that enabling Flashback Database on the primary does not automatically enable it on all associated standby databases, whether they are physical or logical. Each database in a Data Guard configuration must have Flashback Database explicitly enabled if desired. Real Time Query being active on a physical standby does not directly relate to the ability to execute this command on the standby. Reference: The explanation is based on Oracle's concepts for Flashback Technology and Data Guard configurations as detailed in the Oracle Database Backup and Recovery User's Guide and the Oracle Data Guard Concepts and Administration guide.
NEW QUESTION # 21
Your Data Guard environment contains a primary database and three standby databases with these attributes:
1. prod : Primary database
2. prod_prq : Physical standby database with real-time query enabled used by reporting applications
3. prod_lsby: Logical standby database used by DSS
4. PROD_SSBY: Snapshot standby database used for Real Application Testing Which TWO can be used to prevent clients from connecting to the wrong database instance?
- A. Create role based services with the si vet] utility when using clusterware for Oracle RAC databases or Oracle Restart for single instance Oracle databases.
- B. Establish Oracle Net connectivity to the primary database instance from all the standby database instances.
- C. Create database services on each of the standby databases, start the services, and add connection descriptors on the clients to connect to those services.
- D. Create a static service for each of the databases, register it with the local listener of each database instance, and add connection descriptors on clients to connect to those services.
- E. Create database services for each database and use event triggers to make sure that services are activated only when the database is in the correct role.
Answer: C,E
Explanation:
Creating dedicated database services for each database instance (Option D) and utilizing event triggers to manage these services based on the role of the database (Option E) ensure that clients connect to the appropriate database instance based on its current role and state. This approach leverages the flexibility and control provided by Oracle Net services and database event management to direct client connections to the suitable primary or standby instance, enhancing the overall robustness and reliability of the Data Guard environment. References: Based on Oracle Database 19c best practices for managing connectivity and services in a Data Guard setup, including the use of role-based services and event-driven service management.
NEW QUESTION # 22
Which two factors can cause an increase in redo transport lag?
- A. The size of the standby redo log files on the primary database.
- B. The size of the online redo log files on the primary database.
- C. Increase in network latency between the primary database and a redo transport destination.
- D. Increase in redo generation rate on the primary database.
- E. The size of the online redo log files on the standby database.
Answer: C,D
NEW QUESTION # 23
You created a physical standby database prodsbyi from the primary database prod using SQL and RMAN.
Which THREE are prerequisites for creating a Data Guard Broker configuration to manage these databases?
- A. The LOG_ARCHIVE_DEST_n parameters with the service attribute set must be cleared.
- B. The standby database must have supplemental logging enabled.
- C. A local net service name to enable connectivity to the PRODSBYI database instance must be defined on the primary database host.
- D. The primary database must have supplemental logging enabled.
- E. The DG_BROKER_START parameter must be set to TRUE for both database instances.
- F. The primary database must have FORCE LOGGING enabled.
Answer: C,D,E
Explanation:
When setting up a Data Guard Broker configuration for a primary database and its physical standby, the following prerequisites must be met:
* A: Oracle Net connectivity must be defined on both the primary and standby hosts to enable the respective database instances to communicate with each other.
* B: Supplemental logging is required on the primary database because it provides additional logging necessary for the standby database to be able to apply changes from the primary database accurately.
* F: The DG_BROKER_START parameter must be set to TRUE for both the primary and standby
* database instances. This parameter is used to start the Data Guard Broker process which manages the configuration.
Options C and D are not prerequisites for creating a Data Guard Broker configuration. Additionally, while FORCE LOGGING mode (option E) is recommended as a best practice to prevent possible data inconsistencies during media recovery, it is not a strict prerequisite for creating a Data Guard Broker configuration.
References: This guidance is based on Oracle's best practices for setting up Data Guard configurations, as found in the Oracle Data Guard Broker documentation and the Oracle Data Guard Concepts and Administration guide.
NEW QUESTION # 24
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. Creating a PDB from the existing PDB within the same CDB
- C. Renaming a data file in the primary database
- D. Performing transportable tablespaces
- E. Adding a data file or creating a tablespace
Answer: B,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.References:
* Oracle Data Guard Concepts and Administration Guide
NEW QUESTION # 25
Your Data Guard environment has two remote physical standby databases.
Client applications use the local naming method to connect to the primary database instance.
You want applications to automatically connect to the new primary database instance in case of a switchover or a failover.
Which set of actions will fulfill this requirement?
- A. Set the LOCAL_LISTENER parameter for all the database instance to register services with the default listener on the primary database host.
- B. Create a database service on the primary database that is started automatically by a trigger, when the database role is PRIMARY; modify the connection descriptors used by client applications to include all the standby hosts and connect to the database instance using that service name.
- C. Set DB_NAME and DB_UNIQUE_NAME identically on all databases; modify the connection descriptors on client applications to include all the standby hosts and connect to the database instance using that service name.
- D. Set the INSTANCE NAME parameter identically on all databases; modify the connection descriptor on client applications to include all the standby hosts and connect to the database instance using that service name.
Answer: B
Explanation:
For seamless client redirection in a Data Guard environment, the following steps should be taken:
* Create a database service on the primary database that is started automatically by a trigger when the database role is PRIMARY (B): This ensures that the service is only available on the primary database and is automatically started after a role transition due to switchover or failover.
* Modify the connection descriptors used by client applications to include all the standby hosts and connect to the database instance using that service name (B): Client applications use the connection descriptors that include all potential primary hosts (i.e., the current primary and all standbys). This enables clients to connect to whichever database is currently acting as the primary using the service name.References:
* Oracle Data Guard Concepts and Administration Guide
* Oracle Real Application Clusters Administration and Deployment Guide
NEW QUESTION # 26
Which THREE are true about using flashback database in a Data Guard environment?
- A. You can use it when real-time apply is enabled in case the phylt may not be used to flash back a primary database after a failover to a logical standby.
- B. You can use it when real-time apply is enabled in case the physical standby suffers from logical corruption.
- C. When a flashback database operation is performed on a primary database, a physical standby database is also flashed back automatically.
- D. When a flashback database operation is performed on a primary database, a logical standby database is also flashed back automatically.
- E. It may not be used to flash back a primary database after a failover to a physical standby.
- F. It may be used to flash back a physical standby that receives redo from a far sync instance.
Answer: B,E,F
NEW QUESTION # 27
Which feature is available when monitoring a Data Guard configuration using Enterprise Manager Cloud Control, but is not available using DGMGRL or by using SQL?
- A. Performing a verify operation
- B. Automatic creation of standby redo logs
- C. Analyzing the dmon process trace file
- D. Viewing a logical standby database apply lag
- E. Creating a broker configuration before creating the databases
Answer: D
NEW QUESTION # 28
Your Data Guard environment has two remote physical standby databases.
Client applications use the local naming method to connect to the primary database instance.
You want applications to automatically connect to the new primary database instance in case of a switchover or a failover.
Which set of actions will fulfill this requirement?
- A. Set the LOCAL_LISTENER parameter for all the database instance to register services with the default listener on the primary database host.
- B. Create a database service on the primary database that is started automatically by a trigger, when the database role is PRIMARY; modify the connection descriptors used by client applications to include all the standby hosts and connect to the database instance using that service name.
- C. Set DB_NAME and DB_UNIQUE_NAME identically on all databases; modify the connection descriptors on client applications to include all the standby hosts and connect to the database instance using that service name.
- D. Set the INSTANCE NAME parameter identically on all databases; modify the connection descriptor on client applications to include all the standby hosts and connect to the database instance using that service name.
Answer: B
Explanation:
For seamless client redirection in a Data Guard environment, the following steps should be taken:
Create a database service on the primary database that is started automatically by a trigger when the database role is PRIMARY (B): This ensures that the service is only available on the primary database and is automatically started after a role transition due to switchover or failover.
Modify the connection descriptors used by client applications to include all the standby hosts and connect to the database instance using that service name (B): Client applications use the connection descriptors that include all potential primary hosts (i.e., the current primary and all standbys). This enables clients to connect to whichever database is currently acting as the primary using the service name.
Reference:
Oracle Data Guard Concepts and Administration Guide
Oracle Real Application Clusters Administration and Deployment Guide
NEW QUESTION # 29
Which three are true regarding prerequisites for a logical standby database as a disaster recovery solution?
- A. Ensure that no ROWID data types are contained in the primary database.
- B. Ensure that supplemental logging is enabled on the primary database.
- C. Do not perform any nologging operations on the primary.
- D. Ensure that flashback is enabled on the primary database.
- E. Ensure that no BFILE LOB data types are contained in the primary database.
Answer: B,C,E
NEW QUESTION # 30
On your logical standby database, you specified these rules:
After completion of the weekend batch cycle you attempt to delete the SQL Apply filters:
Which is TRUE regarding the execution of the UNSKIP procedure?
- A. It deletes both the SQL Apply filters.
- B. It succeeds but the SQL Apply filters are not deleted.
- C. It succeeds only if SQL apply is stopped before deleting the SQL Apply filter.
- D. It succeeds only if all DML statements executed on the primary have been applied on the logical standby deleting the SQL Apply filter.
- E. It returns an error because the syntax to delete a SQL Apply filter must specify the same object names as specified when the filter was added.
Answer: A
Explanation:
The execution of the UNSKIP procedure is designed to remove SQL Apply filters that have been previously set up on a logical standby database. Based on the provided statements, the UNSKIP procedure is directed to delete any SQL Apply filters for DML statements associated with objects in the 'HR' schema that start with
'EMP'. Since both SKIP procedures had the same schema name ('HR') and statement type ('DML'), and the UNSKIP procedure uses a wildcard (%) for the object name, it will successfully remove both of the SQL Apply filters for 'EMP_NEW' and 'EMP_OLD', as both object names match the pattern provided in the UNSKIP procedure.
References:Oracle's Data Guard documentation and SQL Language Reference provide insights into managing SQL Apply filters on a logical standby database using the DBMS_LOGSTDBY package. This includes adding and removing filters through SKIP and UNSKIP procedures.
NEW QUESTION # 31
Which three actions are performed by the START PLAN procedure of the DBMS ROLLING package?
- A. switching the primary database to the logical standby role
- B. creating a guaranteed restore point on the primary database
- C. starting media recovery on all the Leading Group Standby databases
- D. creating a guaranteed restore point on the standby databases
- E. building a LogMiner dictionary on the primary database instance
- F. converting the designated physical standby database into a logical standby database
Answer: B,D,E
Explanation:
The DBMS_ROLLING package facilitates a rolling upgrade process across a Data Guard configuration. The START PLAN procedure in particular handles several critical actions, including:
Creating a guaranteed restore point on the standby databases (B): This ensures that the standby databases can be reverted to their state before the rolling upgrade process in case of any issues.
Building a LogMiner dictionary on the primary database instance (C): This is necessary for logical standby databases to interpret redo data during the SQL Apply process.
Creating a guaranteed restore point on the primary database (D): Similar to the standby databases, this ensures that the primary database can be reverted to a known good state if necessary.
Reference:
Oracle Database PL/SQL Packages and Types Reference
Oracle Data Guard Concepts and Administration Guide
NEW QUESTION # 32
There are currently 6 applief. and 6 pfepafef processes running and no idle applier processes on y logical standby database.
The max_SERVERS SQL apply parameter and number of archiver processes are both set to 12.
Identify two changes, each of which would allow you to increase the number of applier processes.
- A. Increase the value for the MAX_SERVERS SQL apply parameter.
- B. Decrease the number of archiver processes on the standby database.
- C. Increase the parallel_max_server initialization parameter.
- D. Increase the RECOVERY_PARALLEL initialization parameter.
- E. Increase the processes initialization parameter. D Decrease the number of FREPARER processes.
Answer: A,C
Explanation:
To increase the number of applier processes on a logical standby database, the following changes can be made:
* C: Increasing the value for the MAX_SERVERS SQL apply parameter would allow for more applier processes to be initiated, assuming that system resources permit.
* D: Increasing the PARALLEL_MAX_SERVERS initialization parameter would allow for more parallel execution processes, which can be used by SQL apply to increase the number of applier processes.
Option A is incorrect as decreasing the number of archiver processes will not necessarily increase the number of applier processes; these are unrelated components.
Option B is incorrect because the 'FREPARER' processes do not exist, it seems to be a typographical error, and the 'REPARER' is not a valid Oracle process or parameter.
Option E is incorrect because the RECOVERY_PARALLELISM parameter controls the number of processes used for instance recovery and media recovery, not for SQL apply.
References: Oracle Data Guard Concepts and Administration guide details the configuration and tuning of SQL apply-related parameters in logical standby databases.
NEW QUESTION # 33
Which three are true about using RMAN in a Data Guard environment?
- A. A recovery catalog is required when RMAN is used to take backups from a physical standby database if you plan to recover the primary using those backups.
- B. Backups of data files taken on a physical standby are interchangeable with a primary.
- C. A recovery catalog is required when RMAN is used to take backups from a logical standby database in a Data Guard configuration if you plan to recover the primary using those backups.
- D. Backups of archived redo logs taken on a physical standby are interchangeable with a primary.
- E. Backups of control files taken on a physical standby are not interchangeable with a primary.
Answer: B,D,E
NEW QUESTION # 34
Examine the Data Guard configuration: DGMGRL> show configuration;
Configuration - Animals
Protection Mode: MaxPerformance
Databases:
dogs- Primary database
sheep - Physical standby database
cats- Snapshot 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.
What can you conclude based on this error?
- A. Cats is a snapshot standby database.
- B. The redo transport mode is set to asyn: for the standby database Cats.
- C. The redo transport mode is set to async for the standby database Sheep.
- D. The redo transport mode is set to async for both standby databases.
Answer: A
Explanation:
Comprehensive Detailed Explanation:
In an Oracle Data Guard environment, the Maximum Protection mode requires that all redo data be transmitted synchronously to at least one standby database, ensuring no data loss even in the event of a primary database failure. However, a snapshot standby database, by its nature, allows read-write access and is temporarily disconnected from the redo stream, which makes it unable to participate in the synchronous redo transport required by Maximum Protection mode. The presence of a snapshot standby database in the Data Guard configuration thus prevents the activation of Maximum Protection mode, as it cannot guarantee zero data loss without a standby database capable of receiving redo data synchronously.
Reference:
Oracle Data Guard documentation clearly outlines the requirements and restrictions of different protection modes, including the necessity for standby databases to participate in synchronous redo transport to enable Maximum Protection mode. The inability of snapshot standby databases to fulfill this requirement is a key consideration when planning Data Guard configurations and protection levels.
Explanation:
The error indicates that switching the protection mode to Maximum Protection is not possible due to the presence of a snapshot standby database in the Data Guard configuration, which cannot participate in synchronous redo transport required by the Maximum Protection mode. Therefore, the correct answer is:
NEW QUESTION # 35
Which statement is true regarding Oracle Net connectivity for a Data Guard Broker configuration?
- A. 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.
- B. 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.
- C. A TNS entry enabling connectivity to the primary database instance must be defined on each of the standby database hosts.
- D. The LOCAL_LISTENER initialization parameter must be set to the listener used to register the primary database instance.
- E. A TNS entry or entries enabling connectivity to standby database instance(s) must be defined on the primary database host.
Answer: E
NEW QUESTION # 36
Which THREE statements are true about snapshot standby databases?
- A. If datafiles grow while a database is a snapshot standby database, then they shrink when converted back to a physical standby database.
- B. A guaranteed restore point is created automatically when a physical standby database is converted into a snapshot standby database.
- C. Snapshot standby databases may be used for rolling database upgrades.
- D. A snapshot standby database must be opened at least once in read-write mode before it can be converted into a physical standby database.
- E. A snapshot standby database can be the only standby database in a Maximum Protection Oracle Data Guard configuration.
Answer: B,C,D
NEW QUESTION # 37
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?
- A. The command will execute successfully only if the DG_BROKER_START initialization parameter is set to TRUE for the PROD database instance.
- B. 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.
- C. 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.
- D. The command will execute successfully only if Oracle Net connectivity to the PROD and PRODSBYl database instances are defined on the primary host.
- E. The PRODSBY1 standby database is automatically added to the configuration if DG_BROKER_START is TRUE for PRODSBYl.
- F. The command will execute successfully only if Oracle Net connectivity to the PROD database instance is defined on the primary host.
Answer: A,B,F
Explanation:
The command executed (CREATE CONFIGURATION 'DGConfig' AS PRIMARY DATABASE IS 'PROD' CONNECT IDENTIFIER IS PROD;) is used to create a Data Guard Broker configuration named 'DGConfig'. The successful execution of this command depends on several conditions:
A: The DG_BROKER_START parameter must be set to TRUE on the primary database to start the Data Guard Broker processes. Without the broker processes running, the configuration cannot be created.
D: Oracle Net connectivity to the PROD database instance must be established on the primary host. This is because the Data Guard Broker requires network accessibility to communicate with the primary database and manage the configuration.
E: When the configuration is created, the Data Guard Broker configuration files are indeed automatically created in the locations specified by the DG_BROKER_CONFIG_FILEn parameters on the primary database.
It's important to note that the command will not automatically add the PRODSBY1 standby database to the configuration (thus B and C are not correct), and there is no requirement for the standby database to have Oracle Net connectivity defined on the primary host for the execution of this command (making F incorrect as well).
NEW QUESTION # 38
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