Your Data Guard environment has one physical standby database using Real-Time Query.Two sentences have been created by these SQL statements:create sequence a global;create sequence b session;Neither sequence has been used since being created.Session 1 connects to the primary database instance and issues these two SQL statements:SELECT a.nextval FROM DUAL;SELECT b.nextval FROM DUAL;Then session 2 connects to the physical standby database instance and issues the same SQL statements.What output will be seen for session 2?
You must propose an Oracle Data Guard configuration for a database supporting an OLTP workload that meets these permanent requirements:1. Data loss is not permitted.2. Read-only applications should not connect to the primary database instance.Additionally, there are these requirements, only one of which is ever done at any one time:3. It should be possible to apply and test designated patches with a minimum amount of downtime.4. Upgrading to a new database release should be performed with the least possible amount of downtime.5. New application software releases should be tested against an exact up-to-date replica of the production database.You propose a primary database with one physical standby database configured in Maximum Protection mode.Which requirements do you meet?
You must configure an Oracle Data Guard environment consisting of:1. A primary database2. Three Physical Standby DatabasesYou must meet these requirements:1. A designated physical standby database should become the primary database automatically whenever the primary database falls.2. The chosen protection mode should provide the highest level of protection possible without violating the other requirement.Which redo transport mode and protection mode would you configure to meet these requirements?
Examine the Data Guard configuration:DGMGRL> show configuration;Configuration Animals -Protection Mode: MaxAvailabilityDatabases:dogs- Primary databasecats- Snapshot standby databasesheep- Snapshot standby databaseFast-Start Failover: DISABLED -Configuration Status:ORA-01034: ORACLE not available -ORA-16625: cannot reach database "dogs"DGM-17017: unable to determine configuration statusYou wish to perform a failover to Sheep.Which command, or sequence of commands, should you issue to the broker before executing "failover to sheep", using the broker?
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 reasons for this error.
Which two statements are true for Data Guard environments with multi-tenant databases?
