Home » Oracle » 1z0-497 » Which three conditions must be met?
You want to start a global service on your database. Which three conditions must be met?
A. The database is open and registered with a global service manager.
B. The service has been disabled on that database.
C. The database role is different from the role attribute of the service.
D. The replication lag on the database does not exceed the maximum value specified for the service.
E. The service has reached its cardinality defined by the number of preferred databases.
F. No other database in the pool is a better candidate for starting the service.
Correct Answer: ABD
Explanation/Reference:
Explanation: A:To provide global services, a database must be added to a Global Data Services pool.
The valid node checking for registration (VNCR) feature provides the ability to configure and dynamically update a set of IP addresses, host names, or subnets from which registration requests are allowed by the global service manager. Database instance registration with a global service manager succeeds only when the request originates from a valid node.
*Starting a Global Service
The gdsctl start service command is used to start an existing service on the Global Data Services pool databases.
GDSCTL>start service -service emp_report1 -gdspool hr If the -role parameter is specified for the service, the service only starts on the databases in which the role matches the specified value(not C). If the -lag parameter is specified for the service, the service only starts on the databases for which replication lag does not exceed the specified value(D). Unless -preferred_all is specified for the service, the service only starts on the databases that are listed as preferred for the service.
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