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QUESTION NO: 1
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?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: C
QUESTION NO: 2
Which three are benefits of using the Data Guard Broker to manage standby databases?
A. it simplifies physical standby database creation
B. It provides an easy failover capability using a single command.
C. it coordinates database state transitions and updates database properties dynamically.
D. it automatically changes database properties after the protection mode for a configuration is changed
E. It provides an easy switchover capability using a single command.
F. It simplifies logical standby database creation.
Answer: B,C,E
QUESTION NO: 3
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 will fulfill this requirement?
A. Create a database service on each standby database that is started automatically by a trigger, when the database rote is PRIMARY, modify the connection description used by client applications to include all the standby hosts and connect to the database instance using that service name.
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 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.
D. Set the DB_NAME and DB_UNIQUE_NAME identical on all databases, modify the connection descriptors on client applications to include all the standby hosts and connect to the database using that service name.
Answer: A
QUESTION NO: 4
Examine the Data Guard configuration:
DGMGRL > show configuration;
Configuration-Animals
Protection Mode MaxPerformance
Databases
dogs-Primary database sheep-Snapshot 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 Availability:
DGMGDRL> edit configuration set protection mode as max availability;
Error ORA-16627 operation disallowed since no standby databases would remain to support protection mode Failed.
Identify two statements that you can execute, either one of which will enable successful raising of the protection mode to Maximum Availability.
A. DGMGRL> convert database sheep to physical standby;
B. DGMGRL> convert database cats to physical standby;
C. DGMGRL> edit database dogs set property LogXptMode= fastsync;
D. DGMGRL> edit database sheep set property LogXptMode= fastsync;
E. DGMGRL> edit database cats set property LogXptMode= sync;
Answer: B,E
QUESTION NO: 5
Which three statements are true about snapshot standby databases?
A. Tablespaces can be dropped.
B. Tables can be dropped
C. The broker may be used to fail over to a snapshot standby database.
D. A logical standby database can be converted into a snapshot standby database.
E. Tablespaces can be created.
Answer: A,B,E
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Updated: May 28, 2022