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Which three statements about replication options are true?

AThe Oracle Streams information flow consists of three components: capture, redo transfer, arid consumption.

BOracle Streams is deprecated in Oracle Database 12c Release 1.

COracle Database Advanced Replication is deprecated in Oracle Database 12c Release 1, including multimaster replication, updatable materialized views, multitier materialized views, and deployment templates.

DOracle Database Advanced Queuing is independent of Oracle Streams.

EThe Oracle GoldenGate software architecture is composed of three primary components: capture, propagate, and trail files.

All database users are currently connected to the database instance and are working. The HR user opens three database sessions and executes this command in one of the sessions:

SQL> UPDATE persons SET ccode='U031' WHERE ccode='U029';

123 rows updated.

SQL> DELETE FROM persons WHERE exp='Y';

3 rows deleted.

The SYS user opens a new session after HR executes the preceding commands. Which option represents the sessions that can see the effect of the UPDATE and DELETE commands?

Aall sessions of the HR user

Ball sessions of the HR user and the SYS user

Cthe session of the HR user that executed the commands

Dall sessions for which database users have access privileges to the PERSONS table

Examine the output:

SQL> SELECT index_name, status FROM dba_indexes WHEREstatus='UNUSABLE';

INDEX_NAME STATUS

--------------------- -----------------

EIND UNUSABLE

Which two statements about this index are true?

AIt is ignored by the query optimizer.

BIt is not used while the index is being rebuilt.

CThe index cannot be rebuilt, and has to be re-created.

DThe index is automatically rebuilt when used the next time.

Oracle Database 12c provides new task-specific privileges (SYSBACKUP, SYSDG, and SYSKM) to handle standard administration duties. Which two statements about these standard administration privileges are true?

AThese administrative privileges enable you to connect to the database only if the database is open.

BAfter connecting with these privileges, you are connected under a predefined user whose name is the privilege name.

CThese administrative privileges allow a user to view DBA_xxx, GV$, VS, and SELECT on application tables.

DWithout being a member of OSBACKUP. OSDG, and OSKM OS groups, users cannot connect as administrative users by using OS authentication.

Which three statements are true about System Global Area (SGA)?

ASGA contains shared memory structures for all Oracle processes running on a single server.

BEach server process has its own SGA.

CSGA is allocated automatically when a database is started.

DSGA is used to speed up queries by caching data blocks, program data, information about database objects, and query results

ESGA is allocated automatically when a database is mounted.

FSGA is read and written by server and background processes.

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