Your database is open and the LISTENER listener is running. The new DBA of the system stops thelistener by using the command：
LSNRCTL> STOP
What happens to the sessions that are presently connected to the database instance（）
A.The sessions are able to perform only queries.
B.The sessions are not affected and continue to function normally.
C.The sessions are terminated and the active transactions are rolled back.
D.The sessions are not allowed to perform any operations till the listener is started.
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What could be the reason for this（）
A.The listener is not running on the database node.
B.The TNS_ADMIN environmental variable is set to a wrong value.
C.The orcl.oracle.com database service is not registered with the listener.
D.The DEFAULT_DOMAIN parameter is set to a wrong value in the sqlnet.ora file.
Which naming method uses the tnsnames.ora file to store the connect descriptor used by the client
while connecting to the database instance from a remote machine（）
A.host naming method
B.local naming method
C.external naming method
D.directory naming method
A.Listeners use only the TCP/IP protocol.
B.Multiple listener processes can run simultaneously on a host.
C.Multiple database instances can be registered with a single listener.
D.The listener-related errors can be traced only at the administrative level.
E.Only one database instance can be registered with a single listener at any time.
A database user SMITH tries to query the V$SESSION view and fails to access it as follows： SQL> connect smith/smith
Connected.
SQL> SELECT * FROM v$session；
SELECT * FROM v$session *
ERROR at line 1：
ORA-00942： table or view does not exist
Which are the two possible solutions to enable SMITH to query the data in V$SESSION（）
A.granting SELECT privilege to SMITH on V$SESSION
B.granting SELECT privilege to SMITH on V_$SESSION
C.asking the user SMITH to run the catalog.sql script
D.granting SELECT privilege to SMITH on V$FIXED_TABLES
E.setting the O7_DICTIONARY_ACCESSIBILITY parameter to TRUE
F.creating a view based on V$SESSION and granting SELECT privilege to SMITH on the view that was created
Note the points about data dictionary views and dynamic performance views：
1.These are stored in the SYSTEM tablespace.
2.These are the based on the virtual tables.
3.These are owned by the SYSuser.
4.These can be queried by a normal user only if O7_DICTIONARY_ACCESSIBILTY parameter is set toTRUE.
5.V$FIXED_TABLE view can be queried to list the names of these views.
Which statements listed describe the data dictionary views（）
A.1 and 3
B.2，3，and 5
C.1，2，and 3
D.2，3，4，and 5
A.Running a query on a table returns "ORA-600： Internal Error."
B.Inserting a value in a table returns "ORA-01722： invalid number."
C.Creating a table returns "ORA-00955： name is already used by an existing object."
D.Inserting a value in a table returns "ORA-00001： unique constraint （SYS.PK_TECHP） violated."
E.Rebuilding an index using ALTER INDEX ...REBUILD fails with an error "ORA-01578： ORACLE data block corrupted （file # 14， block # 50）.
A.Running a query on a table returns "ORA-600： Internal Error."
B.Inserting a value in a table returns "ORA-01722： invalid number."
C.Creating a table returns "ORA-00955： name is already used by an existing object."
D.Inserting a value in a table returns "ORA-00001： unique constraint （SYS.PK_TECHP） violated."
E.Inserting a row in a table returns "ORA-00060： deadlock detected while waiting for resource."
You want to check the details of few errors that users have reported. You search for the alert log fileand execute few commands to find the location of the alert log file. View the Exhibit and check the commands executed.
What is the location of the alert_orcl.log file（）
A.ORACLE_HOME/dbs
B.ORACLE_HOME/rdbms
C./u01/app/oracle/admin/orcl/adump
D./u01/app/oracle/flash_recovery_area
E.ORACLE_BASE/diag/rdbms/orcl/orcl/alert
F.ORACLE_BASE/diag/rdbms/orcl/orcl/trace
You executed the following commands to find the location of the alert log file：
Where is the alert log file stored（）
A.in the BACKGROUND_DUMP_DEST location； in text format
B.in the BACKGROUND_DUMP_DEST location； in XML format
C.in the BACKGROUND_DUMP_DEST location； in both text and XML format
D.in the DIAGNOSTIC_DEST/diag/rdbms/orcl/orcl/alert directory； in text format
E.in the DIAGNOSTIC_DEST/diag/rdbms/orcl/orcl/alert directory； in XML format
F.in the DIAGNOSTIC_DEST/diag/rdbms/orcl/orcl/alert directory； in both text and XML format
You used the IMMEDIATE option to shut down your database instance. Consider the steps that
mayoccur when a database instance is started and database is opened：
1：SGA is allocated.
2：Control file is read.
3：Redo log files are opened.
4：Instance recovery is started.
5：Background processes are started.
6：Data file headers are checked for consistency.
7：Server parameter file or the initialization parameter file is read.
Which option has the correct order in which these steps occur（）
A.7，1，5，2，3，6，4
B.1，5，7，2，3，6；step 4 is not required
C.7，1，5，2，3，6；step 4 is not required
D.1，2，3，5，6，4；step 7 is not required
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View the Exhibit and examine the privileges granted to the SL_REP user. The EMP table is owned by theSCOTT user. The SL_REP user executes the following command：SQL> GRANT SELECT ON scott.emp TO hr；Which statement describes the outcome of the command（）
In which situation is the UNDO_RETENTION parameter be ignored， even if it is set to a value（）
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