|Exam Name||:||Oracle Database 12cR2 Administration|
|Questions and Answers||:||70 Q & A|
|Updated On||:||Click to Check Update|
|PDF Download Mirror||:||1Z0-072 Brain Dump|
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What three are true about Oracle Flashback technology? (Choose three.)
FLASHBACK TRANSACTION can be used to undo the changes made by a committed transaction.
FLASHBACK TABLE can be used to rewind a table back in time.
FLASHBACK DATABASE can be used to rewind a database back and forth in time.
FLASHBACK TABLE can be used to undo dropping a column from a table.
FLASHBACK QUERY can be used to view committed data at any given point in time.
Which two can you use to recover a dropped table? (Choose two.)
FLASHBACK TABLE TO SCN
TBS1 is a permanent user-defined tablespace created with Oracle Managed Files (OMF). Examine this command:
Which is required to ensure that TBS1 is dropped and its datafiles are deleted from their file system?
The INCLUDING CONTENTS AND DATAFILES clause must be added to the command.
TBS1 must be placed in READ ONLY state.
Objects in TBS1 must not be in use when the command is executed.
TBS1 must not contain any temp files.
DB_CREATE_FILE_DEST must refer to an Oracle Automatic Storage Management (ASM)disk group.
Which three types of files are created by expdp operations? (Choose three.)
input data files
DATADIR1 and DATADIR2 are database directory objects. Examine this command:
Which two are true about the expdp operation? (Choose two.)
It creates a dump file for the entire database.
It fails if the total size of the dump file is more than 2 GB.
It creates a dump file only for objects in the SYSTEM schema.
It creates a master table to store details of the export operation.
It starts only when four worker processes are available.
Which statement is true about smallfile tablespaces?
Extent location metadata is stored in the data dictionary by default.
The number of data files is constrained only by the size of the storage array.
Maximum file size can be set to unlimited only if the logical volume manager supports striping.
Segments can span multiple tablespaces.
Segments can span multiple data files.
Which two are true about RETENTION GUARANTEE? (Choose two.)
It is a tablespace attribute.
It prevents FLASHBACK DATABASE operation failure.
It prevents out-of-space errors.
It prevents “Snapshot too old” errors.
It is a static parameter.
The ORCL database has DEFERRED_SEGMENT_CREATION set to TRUE. UNDOTBS2 is the active undo tablespace.
Examine these commands:
USER1 executes DML, which generates more than 2 MB of UNDO. What is the result and why?
It suspends the transaction, which can be resumed by increasing the size of UNDOTBS2.
It returns an error because UNDOTBS2 is fixed size and has RETENTION GUARANTEE.
It suspends the transaction, which can be resumed by increasing USER1’s quota on UNDOTBS2.
It returns an error because UNDOTBS2 has RETENTION GUARANTEE.
It suspends the transaction, which can be resumed by setting UNDOTBS1 as the active undo tablespace.
It returns an error because UNDOTBS2 is fixed size.
Which three failures require intervention for recovery? (Choose three.)
a user error such as dropping the wrong table
network interface card (NIC) failure
user process failure
Which three are true about Oracle Managed Files (OMF)? (Choose three.)
If DB_CREATE_FILE_DEST is specified but DB_CREATE_ONLINE_LOG_DEST_n is not, the redo logs and control files are placed in DB_CREATE_FILE_DEST by default.
If DB_RECOVERY_FILE_DEST is specified, at least two different locations must be specified for DB_CREATE_ONLINE_LOG_DEST_n.
If only DB_CREATE_FILE_DEST is specified, only the data files and temp files are OMF.
If DB_RECOVERY_FILE_DEST is specified but DB_CREATE_ONLINE_LOG_DEST_n is not, the redo logs and control files are placed in DB_RECOVERY_FILE_DEST by default.
If DB_CREATE_ONLINE_LOG_DEST_1 is specified but DB_CREATE_FILE_DEST is not, the data files and temp files are placed in DB_CREATE_ONLINE_LOG_DEST_1 by default.
If only DB_CREATE_ONLINE_LOG_DEST_n is specified, only the redo logs and control files are OMF.
Your client application and Oracle database are located on different hosts. Which statement is true about establishing a connection between them?
Oracle Connection Manager must be installed on the client.
Net service names must be configured on both the client and database servers.
The Listener Control utility must be installed on the client if you are using the default listener on the server.
Only Oracle Net can be used.
Oracle Net Listener is required.
In the ORCL database, USER1 has unlimited quota on TBS1 and TBS2. The USER1.EMP table with primary key EMP_ENO_PK resides in TBS1. USER1.EMP_IDX residing in TBS2 is an index on U1.EMP.ENAME. TBS1 is exported from ORCL by using this command:
The TESTDB database has a TBS1 tablespace but no TBS2. The SYSTEM user in TESTDB executes this command:
What is the result and why?
It imports EMP, EMP_ENO_PK, and the unique index associated with EMP_ENO_PK and EMP_IDX.
It imports only EMP, EMP_ENO_PK, and the unique index associated with EMP_ENO_PK.
It fails because TESTDB has TBS1.
It imports only EMP.
It fails because TESTDB does not have TBS2 to create EMP_IDX.
In your database, you create a user, HR, and then execute this command:
Which three actions can HR perform? (Choose three.)
Grant the CREATE SESSION privilege without ADMIN OPTION to other users.
Grant the CREATE SESSION privilege with ADMIN OPTION to other users.
Execute DML statements in the HR schema.
Log in to the database instance.
Revoke the CREATE SESSION privilege from other users.
Execute DDL statements in the HR schema.