1Z0-062 | Renewal Oracle 1Z0-062 dumps
Q31. Examine the parameters for your database instance:
NAMETYPE VALUE
undo_management string AUTO
undo_retentioninteger 12 00
undo_tablespace string UNDOTBS1
You execute the following command:
SQL> ALTER TABLESPACE undotbs1 RETENTION NOGUARANTEE;
Which statement is true in this scenario?
A. Undo data is written to flashback logs after 1200 seconds.
B. Inactive undo data is retained for 1200 seconds even if subsequent transactions fail due to lack of space in the undo tablespace.
C. You can perform a Flashback Database operation only within the duration of 1200 seconds.
D. An attempt is made to keep inactive undo for 1200 seconds but transactions may overwrite the undo before that time has elapsed.
Answer: A
Q32. You are about to plug a multi-terabyte non-CDB into an existing multitenant container database (CDB) as a pluggable database (PDB).
The characteristics of the non-CDB are as follows:
Version: Oracle Database 12c Releases 1 64-bit Character set: WE8ISO8859P15 National character set: AL16UTF16 O/S: Oracle Linux 6 64-bit
The characteristics of the CDB are as follows:
Version: Oracle Database 12c Release 1 64-bit Character set: AL32UTF8 O/S: Oracle Linux 6 64-bit
Which technique should you use to minimize down time while plugging this non-CDB into the CDB?
A. Transportable database
B. Transportable tablespace
C. Data Pump full export / import
D. The DBMS_PDB package
E. RMAN
Answer: D Explanation:
Note:
* Generating a Pluggable Database Manifest File for the Non-CDB
Execute the dbms_pdb.describe procedure to generate the manifest file.
exec dbms_pdb.describe(pdb_descr_file=>'/u01/app/oracle/oradata/noncdb/noncdb.xml');
Shut down the noncdb instance to prepare to copy the data files in the next section.
shutdown immediate exit
Q33. Which two partitioned table maintenance operations support asynchronous Global Index Maintenance in Oracle database 12c?
A. ALTER TABLE SPLIT PARTITION
B. ALTER TABLE MERGE PARTITION
C. ALTER TABLE TRUNCATE PARTITION
D. ALTER TABLE ADD PARTITION
E. ALTER TABLE DROP PARTITION
F. ALTER TABLE MOVE PARTITION
Answer: C,E
Explanation: Asynchronous Global Index Maintenance for DROP and TRUNCATE PARTITION This feature enables global index maintenance to be delayed and decoupled from a DROP and TRUNCATE partition without making a global index unusable. Enhancements include faster DROP and TRUNCATE partition operations and the ability to delay index maintenance to off-peak time.
Reference: Oracle Database VLDB and Partitioning Guide 12c
Q34. Which two statements are true about the use of the procedures listed in the v$sysaux_occupants.move_procedure column?
A. The procedure may be used for some components to relocate component data to the SYSAUX tablespace from its current tablespace.
B. The procedure may be used for some components to relocate component data from the SYSAUX tablespace to another tablespace.
C. All the components may be moved into SYSAUX tablespace.
D. All the components may be moved from the SYSAUX tablespace.
Answer: A,B
Q35. The ORCL database is configured to support shared server mode. You want to ensure that a user connecting remotely to the database instance has a one-to-one ratio between client and server processes.
Which connection method guarantees that this requirement is met?
A. connecting by using an external naming method
B. connecting by using the easy connect method
C. creating a service in the database by using the dbms_service.create_service procedure and using this service for creating a local naming service"
D. connecting by using the local naming method with the server = dedicated parameter set in the tnsnames.ora file for the net service
E. connecting by using a directory naming method
Answer: C,E
Q36. The user SCOTT owns the CUST table that is placed in the SALES tablespace. The user SCOTT opens a session and executes commands as follows:
SQL> INSERT INTO cust VALUES(101, 'JACK');
1 row created.
SQL> INSERT INTO cust VALUES(102, 'SMITH');
1 row created.
As a DBA, you execute the following command from another session:
ALTER TABLESPACE sales READ ONLY;
Which statement is true regarding the effect of this command on the transaction in Scott's session?
A. The command fails as a transaction is still pending.
B. The transaction in Scott's session is rolled back and the tablespace becomes readonly.
C. The command waits and the user SCOTT can execute data manipulation language (DML) statements only as part of the current transaction.
D. The command hangs until all transactions on the objects in the tablespace commit or rollback, and then the tablespace is placed in readonly mode.
Answer: D
Q37. Examine the details of the Top 5 Timed Events in the following Automatic Workloads Repository (AWR) report:
What are three possible causes for the latch-related wait events?
A. The size of the shared pool is too small.
B. Cursors are not being shared.
C. A large number COMMITS are being performed.
D. There are frequent logons and logoffs.
E. The buffers are being read into the buffer cache, but some other session is changing the buffers.
Answer: A,B,E
Q38. You are administering a database stored in Automatic Storage Management (ASM). You use RMAN to back up the database and the MD_BACKUP command to back up the ASM metadata regularly. You lost an ASM disk group DG1 due to hardware failure.
In which three ways can you re-create the lost disk group and restore the data?
A. Use the MD_RESTORE command to restore metadata for an existing disk group by passing the existing disk group name as an input parameter and use RMAN to restore the data.
B. Use the MKDG command to restore the disk group with the same configuration as the backed-up disk group and data on the disk group.
C. Use the MD_RESTORE command to restore the disk group with the changed disk group specification, failure group specification, name, and other attributes and use RMAN to restore the data.
D. Use the MKDG command to restore the disk group with the same configuration as the backed-up disk group name and same set of disks and failure group configuration, and use RMAN to restore the data.
E. Use the MD_RESTORE command to restore both the metadata and data for the failed disk group.
F. Use the MKDG command to add a new disk group DG1 with the same or different specifications for failure group and other attributes and use RMAN to restore the data.
Answer: A,C,F
Explanation: AC (not E):
The md_restore command allows you to restore a disk group from the metadata created by
the md_backup command.
md_restore can’t restore data, only metadata.
Q39. You want to flash back a test database by five hours.
You issue this command:
SQL > FLASHBACK DATABASE TO TIMESTAMP (SYSDATE - 5/24);
Which two statements are true about this flashback scenario?
A. The database must have multiplexed redo logs for the flashback to succeed.
B. The database must be MOUNTED for the flashback to succeed.
C. The database must use block change tracking for the flashback to succeed.
D. The database must be opened in restricted mode for the flashback to succeed.
E. The database must be opened with the RESETLOGS option after the flashback is complete.
F. The database must be opened in read-only mode to check if the database has been flashed back to the correct SCN.
Answer: B,E
Q40. A user establishes a connection to a database instance by using an Oracle Net connection. You want to ensure the following:
1. The user account must be locked after five unsuccessful login attempts.
2. Data read per session must be limited for the user.
3- The user cannot have more than three simultaneous sessions.
4. The user must have a maximum of 10 minutes session idle time before being logged off automatically.
How would you accomplish this?
A. by granting a secure application role to the user
B. by implementing Database Resource Manager
C. by using Oracle Label Security options
D. by assigning a profile to the user
Answer: D