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QUESTION 1
You enabled an audit policy by issuing the following statements:
SQLandgt; AUDIT POLICY ORA_DATABASE_PARAMETER BY SCOTT;
SQLandgt; AUDIT POLICY ORA_DATABASE_PARAMETER BY SYS, SYSTEM;
For which database users and for which executions is the audit policy now active? Select two.
A. SYS, SYSTEM
B. SCOTT
C. Only for successful executions
D. Only for failed executions
E. Both successful and failed executions
1Z0-062 exam Correct Answer: AE
Explanation
Explanation/Reference:
* The ORA_DATABASE_PARAMETER policy audits commonly used Oracle Database parameter settings. By default, this policy is not enabled.
QUESTION 2
Your multitenant container (CDB) containing three pluggable databases (PDBs) is running in ARCHIVELOG mode. You find that the SYSAUX tablespace is corrupted in the root container. The steps to recover the tablespace are as follows:
1.Mount the CDB.
2.Close all the PDBs.
3.Open the database.
4.Apply the archive redo logs.
5.Restore the data file.
6.Take the SYSAUX tablespace offline.
7.Place the SYSAUX tablespace online.
8.Open all the PDBs with RESETLOGS.
9.Open the database with RESETLOGS.
10.Execute the command SHUTDOWN ABORT.
Which option identifies the correct sequence to recover the SYSAUX tablespace?
A. 6, 5, 4, 7
B. 10, 1, 2, 5, 8
C. 10, 1, 2, 5, 4, 9, 8
D. 10, 1, 5, 8, 10
Correct Answer: A
Explanation
Explanation/Reference:
RMANandgt; ALTER TABLESPACE sysaux OFFLINE IMMEDIATE;
RMANandgt; RESTORE TABLESPACE sysaux;
RMANandgt; RECOVER TABLESPACE sysaux;
RMANandgt; ALTER TABLESPACE s
QUESTION 3
Identify two situations in which the alert log file is updated.
A. Running a query on a table returns ORA-600: Internal Error.
B. Inserting a value into a table returns ORA-01722: invalid number.
C. Creating a table returns ORA-00955: name us already in used by an existing objects.
D. Inserting a value into a table returns ORA-00001: unique constraint (SYS.OK_TECHP) violated.
E. Rebuilding an index using ALTER INDEX . . . REBUILD fails with an ORA-01578: ORACLE data block corrupted (file
# 14, block # 50) error.
1Z0-062 dumps Correct Answer: AE
Explanation
Explanation/Reference:
The alert log is a chronological log of messages and errors, and includes the following items:
*All internal errors (ORA-600), block corruption errors (ORA-1578), and deadl
QUESTION 4
Which statement is true about Enterprise Manager (EM) express in Oracle Database 12c?
A. By default, EM express is available for a database after database creation.
B. You can use EM express to manage multiple databases running on the same server.
C. You can perform basic administrative tasks for pluggable databases by using the EM express interface.
D. You cannot start up or shut down a database Instance by using EM express.
E. You can create and configure pluggable databases by using EM express.
Correct Answer: A
Explanation
Explanation/Reference:
EM Express is built inside the database.
Note:
QUESTION 5
In your multitenant container database (CDB) containing same pluggable databases (PDBs), you execute the following commands in the root container:
Which two statements are true?
A. The C # # ROLE1 role is created in the root database and all the PDBs.
B. The C # # ROLE1 role is created only in the root database because the container clause is not used.
C. Privileges are granted to the C##A_ADMIN user only in the root database.
D. Privileges are granted to the C##A_ADMIN user in the root database and all PDBs.
E. The statement for granting a role to a user fails because the CONTAINER clause is not used.
1Z0-062 pdf Correct Answer: AC
Explanation
Explanation/Reference:
QUESTION 6
Which two statements correctly describe the relationship between data files and logical database structures?
A. A segment cannot span data files.
B. A data file can belong to only one tablespace.
C. An extent cannot span data files.
D. The size of an Oracle data block in a data file should be the same as the size of an OS block.
Correct Answer: BC
Explanation
Explanation/Reference:
QUESTION 7
You want to capture column group usage and gather extended statistics for better cardinality estimates for the CUSTOMERS table in the SH schema.
Examine the following steps:
1.Issue the SELECT DBMS_STATS.CREATE_EXTENDED_STATS (`SH\’, `CUSTOMERS\’) FROM dual statement.
2.Execute the DBMS_STATS.SEED_COL_USAGE (null, `SH\’, 500) procedure.
3.Execute the required queries on the CUSTOMERS table.
4.Issue the SELECT DBMS_STATS.REPORT_COL_USAGE (`SH\’, `CUSTOMERS\’) FROM dual statement.
Identify the correct sequence of steps.
A. 3, 2, 1, 4
B. 2, 3, 4, 1
C. 4, 1, 3, 2
D. 3, 2, 4, 1
1Z0-062 vce Correct Answer: B
Explanation
Explanation/Reference:
Step 1 (2). Seed column usage Oracle must observe a representative workload, in order to determine the appropriate column groups. Using the new procedure DBMS_STATS.SEED_COL_USAGE,
QUESTION 8
Which two statements are true about the RMAN validate database command?
A. It checks the database for intrablock corruptions.
B. It can detect corrupt pfiles.
C. It can detect corrupt spfiles.
D. It checks the database for interblock corruptions.
E. It can detect corrupt block change tracking files.
Correct Answer: AC
Explanation
Explanation/Reference:
QUESTION 9
Examine the following commands for redefining a table with Virtual Private Database (VPD) policies:
Which two statements are true about redefining the table?
A. All the triggers for the table are disabled without changing any of the column names or column types in the table.
B. The primary key constraint on the EMPLOYEES table is disabled during redefinition.
C. VPD policies are copied from the original table to the new table during online redefinition.
D. You must copy the VPD policies manually from the original table to the new table during online redefinition.
1Z0-062 exam Correct Answer: BC
Explanation
Explanation/Reference:
QUESTION 10
In a recent Automatic Workload Repository (AWR) report for your database, you notice a high number of buffer busy waits. The database consists of locally managed tablespaces with free list managed segments. On further investigation, you find that buffer busy waits is caused by contention on data blocks. Which option would you consider first to decrease the wait event immediately?
A. Decreasing PCTUSED
B. Decreasing PCTFREE
C. Increasing the number of DBWN process
D. Using Automatic Segment Space Management (ASSM)
E. Increasing db_buffer_cache based on the V$DB_CACHE_ADVICE recommendation
Correct Answer: D
Explanation
Explanation/Reference:
Automatic segment space management (ASSM) is a simpler and more efficient way * of managing space within a segment. It completely eliminates any need to specify and tune the
QUESTION 11
Examine the parameters for your database instance: Which three statements are true about the process of automatic optimization by using cardinality feedback?
A. The optimizer automatically changes a plan during subsequent execution of a SQL statement if there is a huge difference in optimizer estimates and execution statistics.
B. The optimizer can re optimize a query only once using cardinality feedback.
C. The optimizer enables monitoring for cardinality feedback after the first execution of a query.
D. The optimizer does not monitor cardinality feedback if dynamic sampling and multicolumn statistics are enabled.
E. After the optimizer identifies a query as a re-optimization candidate, statistics collected by the collectors are submitted to the optimizer.
1Z0-062 dumps Correct Answer: ACD
Explanation
Explanation/Reference:
C: During the first execution of a SQL statement, an execution plan is generated as usual.
D: if multi-column statistics are not present for the relevant combination of co
QUESTION 12
To implement Automatic Management (AMM), you set the following parameters:
When you try to start the database instance with these parameter settings, you receive the following error message: SQL andgt; startup ORA-00824: cannot set SGA_TARGET or MEMORY_TARGET due to existing internal settings, see alert log for more information. Identify the reason the instance failed to start.
A. The PGA_AGGREGATE_TARGET parameter is set to zero.
B. The STATISTICS_LEVEL parameter is set to BASIC.
C. Both the SGA_TARGET and MEMORY_TARGET parameters are set.
D. The SGA_MAX_SIZE and SGA_TARGET parameter values are not equal.
Correct Answer: B
Explanation
Explanation/Reference:
Example: SQLandgt; startup force ORA-00824: cannot set SGA_TARGET or MEMORY_TARGET due to existing internal settings ORA- 00848: STATISTICS_LEVEL cannot be set to BASIC with SGA_TA
QUESTION 13
You performed an incremental level 0 backup of a database:
RMAN andgt; BACKUP INCREMENTAL LEVEL 0 DATABASE;
To enable block change tracking after the incremental level 0 backup, you issued this command:
SQL andgt; ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE ` /mydir/rman_change_track.f\’;
To perform an incremental level 1 cumulative backup, you issued this command:
RMANandgt; BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE;
Which three statements are true?
A. Backup change tracking will sometimes reduce I/O performed during cumulative incremental backups.
B. The change tracking file must always be backed up when you perform a full database backup.
C. Block change tracking will always reduce I/O performed during cumulative incremental backups.
D. More than one database block may be read by an incremental backup for a change made to a single block.
E. The incremental level 1 backup that immediately follows the enabling of block change tracking will not read the
change tracking file to discover changed blocks.
1Z0-062 pdf Correct Answer: ADE
Explanation
Explanation/Reference:
A: In a cumulative level 1 backup, RMAN backs up all the blocks used since the most recent level 0 incremental backup.
E: Oracle Block Change Tracking Once enabled; this n
QUESTION 14
Examine the query and its output: What might have caused three of the alerts to disappear?
A. The threshold alerts were cleared and transferred to d0A_alert_history.
B. An Automatic Workload Repository (AWR) snapshot was taken before the execution of the second
C. An Automatic Database Diagnostic Monitor (ADOM) report was generated before the execution of the second query.
D. The database instance was restarted before the execution of the second query.
Correct Answer: D
Explanation
Explanation/Reference:
QUESTION 15
In your Database, the TBS PERCENT USED parameter is set to 60 and the TBS PERCENT FREE parameter is set to 20. Which two storage-tiering actions might be automated when using information Lifecycle Management (ILM) to automate data movement?
A. The movement of all segments to a target tablespace with a higher degree of compression, on a different storage tier, when the source tablespace exceeds TBS PERCENT USED
B. Setting the target tablespace to read-only
C. The movement of some segments to a target tablespace with a higher degree of compression, on a different storage tier, when the source tablespace exceeds TBS PERCENT USED
D. Setting the target tablespace offline
E. The movement of some blocks to a target tablespace with a lower degree of compression, on a different storage tier, when the source tablespace exceeds TBS PERCENT USED
1Z0-062 vce Correct Answer: BC
Explanation
Explanation/Reference:
The value for TBS_PERCENT_USED specifies the percentage of the tablespace quota when a tablespace is considered full. The value for TBS_PERCENT_FREE specifies the targeted free pe
QUESTION 16
In your database, you want to ensure that idle sessions that are blocking active are automatically terminated after a specified period of time. How would you accomplish this?
A. Setting a metric threshold
B. Implementing Database Resource Manager
C. Enabling resumable timeout for user sessions
D. Decreasing the value of the IDLE_TIME resource limit in the default profile
Correct Answer: D
Explanation
Explanation/Reference:
An Oracle session is sniped when you set the idle_time parameter to disconnect inactive sessions.
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