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Oracle 1z0-062 Practice testing questions from Youtube
latest updated Oracle 1z0-062 exam questions and answers
Which two files must you copy from the Oracle home of the database that is being upgraded to the new Oracle home for
Oracle Database 12c? (Choose three.)
A. the tnsnames.ora file
B. the sqlnet.ora file
C. the initialization parameter file
D. the password file
E. the listener.ora file
Correct Answer: ABE
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: D
Which four statements are true about the components of the Oracle Scheduler? (Choose four.)
A. A schedule can be specified for a single job only.
B. A scheduler job can point to a chain instead of pointing to a single program object.
C. A job may get started automatically when a window opens.
D. A program and job can be specified as part of a schedule definition.
E. A job is specified as part of a program specification.
F. A program can be used in the definition of multiple jobs.
G. A program and schedule can be specified as part of a job definition.
Correct Answer: BCFG
Identify three scenarios in which you would recommend the use of SQL Performance Analyzer to analyze the impact on the
performance of SQL statements.
A. Change in the Oracle Database version
B. Change in your network infrastructure
C. Change in the hardware configuration of the database server
D. Migration of database storage from non-ASM to ASM storage
E. Database and operating system upgrade
Correct Answer: ACE
Oracle 11g/12c makes further use of SQL tuning sets with the SQL Performance Analyzer, which compares the
performance of the statements in a tuning set before and after a database change. The database change can be as
major or minor as you like, such as:
(E) Database, operating system, or hardware upgrades.
(A, C) Database, operating system, or hardware configuration changes.
Database initialization parameter changes.
Schema changes, such as adding indexes or materialized views.
Refreshing optimizer statistics.
Creating or changing SQL profiles.
You configured the Fast Recovery Area (FRA) for your database. The database instance is in ARCHIVELOG mode. The
default location for the archived redo log files is the FRA.
Which two files are removed automatically if space is required in the FRA as per the retention policy? (Choose two.)
A. Archived redo log files that have multiple copies in a different archive location
B. user-managed backups of data files and control files
C. RMAN backups that are obsolete
D. flashback logs
Correct Answer: CD
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 of COMMITS is being performed.
D. There is frequent logons and logoffs.
E. The buffers are being read into the buffer cache, but some other session is changing the buffers.
Correct Answer: ABD
You Execute the Following command to create a password file in the database server:
$ orapwd file = `+DATA/PROD/orapwprod entries = 5 ignorecase = N format = 12\\’
Which two statements are true about the password file? (Choose two.)
A. It records the usernames and passwords of users when granted the DBA role.
B. It contains the usernames and passwords of users for whom auditing is enabled.
C. Is used by Oracle to authenticate users for remote database administration.
D. It records the usernames and passwords of all users when they are added to the OSDBA or OSOPER operating
E. It supports the SYSBACKUP, SYSDG, and SYSKM system privileges.
Correct Answer: CE
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 read-only.
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
a tablespace is placed in read-only mode.
Correct Answer: B
You want to distribute a set of structured data to your customers who can integrate this data into their existing
databases irrespective of the platform.
Which method provides the fastest way of achieving this?
A. using the DBVERIFY utility
B. using direct-path INSERT SQL statements
C. using SQL*Loader
D. using RMAN transportable tablespace operation
Correct Answer: D
You are planning the creation of a new multitenant container database (CDB) and want to store the ROOT and SEED
container data files in separate directories.
You plan to create the database using SQL statements.
Which three techniques can you use to achieve this? (Choose three.)
A. Use Oracle Managed Files (OMF).
B. Specify the SEED FILE_NAME_CONVERT clause.
C. Specify the PDB_FILE_NAME_CONVERT initialization parameter.
D. Specify the DB_FILE_NAMECONVERT initialization parameter.
E. Specify all files in the CREATE DATABASE statement without using Oracle managed Files (OMF).
Correct Answer: ABC
You must specify the names and locations of the seed\\’s files in one of the following ways:
(A) Oracle Managed Files
(B) The SEED FILE_NAME_CONVERT Clause
(C) The PDB_FILE_NAME_CONVERT Initialization Parameter
In which three situations can you use threshold server-generated alerts to help diagnose and fix problems? (Choose
A. when free space in a locally managed tablespace falls below a specified percentage
B. when the number of logons per second exceeds a specific value
C. when a resumable statement is suspended
D. when the total number of locked user account exceeds a specific value
E. when the total number of logons exceeds a specific value
F. when free space in a dictionary managed tablespace falls below a specified percentage
Correct Answer: ABC
In your production database, data manipulation language (DML) operations are executed on the SALES table.
You have noticed some dubious values in the SALES table during the last few days. You are able to track users, actions
taken, and the time of the action for this particular period but the changes in data are not tracked. You decide to keep
track of both the old data and new data in the table long with the user information.
What action would you take to achieve this task?
A. Apply fine-grained auditing.
B. Implement value-based auditing.
C. Impose standard database auditing to audit object privileges.
D. Impose standard database auditing to audit SQL statements.
Correct Answer: B
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:
Mount the CDB.
Close all the PDBs.
Open the database.
Apply the archive redo logs.
Restore the data file.
Take the SYSAUX tablespace offline.
Place the SYSAUX tablespace online.
Open all the PDBs with RESETLOGS.
Open the database with RESETLOGS.
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
RMAN> ALTER TABLESPACE sysaux OFFLINE IMMEDIATE;
RMAN> RESTORE TABLESPACE sysaux;
RMAN> RECOVER TABLESPACE sysaux;
RMAN> ALTER TABLESPACE sysaux ONLINE;
While evaluating the 12c beta3 I was not able to do the recover while testing “all PDB files lost”.
Cannot close the PDB as the system datafile was missing…
So the only option to recover was:
Shutdown cdb (10)
startup mount; (1)
restore pluggable database
recover pluggable database
alter database open;
alter pluggable database name open;
Oracle support says: You should be able to close the PDB and restore/recover the system tablespace of PDB.
Inconsistent backups are usually created by taking online database backups. You can also make an inconsistent
backup by backing up data files while a database is closed, either:
/ Immediately after the crash of an Oracle instance (or, in an Oracle RAC configuration, all instances)
/ After shutting down the database using SHUTDOWN ABORT
Inconsistent backups are only useful if the database is in ARCHIVELOG mode and all archived redo logs created since
the backup is available.
Open the database with the RESETLOGS option after finishing recovery: SQL> ALTER DATABASE OPEN
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