Oracle Oracle Database 1Z0-060 Questions & Answers

• Question 71:

  Your multitenant container database has three pluggable databases (PDBs): PDB1, PDB2, and PDB3.

  Which two RMAN commands may be used to back up only the PDB1 pluggable database? (Choose two.)

  A. BACKUP PLUGGABLE DATABASE PDB1 while connected to the ROOT container

  B. BACKUP PLUGGABLE DATABASE PDB1 while connected to the PDB1 container

  C. BACKUP DATABASE while connected to the PDB1 container

  D. BACKUP DATABASE while connected to the ROOT container

  E. BACKUP PLUGGABLE DATABASE PDB1 while connected to PDB2

  Correct Answer: AC

  To perform operations on a single PDB, you can connect as target either to the root or directly to the PDB.

  *

  (A) If you connect to the root, you must use the PLUGGABLE DATABASE syntax in your RMAN commands. For example, to back up a PDB, you use the BACKUP PLUGGABLE DATABASE command.

  *

  (C)If instead you connect directly to a PDB, you can use the same commands that you would use when connecting to a non-CDB. For example, to back up a PDB, you would use the BACKUP DATABASE command.

• Question 72:

  Identify three benefits of Unified Auditing.

  A. Decreased use of storage to store audit trail rows in the database.

  B. It improves overall auditing performance.

  C. It guarantees zero-loss auditing.

  D. The audit trail cannot be easily modified because it is read-only.

  E. It automatically audits Recovery Manager (RMAN) events.

  Correct Answer: BDE

  https://blogs.oracle.com/imc/entry/oracle_database_12c_new_unified

• Question 73:

  You upgraded from a previous Oracle database version to Oracle Database version to Oracle Database 12c. Your database supports a mixed workload. During the day, lots of insert, update, and delete operations are performed. At night, Extract, Transform, Load (ETL) and batch reporting jobs are run. The ETL jobs perform certain database operations using two or more concurrent sessions. After the upgrade, you notice that the performance of ETL jobs has degraded. To ascertain the cause of performance degradation, you want to collect basic statistics such as the level of parallelism, total database time, and the number of I/O requests for the ETL jobs.

  How do you accomplish this?

  A. Examine the Active Session History (ASH) reports for the time period of the ETL or batch reporting runs.

  B. Enable SQL tracing for the queries in the ETL and batch reporting queries and gather diagnostic data from the trace file.

  C. Enable real-time SQL monitoring for ETL jobs and gather diagnostic data from the V$SQL_MONITOR view.

  D. Enable real-time database operation monitoring using the DBMS_SQL_MONITOR.BEGIN_OPERATION function, and then use the DBMS_SQL_MONITOR.REPORT_SQL_MONITOR function to view the required information.

  Correct Answer: D

  * Monitoring database operations Real-Time Database Operations Monitoring enables you to monitor long running database tasks such as batch jobs, scheduler jobs, and Extraction, Transformation, and Loading (ETL) jobs as a composite business operation. This feature tracks the progress of SQL and PL/SQL queries associated with the business operation being monitored. As a DBA or developer, you can define business operations for monitoring by explicitly specifying the start and end of the operation or implicitly with tags that identify the operation.

• Question 74:

  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

  O12c is integrated in database don't have his own agent like in O11G then you cannot start up or shut down a database.

• Question 75:

  Examine the following command:

  ALTER SYSTEM SET enable_ddl_logging = TRUE;

  Which statement is true?

  A. Only the data definition language (DDL) commands that resulted in errors are logged in the alert log file.

  B. All DDL commands are logged in the alert log file.

  C. All DDL commands are logged in a different log file that contains DDL statements and their execution dates.

  D. Only DDL commands that resulted in the creation of new segments are logged.

  E. All DDL commands are logged in XML format in the alert directory under the Automatic Diagnostic Repository (ADR) home.

  Correct Answer: C

  The log files are created only in $ADR_HOME/log in alert log only alter system is catched.Sun Mar 30 23:30:04 2014ALTER SYSTEM SET enable_ddl_logging=TRUE SCOPE=BOTH;Sun Mar 30 23:32:41 2014ALTER SYSTEM SET enable_ddl_logging=TRUE SCOPE=BOTH;Sun Mar 30

  23:39:35 2014ALTER SYSTEM SET enable_ddl_logging=FALSE SCOPE=BOTH;[oracle@ovs trace]$

  only in diag/rdbms/.../../log/ two files are capturing this. The xml file is capturing full details and text file

  having only the commands.

  [oracle@ovs log]$ pwd/oraclebase/diag/rdbms/ora12c1/ora12c1/log[oracle@ovs log]$ cat ddl/*

  create table testing2(a number)

  create table testing3( aa number)

  [oracle@ovs log]$ cat ddl_ora12c1.logSun Mar 30 23:33:26 2014diag_adl:create table testing2(a number)

  diag_adl:create table testing3( aa number)

  Reference: https://docs.oracle.com/database/121/REFRN/GUID-6FBA6147-D545-4E7D-94F0A97EC1C721AE.htm#REFRN10302

• Question 76:

  In which two scenarios do you use SQL* Loader to load data?

  A. Transform the data while it is being loaded into the database.

  B. Use transparent parallel processing without having to split the external data first.

  C. Load data into multiple tables during the same load statement.

  D. Generate unique sequential key values in specified columns.

  Correct Answer: CD

  http://docs.oracle.com/cd/B28359_01/server.111/b28319/ldr_concepts.htm

• Question 77:

  You are connected to a pluggable database (PDB) as a common user with DBA privileges. The STATISTICS_LEVEL parameter is PDB_MODIFIABLE. You execute the following: SQL > ALTER SYSTEM SET STATISTICS_LEVEL = ALL SID = `*' SCOPE = SPFILE; Which is true about the result of this command?

  A. The STATISTICS_LEVEL parameter is set to all whenever this PDB is re-opened.

  B. The STATISTICS_LEVEL parameter is set to ALL whenever any PDB is reopened.

  C. The STATISTICS_LEVEL parameter is set to all whenever the multitenant container database (CDB) is restarted.

  D. Nothing happens; because there is no SPFILE for each PDB, the statement is ignored.

  Correct Answer: A

  http://docs.oracle.com/database/121/ADMIN/cdb_pdb_admin.htm#ADMIN14017

• Question 78:

  Which two are prerequisites for performing a flashback transaction? (Choose two.)

  A. Flashback Database must be enabled.

  B. Undo retention guarantee for the database must be configured.

  C. EXECUTE privilege on the DBMS_FLASHBACK package must be granted to the user flashing back transaction.

  D. Supplemental logging must be enabled.

  E. Recycle bin must be enabled for the database.

  F. Block change tracking must be enabled for the database.

  Correct Answer: CD

  To configure your database for the Flashback Transaction feature, you or your database administrator must:

  With the database mounted but not open, enable ARCHIVELOG:

  ALTER DATABASE ARCHIVELOG;

  Open at least one archive log:

  ALTER SYSTEM ARCHIVE LOG CURRENT;

  If not done, enable minimal and primary key supplemental logging:

  ALTER DATABASE ADD SUPPLEMENTAL LOG DATA;

  ALTER DATABASE ADD SUPPLEMENTAL LOG DATA (PRIMARY KEY) COLUMNS;

  If you want to track foreign key dependencies, enable foreign key supplemental logging:

  ALTER DATABASE ADD SUPPLEMENTAL LOG DATA (FOREIGN KEY) COLUMNS;

  References: http://docs.oracle.com/cd/E11882_01/appdev.112/e41502/adfns_flashback.htm#ADFNS611

• Question 79:

  Which three statements are true about SQL plan directives?

  A. They are tied to a specific statement or SQL ID.

  B. They instruct the maintenance job to collect missing statistics or perform dynamic sampling to generate a more optimal plan.

  C. They are used to gather only missing statistics.

  D. They are created for a query expression where statistics are missing or the cardinality estimates by the optimizer are incorrect.

  E. They instruct the optimizer to create only column group statistics.

  F. Improve plan accuracy by persisting both compilation and execution statistics in the SYSAUX tablespace.

  Correct Answer: BDF

• Question 80:

  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.

  Correct Answer: BE

  http://docs.oracle.com/cd/B28359_01/backup.111/b28270/rcmflash.htm#BRADV80055