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Q71. You notice a performance change in your production Oracle 12c database. You want to know which change caused this performance difference.

Which method or feature should you use?

A. Compare Period ADDM report

B. AWR Compare Period report

C. Active Session History (ASH) report

D. Taking a new snapshot and comparing it with a preserved snapshot

Answer: B


Q72. Which three are direct benefits of the multiprocess, multithreaded architecture of Oracle Database 12c when it is enabled?

A. Reduced logical I/O

B. Reduced virtual memory utilization

C. Improved parallel Execution performance

D. Improved Serial Execution performance

E. Reduced physical I/O

F. Reduced CPU utilization

Answer: BCF


Q73. A redaction policy was added to the SAL column of the SCOTT.EMP table:

All users have their default set of system privileges. 

For which three situations will data not be redacted?

A. SYS sessions, regardless of the roles that are set in the session

B. SYSTEM sessions, regardless of the roles that are set in the session

C. SCOTT sessions, only if the MGR role is set in the session

D. SCOTT sessions, only if the MGR role is granted to SCOTT

E. SCOTT sessions, because he is the owner of the table

F. SYSTEM session, only if the MGR role is set in the session

Answer: ABD


Q74. 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.

Answer: BDF


Q75. What is the effect of specifying the "ENABLE PLUGGABLE DATABASE" clause in a "CREATE DATABASE” statement?

A. It will create a multitenant container database (CDB) with only the root opened. 

B. It will create a CDB with root opened and seed read only.

C. It will create a CDB with root and seed opened and one PDB mounted. 

D. It will create a CDB that must be plugged into an existing CDB. 

E. It will create a CDB with root opened and seed mounted. 

Answer: B


Q76. You wish to enable an audit policy for all database users, except SYS, SYSTEM, and SCOTT.

You issue the following statements:

SQL> AUDIT POLICY ORA_DATABASE_PARAMETER EXCEPT SYS; 

SQL> AUDIT POLICY ORA_DATABASE_PARAMETER EXCEPT SYSTEM; 

SQL> AUDIT POLICY ORA_DATABASE_PARAMETER EXCEPT SCOTT;

For which database users is the audit policy now active?

A. All users except SYS

B. All users except SCOTT

C. All users except sys and SCOTT

D. All users except sys, system, and SCOTT

Answer: B


Q77. Which two are true concerning a multitenant container database with three pluggable database?

A. All administration tasks must be done to a specific pluggable database.

B. The pluggable databases increase patching time.

C. The pluggable databases reduce administration effort.

D. The pluggable databases are patched together.

E. Pluggable databases are only used for database consolidation.

Answer: CE


Q78. You plan to migrate your database from a File system to Automata Storage Management (ASM) on same platform.

Which two methods or commands would you use to accomplish this task?

A. RMAN CONVERT command

B. Data Pump Export and import

C. Conventional Export and Import

D. The BACKUP AS COPY DATABASE . . . command of RMAN

E. DBMS_FILE_TRANSFER with transportable tablespace

Answer: AD


Q79. Your database has the SRV1 service configured for an application that runs on middle-tier application server. The application has multiple modules. You enable tracing at the service level by executing the following command:

SQL > exec DBMS_MONITOR.SERV_MOD_ACT_TRACE_ENABLE (‘SRV1’);

The possible outcome and actions to aggregate the trace files are as follows:

1.The command fails because a module name is not specified. 

2.A trace file is created for each session that is running the SRV1 service.

3.An aggregated trace file is created for all the sessions that are running the SRV1 service.

4.The trace files may be aggregated by using the trcess utility.

5.The trace files be aggregated by using the tkprof utility.

Identify the correct outcome and the step to aggregate by using tkprof utility?

A. 1

B. 2 and 4

C. 2 and 5

D. 3 and 4

E. 3 and 5

Answer: B


Q80. You are about to plug a multi-terabyte non-CDB into an existing multitenant container database (CDB).

The characteristics of the non-CDB are as follows:

✑ Version: Oracle Database 11g Release 2 (11.2.0.2.0) 64-bit

✑ Character set: AL32UTF8

✑ 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

✑ National character set: AL16UTF16

✑ 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: B