Which three statements are true about adaptive SQL plan management、

试卷相关题目

• 1You notice a performance change in your production Oracle database and you want to know which change has made this performance difference.You generate the Compare Period Automatic Database Diagnostic Monitor (ADDM) reportto further investigation.Which three findings would you get from the report、

  A.It detects any configuration change that caused a performance difference in both time periods.

  B.It identifies any workload change that caused a performance difference in both time periods.

  C.It detects the top wait events causing performance degradation.

  D.It shows the resource usage for CPU, memory, and I/O in both time periods.

  E.It shows the difference in the size of memory pools in both time periods.

  F.It gives information about statistics collection in both time periods.

  开始考试点击查看答案
• 2An administrator account is granted the CREATE SESSION and SET CONTAINER systemprivileges.A multitenant container database (CDB) instant has the following parameter set:THREADED_EXECUTION = FALSEWhich four statements are true about this administrator establishing connections to root in a CDB that has been opened in read only mode、

  A.You can conned as a common user by using the connect statement.

  B.You can connect as a local user by using the connect statement.

  C.You can connect by using easy connect.

  D.You can connect by using OS authentication.

  E.You can connect by using a Net Service name.

  F.You can connect as a local user by using the SET CONTAINER statement

  开始考试点击查看答案
• 3Your database supports an online transaction processing (OLTP) application. Theapplication is undergoing some major schema changes, such as addition of new indexes and materialized views. You want to check the impact of these changes on workloadperformance.What should you use to achieve this、

  A.Database replay

  B.SQL Tuning Advisor

  C.SQL Access Advisor

  D.SQL Performance Analyzer

  E.Automatic Workload Repository compare reports

  开始考试点击查看答案
• 4You 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-bitThe 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-bitWhich 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

  开始考试点击查看答案
• 5You 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、

  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).

  开始考试点击查看答案
• 6You create a new pluggable database, HR_PDB, from the seed database. Which threetablespaces are created by default in HR_PDB、

  A.SYSTEM

  B.SYSAUX

  C.EXAMPLE

  D.UNDO

  E.TEMP

  F.USERS

  开始考试点击查看答案
• 7Which two statements are true about variable extent size support for large ASM files、

  A.The metadata used to track extents in SGA is reduced.

  B.Rebalance operations are completed faster than with a fixed extent size

  C.An ASM Instance automatically allocates an appropriate extent size.

  D.B.Rebalance operations are completed faster than with a fixed extent sizeC.An ASM Instance automatically allocates an appropriate extent siz

  E.D.Resync operations are completed faster when a disk comes online after being taken offline.E.Performance improves in a stretch cluster configuration by reading from a local copy of an extent.

  开始考试点击查看答案
• 8You executed a DROP USER CASCADE on an Oracle 11g release 1 database andimmediately realized that you forgot to copy the OC

  A.EXAM_RESULTS table to the OCP schema.The RECYCLE_BIN enabled before the DROP USER was executed and the OCP user has been granted the FLASHBACK ANY TABLE system privilege.What is the quickest way to recover the contents of the OCA.EXAM_RESULTS table to the OCP schema、A.Execute FLASHBACK TABLE OCA.EXAM_RESULTS TO BEFORE DROP RENAME TO OCP.EXAM_RESULTS; connected as SYSTEM.

  B.Recover the table using traditional Tablespace Point In Time Recovery.

  C.Recover the table using Automated Tablespace Point In Time Recovery.

  D.Recovery the table using Database Point In Time Recovery.

  E.Execute FLASHBACK TABLE OCA.EXAM_RESULTS TO BEFORE DROP RENAME TO EXAM_RESULTS; connected as the OCP user.

  开始考试点击查看答案
• 9In your multitenant container database (CDB) containing pluggable database (PDBs), the HR user executes the following commands to create and grant privileges on a procedure:CREATE OR REPLACE PROCEDURE create_test_v (v_emp_id NUMBER, v_ename VARCHAR2, v_SALARY NUMBER, v_dept_id NUMBER)BEGININSERT INTO hr.test VALUES (V_emp_id, V_ename, V_salary, V_dept_id);END;GRANT EXECUTE ON CREATE_TEST TO john, jim, smith, king;How can you prevent users having the EXECUTE privilege on the CREATE_TESTprocedure from inserting values into tables on which they do not have any privileges、

  A.Create the CREATE_TEST procedure with definer’s rights.

  B.Grant the EXECUTE privilege to users with GRANT OPTION on the CREATE_TESTprocedure.

  C.Create the CREATE_TEST procedure with invoker’s rights.

  D.Create the CREATE_TEST procedure as part of a package and grant users the EXECUTE privilege the packag

  开始考试点击查看答案
• 10You created a new database using the "create database" statement without specifying the "ENABLE PLUGGABLE" clause.What are two effects of not using the "ENABLE PLUGGABLE database" clause、

  A.The database is created as a non-CDB and can never contain a PD

  B.B.The database is treated as a PDB and must be plugged into an existing multitenant container database (CDB).

  C.The database is created as a non-CDB and can never be plugged into a CDB.

  D.The database is created as a non-CDB but can be plugged into an existing CDB.

  E.The database is created as a non-CDB but will become a CDB whenever the first PDB is plugged in.

  开始考试点击查看答案