Online Access Free Oracle.1z0-063.v2022-02-06.q218 Practice Test (Page 35)

1z0-063 Exam Question 166

Examine the commands executed in CDB$ROOT of your multitenant container database (CDB) that has multiple pluggable databases (PDB):

Which statement is true about granting the select privilege on the DBA_users view to the c##ROLE1 role?

A.The command fails because container is not set to current.

B.The command succeeds and the common user c##admin can create a session in cdb$root and all the PDBs, but can only query the dba_users view in cdb$root.

C.The command succeeds and the common user c##admin can create a session and query the DBA_users view only in cdb$root.

D.The command succeeds and the common user c##admin can create a session and query the DBA_users view in cdb$root and all the PDBs.

E.The command fails and gives an error because object privileges cannot be granted to a common user.

1z0-063 Exam Question 167

Which two statements are true about roles in multitenant container databases (CDBs)?

A.Local roles can be granted to local and common users.

B.A common role can be granted only to a common user.

C.A common user can create a local role by default in any pluggable database (PDB) that is plugged in to a CDB.

D.A common role can be granted only system privileges.

E.The root container can have both local and common roles.

F.A local role can be assigned to a common role in a PDB.

1z0-063 Exam Question 168

Which two statements are true regarding Oracle Data Pump?

A.EXPDP and IMPDP are the client components of Oracle Data Pump.

B.DBMS_DATAPUMP PL/SQL packages can be used independently of the Data Pump clients.

C.Oracle Data Pump export and import operations can be performed only by users with the SYSDBA privilege.

D.Oracle Data Pump imports can be done from the export files generated in the Original Export Utility.

E.EXPDP and IMPDP use the procedures provided by DBMS_METADATA to execute export and import commands.

1z0-063 Exam Question 169

Examine the parameters for your database instance:
NAMETYPEVALUE
- -----------------------------------------------
optimizer_adaptive_reporting_onlybooleanFALSE
optimizer_capture_sql_plan_baselinesbooleanFALSE
optimizer_dynamic_samplinginteger2
optimizer_features_enablestring12.1.0.1
Which three statements are true about the process of automatic optimization by using statistics 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.

1z0-063 Exam Question 170

In a database supporting an OLTP workload, tables are frequently updated on both key and non- keycolumns.
Reports are also generated by joining multiple tables.
Which table organization or type would provide the best performance for this hybrid workload?

A.hash clustered table

B.global temporary table

C.heap table with a primary key index

D.external table

E.index clustered table

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1z0-063 Exam Question 166

1z0-063 Exam Question 167

1z0-063 Exam Question 168

1z0-063 Exam Question 169

1z0-063 Exam Question 170

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