You notice that the elapsed time for an important database scheduler Job is unacceptably long.The job belongs to a scheduler job class and window.Which two actions would reduce the job's elapsed time、

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• 1Which three statements are true concerning the multitenant architecture、

  A.Each pluggable database (PDB) has its own set of background processes.

  B.A PDB can have a private temp tablespace.

  C.PDBs can share the sysaux tablespace.

  D.Log switches occur only at the multitenant container database (CDB) level.

  E.C.PDBs can share the sysaux tablespace.D.Log switches occur only at the multitenant container database (CDB) level.E.Different PDBs can have different default block sizes.

  G.PDBs share a common system tablespace.

  H.A.Each pluggable database (PDB) has its own set of background processes.B.A PDB can have a private temp tablespace.C.PDBs can share the sysaux tablespace.D.Log switches occur only at the multitenant container database (CDB) level.E.Different PDBs can have different default block sizes.F.PDBs share a common system tablespace.G.Instance recovery is always performed at the CDB level.

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• 2You use a recovery catalog for maintaining your database backups.You execute the following command:$rman TARGET / CATALOG rman / cat@catdbRMAN > BACKUP VALIDATE DATABASE ARCHIVELOG ALL;Which two statements are true、

  A.Corrupted blocks, if any, are repaired.

  B.Checks are performed for physical corruptions.

  C.Checks are performed for logical corruptions.

  D.B.Checks are performed for physical corruptions.C.Checks are performed for logical corruptions.D.Checks are performed to confirm whether all database files exist in correct locations

  E.Backup sets containing both data files and archive logs are created.

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• 3Which two statements are true concerning the Resource Manager plans for individualpluggable databases (PDB plans) in a multitenant container database (CDB)、

  A.If no PDB plan is enabled for a pluggable database, then all sessions for that PDB are treated to an equal degree of the resource share of that PD

  B.B.In a PDB plan, subplans may be used with up to eight consumer groups.

  C.If a PDB plan is enabled for a pluggable database, then resources are allocated to consumer groups across all PDBs in the CDB.

  D.If no PDB plan is enabled for a pluggable database, then the PDB share in the CDB plan is dynamically calculated.

  E.If a PDB plan is enabled for a pluggable database, then resources are allocated to consumer groups based on the shares provided to the PDB in the CDB plan and the shares provided to the consumer groups in the PDB plan.

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• 4In your multitenant container database (CDB) containing pluggable database (PDBs), you granted the CREATE TABLE privilege to the common user C # # A_ADMIN in root and all PDBs. You execute the following command from the root container:SQL > REVOKE create table FROM C # # A_ADMIN;What is the result、

  A.It executes successfully and the CREATE TABLE privilege is revoked from C # # A_ADMIN in root only.

  B.It fails and reports an error because the CONTAINER=ALL clause is not used.

  C.It excludes successfully and the CREATE TABLE privilege is revoked from C # # A_ADMIN in root and all PDBs.

  D.C.It excludes successfully and the CREATE TABLE privilege is revoked from C # # A_ADMIN in root and all PDBs.D.It fails and reports an error because the CONTAINER=CURRENT clause is not used.

  E.It executes successfully and the CREATE TABLE privilege is revoked from C # #A_ADMIN in all PDBs.

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• 5Examine the following parameters for a database instance:MEMORY_MAX_TARGET=0MEMORY_TARGET=0SGA_TARGET=0PGA_AGGREGATE_TARGET=500mWhich three initialization parameters are not controlled by Automatic Shared Memory Management (ASMM)、

  A.LOG_BUFFER

  B.SORT_AREA_SIZE

  C.JAVA_POOL_SIZE

  D.STREAMS_POOL_SIZE

  E.DB_16K_CACHE_SZIE

  F.DB_KEEP_CACHE_SIZE

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• 6You 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

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• 7You run a script that completes successfully using SQL*Plus that performs these actions:1. Creates a multitenant container database (CDB)2. Plugs in three pluggable databases (PDBs)3. Shuts down the CDB instance4. Starts up the CDB instance using STARTUP OPEN READ WRITEWhich two statements are true about the outcome after running the script、

  A.The seed will be in mount state.

  B.The seed will be opened read-only.

  C.The seed will be opened read/write.

  D.The other PDBs will be in mount stat

  E.B.The seed will be opened read-only.C.The seed will be opened read/write.D.The other PDBs will be in mount state.E.The other PDBs will be opened read-only.

  F.The PDBs will be opened read/write.

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• 8Your database is open and the LISTENER listener running. You stopped the wrong listener LISTENER by issuing the following command:1snrctl > STOPWhat happens to the sessions that are presently connected to the database Instance、

  A.They are able to perform only queries.

  B.They are not affected and continue to function normally.

  C.They are terminated and the active transactions are rolled back.

  D.They are not allowed to perform any operations until the listener LISTENER is started.

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• 9Which three statements are true about using flashback database in a multitenant container database (CDB)、

  A.The root container can be flashed back without flashing back the pluggable databases (PDBs).

  B.To enable flashback database, the CDB must be mounted.

  C.Individual PDBs can be flashed back without flashing back the entire CDB.

  D.C.Individual PDBs can be flashed back without flashing back the entire CDB.D.The DB_FLASHBACK RETENTION_TARGET parameter must be set to enable flashback of the CDB.

  E.A CDB can be flashed back specifying the desired target point in time or an SCN, but not a restore point.

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• 10You execute the following commands to audit database activities:SQL > ALTER SYSTEM SET AUDIT_TRIAL=DB, EXTENDED SCOPE=SPFILE;SQL > AUDIT SELECT TABLE, INSERT TABLE, DELETE TABLE BY JOHN By SESSION WHENEVER SUCCESSFUL;Which statement is true about the audit record that generated when auditing after instance restarts、

  A.One audit record is created for every successful execution of a SELECT, INSERT OR DELETE command on a table, and contains the SQL text for the SQL Statements.

  B.One audit record is created for every successful execution of a SELECT, INSERT OR DELETE command, and contains the execution plan for the SQL statements.

  C.One audit record is created for the whole session if john successfully executes aSELECT, INSERT, or DELETE command, and contains the execution plan for the SQL statements.

  D.One audit record is created for the whole session if JOHN successfully executes a select command, and contains the SQL text and bind variables used.

  E.One audit record is created for the whole session if john successfully executes aSELECT, INSERT, or DELETE command on a table, and contains the execution plan, SQL text, and bind variables used.

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