Free Access Oracle.1z0-062.v2022-12-05.q411 Practice Test (Page 57)

Question 276

You are administering a database stored in Automatic Storage Management (ASM). You use RMAN to back up the database and the MD_BACKUP command to back up the ASM metadata regularly. You lost an ASM disk group DG1 due to hardware failure.
In which three ways can you re-create the lost disk group and restore the data?

A.Use the MD_RESTORE command to restore metadata for an existing disk group by passing the existing disk group name as an input parameter and use RMAN to restore the data.

B.Use the MKDGcommand to restore the disk group with the same configuration as the backed-up disk group and data on the disk group.

C.Use the MD_RESTORE command to restore the disk group with the changed disk group specification, failure group specification, name, andother attributes and use RMAN to restore the data.

D.Use the MKDG command to restore the disk group with the same configuration as the backed-up disk group name and same set of disks and failure group configuration, and use
RMAN to restore the data.

E.Use the MD_RESTORE command to restore both the metadata and data for the failed disk group.

F.Use the MKDG command to add a new disk group DG1 with the same or different specifications for failure group and other attributes and use RMAN to restore the data.

Question 277

Your database instance has the following parameter setting:
OS_AUTHENT_PREFIX = OPS$
You execute the following command:

And then grant OPS$GUEST_USERthe CREATE SESSIONprivilege.
Which two statements are true? (Choose two.)

A.The authentication details for GUEST_USERare stored in the database password file.

B.GUEST_USERcan query the tables created in the USERStablespace by default.

C.GUEST_USERcan log on to the database without specifying a username and password.

D.A local GUEST_USEROS account should exist before GUEST_USERcan log on to the database.

E.GUEST_USERis forced to change the password at the first login.

Question 278

You find this query being used in your Oracle 12c database:

Which method a used by the optimizer to limit the rows being returned?

A.A view is created during execution and a filter on the view limits the rows to 20 percent of the total rows.

B.A filter is added to the table query dynamically using ROWNUM to limit the rows to 20 percent of the total rows

C.All the rows are returned to the client or middle tier but only the first 20 percent are returned to the screen or the application.

D.A TOP-N query is created to limit the rows to 20 percent of the total rows

Question 279

Your multitenant container database (CDB) contains some pluggable databases (PDBs), you execute the
following command in the root container:

Which two statements are true? (Choose two.)

A.Schema objects owned by the C# # A_ADMIN common user can be shared across all PDBs.

B.The C # # A_ADMIN user will be able to use the TEMP_TS temporary tablespace only in root.

C.The command will, create a common user whose description is contained in the root and each PDB.

D.The schema for the common user C # # A_ADMIN can be different in each container.

E.The command will create a user in the root container only because the container clause is not used.

Question 280

Your multitenant container (CDB) contains two pluggable databases (PDB), HR_PDB and ACCOUNTS_PDB, both of which use the CDB tablespace. The temp file is called temp01.tmp.
A user issues a query on a table on one of the PDBs and receives the following error:
ERROR at line 1:
ORA-01565: error in identifying file '/u01/app/oracle/oradata/CDB1/temp01.tmp' ORA-27037: unable to obtain file status Identify two ways to rectify the error.

A.Add a new temp file to the temporary tablespace and drop the temp file that that produced the error.

B.Shut down the database instance, restore the temp01.tmp file from the backup, and then restart the database.

C.Take the temporary tablespace offline, recover the missing temp file by applying redo logs, and then bring the temporary tablespace online.

D.Shutdown the database instance, restore and recover the temp file from the backup, and then open the database with RESETLOGS.

E.Shut down the database instance and then restart the CDB and PDBs.

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Question 276

Question 277

Question 278

Question 279

Question 280

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