Free Access Oracle.1z0-063.v2022-04-21.q171 Practice Test (Page 21)

Question 96

A complete database backup to media is taken for your database every day. Which three actions would you take to improve backup performance?

A.Set the backup_tape_io_slaves parameter to true.

B.Set the dbwr_io_slaves parameter to a nonzero value if synchronous I/O is in use.

C.Configure large pool if not already done.

D.Remove the rate parameter, if specified, in the allocate channel command.

E.Always use RMAN compression for tape backups rather than the compression provided by media manager.

F.Always use synchronous I/O for the database.

Question 97

You are administering a multitenant container database (CDB) CDB1with two pluggable databases (PDBs), PDB1and PDB2. You execute the following commands on CBD$ROOTas the SYSuser:
SQL> CREATE USER c##scott IDENTIFIED BY scottorcl1;
SQL> GRANT CREATE SESSION TO c##scott;
Which statement is true about the C##SCOTTuser?

A.It is created in all the PDBs with the CREATE SESSIONprivilege.

B.It is created in all the PDBs but has the CREATE SESSIONprivilege only in CDB$ROOT.

C.It is created and has the CREATE SESSIONprivilege only in a PDB that is open.

D.It is created only in CDB$ROOTand has the CREATE SESSIONprivilege.

Question 98

A complete database backup to media is taken for your database every day. Which three actions would you take to improve backup performance? (Choose three.)

A.Set the backup_tape_io_slaves parameter to true.

B.Set the dbwr_io_slaves parameter to a nonzero value if synchronous I/O is in use.

C.Configure large pool if not already done.

D.Remove the rate parameter, if specified, in the allocate channel command.

E.Always use RMAN compression for tape backups rather than the compression provided by media manager.

F.Always use synchronous I/O for the database.

Question 99

Examine the command and its output:
SQL> DROP TABLE EMPLOYEE;
SQL> SELECT object_name AS recycle_name, original_name, type FROM recyclebin;
RECYCLE_NAMEORIGINAL_NAMETYPE
binsgk31sj/3akk5hg3j21kl5j3d==$0EMPLOYEE TABLE
You then successfully execute the command:
SQL> FLASHBACK TABLE "BINSgk31sj/3akk5hg3j21kl5j3d==$0" TO BEFORE DROP;
Which two statements are true?

A.It automatically flashes back any triggers defined on the table.

B.It flashes back only the structure of the table and not the data.

C.It automatically flashes back all the indexes on the employes table.

D.It flashes back the employee tableand all the constraints associated with the table.

E.It flashes back the data from the recycle bin and the existing data in the original table is permanently lost.

Question 100

One of your databases supports a data warehousing workload and is in NOARCHIVELOG mode. You perform RMAN level 0 backup on Sundays and level 1 incremental backups on other days.
One data file is corrupt and the current online redo log is missing due to media failure.
Which four actions must you take for recovery? (Choose four.)

A.Recover the corrupt file by using RECOVER DATAFILE.

B.Open the database by using the RESETLOGS option.

C.Restore the control file.

D.Restore the missing data file.

E.Recover the database by using RECOVER DATABASE NOREDO;

F.Recover the database by using RECOVER DATABASE;

G.Restore all data files.

Other Version: 2159Oracle.1z0-063.v2022-10-18.q151

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Question 100

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