Free Access Oracle.1z0-062.v2022-06-21.q305 Practice Test (Page 60)

Question 291

On your Oracle 12c database, you Issue the following commands to create indexes
SQL > CREATE INDEX oe.ord_customer_ix1 ON oe.orders (customers_id, sales_rep_id) INVISIBLE;
SQL> CREATE BITMAP INDEX oe.ord_customer_ix2 ON oe.orders (customers_id, sales_rep_id);
Which two statements are correct?

A.Both the indexes are created; however, only the ORD_COSTOMER index is visible.

B.The optimizer evaluates index access from both the Indexes before deciding on which index to use for query
execution plan.

C.Only the ORD_CUSTOMER_IX1 index is created.

D.Only the ORD_CUSTOMER_IX2 index is created.

E.Both the indexes are updated when a new row is inserted, updated, or deleted In the orders table.

Question 292

Which three file types are stored in the Fast Recovery Area by default in a traditional nonOMF file system?
(Choose three.)

A.parameter file

B.multiplexed copies of the current control file

C.online redo log files

D.Flashback Data Archive files

E.Flashback logs

F.archived log files

Question 293

A database uses Automatic Storage Management (ASM) as database storage, which has a diskgroup, DATA1, which is created as follows:

What happens when the FAILGRP1 failure group is corrupted?

A.Transactions that are using the diskgroup fail.

B.Mirroring of allocation units occurs within the FAILGRP2 failure group.

C.Data in the FAILGRP1 failure group is moved to the FAILGRP2 failure group and rebalancing is started.

D.ASM does not mirror any data and newly allocated primary allocation units (AU) are stored in the FAILGRP2 failure group.

Question 294

Which statement is true about the Log Writer process?

A.It writes after the Database Writer process writes dirty buffers to disk.

B.It writes when a user commits a transaction.

C.It writes concurrently to all members of multiplexed redo log groups.

D.It writes when it receives a signal from the checkpoint process (CKPT).

Question 295

Your multitenant container database, CDB1, is running in ARCHIVELOG mode and has two pluggable
databases, HR_PDB and ACCOUNTS_PDB. An RMAN backup exists for the database.
You issue the command to open ACCOUNTS_PDB and find that the USERDATA.DBF data file for the
default permanent tablespace USERDATA belonging to ACCOUNTS_PDB is corrupted.
What should you do before executing the commands to restore and recover the data file in
ACCOUNTS_PDB?

A.Place CDB1 in the mount stage and then the USERDATA tablespace offline in ACCOUNTS_PDB.

B.Place CDB1 in the mount stage and issue the ALTER PLUGGABLE DATABASE accounts_pdb
CLOSE IMMEDIATE command.

C.Issue the ALTER PLUGGABLE DATABASE accounts_pdb RESTRICTED command.

D.Take the USERDATA tablespace offline in ACCOUNTS_PDB.

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