Online Access Free Oracle.1Z1-083.v2024-06-16.q191 Practice Test (Page 25)

1Z1-083 Exam Question 116

Which two are true about Oracle Optimizer Statistics, their use, and their collection? (Choose two.)

A.Index balanced B*Tree height is considered when evaluating the cost of using an index.

B.Statistics collected using DBMS_STATS always yield the best optimizer result.

C.The Statistics Advisor generates actions for all recommendations.

D.The Statistics Advisor can help recommend the best way to gather statistics.

E.The number of table rows is considered when evaluating the cost of accessing a table using an index.

1Z1-083 Exam Question 117

Choose the best answer. How do you configure a CDB for local undo mode?

A.Open the CDB instance in upgrade mode. In each PDB, execute ALTER DATABASE LOCAL UNDO ON, create an UNDO tablespace, and then restart the CDB instance.

B.Open the CDB instance in upgrade mode. In CDB$ROOT, execute ALTER DATABASE LOCAL UNDO ON, and then restart the CDB instance.

C.Open the CDB instance in restricted mode. In CDB$ROOT, drop the UNDO tablespace. Execute ALTER DATABASE LOCAL UNDO ON in each PDB, and then restart the CDB instance.

D.Open the CDB in read-only mode. In CDB$ROOT, execute ALTER DATABASE LOCAL UNDO ON, and then change the CDB to read/write mode.

E.Open the CDB instance in restricted mode. In CDB$ROOT, execute ALTER DATABASE LOCAL UNDO ON. create an UNDO tablespace in each PDB, and then restart the CDB instance.

1Z1-083 Exam Question 118

Choose the best answer. On the 10th of August, you implement an incremental database backup strategy and configure a recovery window of five days. Level 0 backups are taken on the 10th, 17th, and 24th of August. Differential level 1 incremental backups are taken daily between the level 0 backups. Today is the 26th of August. Which backups will be obsolete?

A.all backups prior to 10th of August

B.all backups prior to 17th of August

C.all backups prior to 24th of August

D.all backups prior to 22nd of August

E.all backups prior to 20th of August

1Z1-083 Exam Question 119

Which three actions are performed by the Oracle Preinstallation RPM, oracle-database-server-xxxx- preinstall, for Oracle Grid Infrastructure, where xxxx is the Oracle version and release? (Choose three.)

A.performing checks to ensure minimum configuration requirements for Oracle Grid Infrastructure are met

B.creating the oracleOS user

C.creating the OSDBA (dba) group

D.creating thte oraInventory (oinstall) group

E.creating the grid OS user

F.configuring the OS for Oracle Automatic Storage Management shared storage access

1Z1-083 Exam Question 120

Examine this configuration:
1. CDB1 is a container database.
2. PDB1 and PDB2 are pluggable databases in CDB1.
3. PDB1 and PDB2 are open in read write mode.
You execute these commands successfully:

Which two are true?

A.PDB1 is closed.

B.Uncommitted transactions in PDB1 have been rolled back.

C.CDB1 is shut down.

D.CDB1 is in mount state

E.Uncommitted transactions in CDB1 and pdbi have been rolled back.

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1Z1-083 Exam Question 116

1Z1-083 Exam Question 117

1Z1-083 Exam Question 118

1Z1-083 Exam Question 119

1Z1-083 Exam Question 120

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