Oracle Updated 1z0-083 Exam Questions and Answers by declan

log writer performance

database writer performance

general operating system health

SQL statements

database instance memory management and sizes

Backups can be taken only if a fast recovery area is configured.

Backups can be written only to disk.

Backups can be taken only for data files.

Binary compression cannot be applied to the backup.

Backups can be written only if checksums are stored for each block.

Backups can be written only to media.

Re-create or migrate the password file to the Oracle Database 12c format

Grant the SYSBACKUP, SYSDG, and SYSKM privileges to the intended users.

Copy the password file from a sample file in the DBS dierectory

Assign appropriate operating system groups to SYSBACKUP, SYSDG, and SYSKM.

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

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

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

Statistics collected using DBMS_STATS always yield the best optimizer result.

The Statistics Advisor generates actions for all recommendations.