Download Oracle.1z0-063.ExamLabs.2020-02-11.165q.tqb
| Vendor: | Oracle |
| Exam Code: | 1z0-063 |
| Exam Name: | Oracle Database 12c: Advanced Administration |
| Date: | Feb 11, 2020 |
| File Size: | 2 MB |
Demo Questions
Question 1
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.)
- Set the backup_tape_io_slaves parameter to true.
- Set the dbwr_io_slaves parameter to a nonzero value if synchronous I/O is in use.
- Configure large pool if not already done.
- Remove the rate parameter, if specified, in the allocate channel command.
- Always use RMAN compression for tape backups rather than the compression provided by media manager.
- Always use synchronous I/O for the database.
Correct answer: BCD
Explanation:
Reference:http://docs.oracle.com/cd/B19306_01/backup.102/b14191/rcmtunin.htm Reference:
http://docs.oracle.com/cd/B19306_01/backup.102/b14191/rcmtunin.htm
Question 2
You notice performance degradation in your production Oracle 12c database. You want to know what caused this performance difference.
Which method or feature should you use?
- Database Replay
- Automatic Database Diagnostic Monitor (ADDM) Compare Period report
- Active Session History (ASH) report
- SQL Performance Analyzer
Correct answer: B
Question 3
Which three statements are true about a job chain? (Choose three.)
- It can contain a nested chain of jobs.
- It can be used to implement dependency-based scheduling.
- It cannot invoke the same program or nested chain in multiple steps in the chain.
- It cannot have more than one dependency.
- It can be executed using event-based or time-based schedules.
Correct answer: ABE
Explanation:
Reference:http://docs.oracle.com/cd/B28359_01/server.111/b28310/scheduse009.htm#ADMIN12459 Reference:
http://docs.oracle.com/cd/B28359_01/server.111/b28310/scheduse009.htm#ADMIN12459
