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1. Why is manual archiving not recommended?

A) A DBA must issue an SQL command to archive the online redo-log files.
B) An operating systems script must be written to copy the online redo-log files.
C) Additional disk resources are required.
D) More background processes are required.

2. Given the RMAN script:
run(
allocation channel t2 type 'SET_TAPE'
backup filesperset 3
format '/disk1/backup/ar_%t_%s_%p'
(Archivelog from logseq*1056 until logseq*1056
thread*1 delete input):
)
What does this script do?

A) Backup one archived log into one backup piece.
B) Backup one archived log into three backup set.
C) Backup three archived logs into one backup set.
D) Backup three data files into one backup set.
E) Backup one data file into one backup set.
F) Backup three archived logs into three backup pieces.

3. The developers have implemented parallel DML operations. How can a DBA make
sure that the archiving process is able to keep up with archiving the redo-log files?

A) Spawn multiple archiver processes.
B) There is no way to ensure this.
C) Increase the shared pool size.
D) Spawn multiple database writers.

4. In which mode is 'Closed database backups' the only backup option available?

A) READ WRITE mode.
B) READ ONLY mode.
C) NOARCHIVELOG mode.
D) ARCHIVELOG mode.

5. A tablespace becomes unavailable because of a failure. The database is running in
NOARCHIVELOG mode?
What should the DBA do to make the database available?

A) Restore the data files, redo log files, and control files from an earlier copy of a full database backup.
B) Perform a tablespace recovery.
C) Perform a complete database recovery.
D) There is no possibility too make the database available.

問題與答案：