You are managing an Oracle Database 11g database with the following backup strategy: 1.
On Sunday, an incremental level 0 tape backup is performed 2. Monday through Saturday,
a cumulative incremental level 1 tape backup is performed Which two statements are true
regarding the backups performed? (Choose two.)
A.
The backup performed in step 1 backs up all the blocks changed since the most recent
level 1 backup
B.
The backup performed in step 2 copies all the blocks changed since the most recent
level 0 backup
C.
The backup performed in step 1 backs up all blocks that have ever been in use in the
database
D.
The backup performed in step 2 backs up all blocks that have changed since the most
recent incremental backup at level 1
A is also true, even though it does it fact back up more than what is suggested.
C is not in fact correct, although I can see that this is the answer that is looked for. See my comment for question 50 for the reason.
Peace to all
A.
The backup performed in step 1 backs up all the blocks changed since the most recent
level 1 backup
Wrong.
Example:
After level 1, there are changes in blocks ABC. Although, used blocks are ABCD. Level 0 should backup ABCD, not just the ABC.
B) level 1 incremental backup can be either of the following types:
*differential backup, which backs up all blocks changed after the most recent incremental backup at level 1 or 0
*cumulative backup, which backs up all blocks changed after the most recent incremental backup at level 0
C)level 0 incremental backup, which is the base for subsequent incremental backups, copies all blocks containing data, backing the datafile up into a backup set just as a full backup would.