1Z0-052
多选题You perform differential incremental level 1 backups of your database on each working day and level 0 backupon Sundays， to tape. Which two statements are true about differential incremental backups（）AThe backup performed on Sundays contains all the blo
题目
The backup performed on Sundays contains all the blocks that have ever been used in the database.
The backup performed on Sundays contains all the blocks that have changed since the last level 1 backup.
The backup performed on each working day contains all the blocks that have changed since the last level 0 backup.
The backup performed on Monday contains all the blocks that have changed since the level 0 backup， and every other working day contains all the blocks that have changed since the level 1 backup
相似问题和答案
第1题：
You have a server named Server1 that runs Windows Server 2003 Service Pack 2 (SP2).On Server1, you have the following backup schedule:·Normal backups every Saturday at 01:00·Differential backups every weekday at 02:00, except on SaturdayYou need to perform a complete manual backup of Server1 on Tuesday. The backup must not change which files are backed up during the next scheduled backup.Which type of backup should you perform? （）
A.copy
B.daily
C.incremental
D.normal
第2题：
You are the network administrator for The sales department stores data on a server that runs Windows Server 2003. The backup schedule for the server includes a normal backup on Sundays and incremental backups on every other day of the week. The sales department data includes a report that is created by an automated process. The report is included in the standard backup schedule for the server. The automated process runs on Wednesdays and Sundays. The process overwrites the previous version of the report. You need to be able to restore the report if the standard backup is unavailable. You need to create an additional backup for the report. The backup for the report cannot interfere with other backup jobs. What should you do?（）
- A、Perform a normal backup on Wednesday night and on Sunday night.
- B、Perform a differential backup on Wednesday night and on Sunday night.
- C、Perform a incremental backup on Wednesday night and on Sunday night.
- D、Perform a copy backup on Wednesday night and on Sunday night.
正确答案:D
第3题：
A. You must configure block change tracking file
B. You must have first level 1 backups for RMAN to restore blocks
C. You must ensure that the SALES database is mounted or open
D. You must have full or level 0 backups for RMAN to restore blocks
E. You must take the tools01.dbf data file offline before you start a block media recovery
第4题：
You need to perform a block media recovery on the tools01.dbf data file in the SALES database by using Recovery Manager (RMAN). Which two are the prerequisites to perform this operation? （）(Choose two)
- A、You must configure block change tracking file
- B、You must have first level 1 backups for RMAN to restore blocks
- C、You must ensure that the SALES database is mounted or open
- D、You must have full or level 0 backups for RMAN to restore blocks
- E、You must take the tools01.dbf data file offline before you start a block media recovery
正确答案:C,D
第5题：
Due to operational commitments， a system has a very short backup window during the week， but is not used from Saturday morning through Sunday at Midnight. Which of the following minimizes backup and recovery time， while providing complete data restore coverage （）
- A、Full backups every month， daily incremental backups
- B、Full backups every month， daily differential backups
- C、Full backup Saturday night， incremental backups the rest of the week
- D、Full backup Saturday night， differential backups the rest of the week
正确答案:C
第6题：
You have a server named Server1 that runs Windows Server 2003 Service Pack 2 (SP2). On Server1, you have the following backup schedule: ·Normal backups every Saturday at 01:00 Differential backups every weekday at 02:00, except on Saturday You need to perform a complete manual backup of Server1 on Tuesday. The backup must not change which files are backed up during the next scheduled backup. Which type of backup should you perform? （）
- A、copy
- B、daily
- C、incremental
- D、normal
正确答案:A
第7题：
Which of the following BEST describes the difference between differential and incremental backups？（）
- A、 An incremental backup requires fewer tapes for restoration than a differential backup.
- B、 A differential backup tape takes less time than an incremental backup tape.
- C、 A differential backup requires fewer tapes for restoration than an incremental backup.
- D、 An incremental backup tape costs less than a differential backup tape.
正确答案:C
第8题：
A. You must configure block change tracking file
B. You must have first level 1 backups for RMAN to restore blocks
C. You must ensure that the SALES database is mounted or open
D. You must have full or level 0 backups for RMAN to restore blocks
E. You must take the tools01.dbf data file offline before you start a block media recovery
第9题：
What purpose would you achieve by enabling the block change tracking feature？（）
- A、 Eliminate the necessity for backups.
- B、 Perform optimized image copy backups.
- C、 Perform optimized incremental backups.
- D、 Enable checkpoint （CKPT） to perform checkpointing at every block change.
- E、 Enable database writer （DBWn） to write changed blocks to data files faster.
正确答案:C
第10题：
Your test database is running in NOARCHIVELOG mode. Which statement is true regarding the type ofbackups that can be performed on the database（）
- A、You can perform online whole database backups.
- B、You can performofflinewhole database backups.
- C、You cannot perform schema-level export/import operations.
- D、You can perform the backup of only the SYSTEM tablespace when the database is open.
正确答案:B