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恢复时间目标(Recovery Time Objective,RTO)和恢复点目标(Recovery Point Objective,RPO)是业务连续性和灾难恢复工作中的两个重要指标,随着信息系统越来越重要和信息技术越来越先进,这两个指标的数值越来越小,小华准备为其工作的信息系统拟定RTO和RPO指标,则以下描述中,正确的是:()
- A、RTO可以为0,RPO也可以为0
- B、RTO可以为0,RPO不可以为0
- C、RTO不可以为0,RPO可以为0
- D、RTO不可以为0,RPO也不可以为0
参考答案
更多 “恢复时间目标(Recovery Time Objective,RTO)和恢复点目标(Recovery Point Objective,RPO)是业务连续性和灾难恢复工作中的两个重要指标,随着信息系统越来越重要和信息技术越来越先进,这两个指标的数值越来越小,小华准备为其工作的信息系统拟定RTO和RPO指标,则以下描述中,正确的是:()A、RTO可以为0,RPO也可以为0B、RTO可以为0,RPO不可以为0C、RTO不可以为0,RPO可以为0D、RTO不可以为0,RPO也不可以为0” 相关考题
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多选题If you back up a database without connecting to the recovery catalog, which operations will cause the recovery catalog to be updated?()AThe next time you back up the database when you are also connected to the recovery catalog and the target databaseBThe next time you are connected to the target database and the recovery catalog database and issue the resync commandCThe next time you connect RMAN to just the recovery catalogDThe next time you connect to the recovery catalog and the target database with RMANEConnecting to the recovery catalog and issuing the resync all databases command
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A redo log file was lost at the specified time.C
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单选题A healthcare and life sciences client wants to maintain electronic patient records, including medical images, for a period of seven years. How would the IT storage industry describe this business goal?()A
an archive solution that requires event-based retentionB
a backup solution that provides version-based expirationC
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考题
多选题RTO代表的含义()A当灾难或紧急事件发生时,数据可以恢复到的时间点。B恢复点目标Recovery Point ObjectC恢复时间目标Recovery Time ObjectD指灾难发生后,从IT系统当机导致业务停顿之刻开始,到IT系统恢复至可以支持各部门运作,业务恢复运营之时,此两点之间的时间段
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多选题What are the two advantages of RMAN Block Media Recovery (BMR) over file-level recovery?()ABMR lowers the mean time to recover (MTTR).BBMR supports point-in-time recovery of individual data blocks.CBMR enables you to use incremental backups for block recovery.DBMR enables recovery even when the database is not mounted or open.EBMR enables you to use proxy backups to perform block media recovery.FBMR enables increased availability of data during recovery because the data file requires a recovery can remain online.
考题
单选题RTO(恢复时间目标)的英文全称是什么().A
Retransmission Time-OutB
Recovery Time ObjectiveC
Recovery Point ObjectiveD
Railway Transportation Office
考题
单选题You performed an incomplete recovery on your Oracle Database 10g database using the following command: SQL RECOVER DATABASE 2 UNTIL TIME ’2004-08-05:12:10:03’ 3 USING BACKUP CONTROLFILE; In which situation would the above recovery be required?()A
A user table was lost at the specified time.B
A redo log file was lost at the specified time.C
The backup control file is on a faster disk than the current one.D
The current control file has a different path compared with the intended time of recovery.E
The current control file does not match the physical structure of the database at the intended time of recovery.
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多选题You are working on a test database where instance recovery takes a considerable amount of time. How can reduce the recovery time?()ABy multiplexing the control filesBBy multiplexing the redo log filesCBy decreasing the size of redo log filesDBy configuring mean time to recover (MTTR) to a lower valueEBy setting the UNDO_RETENTION parameter to a higher value
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单选题A healthcare and life sciences client wants to maintain electronic patient records, including medical images, for two years after each patient’s death. How would the IT storage industry describe this business goal?()A
Archive solution that requires event-based retentionB
Backup solution that provides version-based expirationC
Business continuity solution that provides two years Recovery Time Objective (RTO)D
Business continuity solution that provides two years Recovery Point Objective (RPO)
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