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To enable faster incremental backups, you enabled block change tracking for the database.Which two statements are true about the block change tracking file?（）

A、Multiple change tracking files can be created for a database.

B、The change tracking file must be created after the first level 0 backup.

C、RMAN does not support backup and recovery of the change tracking file.

D、The database clears the change tracking file and starts tracking changes again, after whole database restore and recovery operations.

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更多“To enable faster incremental backups, you enabled block change tracking for the database.Which two statements are true about the block change tracking file?（）”相关的问题
第1题
[] What purpose would you achieve by enabling the block change tracking feature？（）

A、A. Eliminate the necessity for backups.  B、B. Perform optimized image copy backups.  C、C. Perform optimized incremental backups.  D、D. Enable checkpoint （CKPT） to perform checkpointing at every block change.  E、E. Enable database writer （DBWn） to write changed blocks to data files faster.  

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第2题
[单选题] You are developing a Web application. Your code restricts access to some pages based on the users credentials. You need to configure IIS to supply the user's Windows credentials to your Web application. These credentials must be encrypted. What should you do? （）

A、Enable Anonymous access. Enable Integrated Windows authentication.  B、Enable Anonymous access. Enable Basic authentication.  C、Disable Anonymous access. Enable Integrated Windows authentication.  D、Disable Anonymous access. Enable Basic authentication.  

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第3题
[单选题] What is  reason the customer should install IBM DS8000 Virtual Private Network （VPN） technology for the Call Home function（）

A、to avoid using a more expensive dial-up modem  B、to load new licensed internal code  C、to achieve more efficient and faster problem resolution  D、to enable capacity on demand  

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第4题
[单选题] What is one reason the customer should install IBM System Storage DS8000 Virtual Private Network （VPN） technology for the Call Home function（）

A、to avoid using a more expensive dial-up modem  B、to load new licensed internal code  C、to achieve more efficient and faster problem resolution  D、to enable capacity on demand  

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第5题
[] What is one reason the customer should install IBM DS8000 Virtual Private Network （VPN） technology for the Call Home function（）

A、A.to avoid using a more expensive dial-up modem  B、B.to load new licensed internal code  C、C.to achieve more efficient and faster problem resolution  D、D.to enable capacity on demand  

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第6题
[单选题] What is the recommended practice regarding UDLD when implementing it in all fiber-optic LAN ports?（）

A、Adjust the default hello timers to three seconds for aggressive mode.  B、Enable it in global mode and on every interface you need to support.  C、Enable it in global mode to support every individual fiber-optic interface.  D、Enable it to create channels containing up to eight parallel links between switches.  E、Enable it in global mode to support every individual fiber optic and Ethernet interface.  

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第7题
[单选题] You have not configured Oracle Managed Files (OMF) in your database. You do not want to scan the entire datafile every time an incremental backup is performed. You decide to enable the block change tracking feature.Which statement should you use to enable the block change tracking feature?（）

A、ALTER DATABASE ENABLE BLOCK CHANGE TRACKING  B、ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE   C、ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE   D、ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING  

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第8题
[单选题] You have not configured Oracle Managed Files (OMF) in your database. You do not want to scan the entire datafile every time an incremental backup is performed. You decide to enable the block change tracking feature. Which statement should you use to enable the block change tracking feature?（）

A、ALTER DATABASE ENABLE BLOCK CHANGE TRACKING;  B、ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE <path>;  C、ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE <path>;  D、ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING;  

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第9题
[单选题] You enabled block change tracking for faster incremental backups in your database. Which background process writes to the change tracking file？（）

A、 RBAL  B、 CKPT  C、 SMON  D、 PMON  E、 MMON  F、 CTWR  H、 DBWR  

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