[OracleDBA启动和关闭例程笔试题]q. 1 : the database must be in this mode for the instance to be started 1. mount 2. open 3. nomount 4. none 3 q. 2 : when oracle startups up, what happens if a...+阅读
q. 1 : what option of exporting allows quicker data extractions
1. grants =y
2. consistent =y
3. direct = true
4. direct=y
4 : direct=y option bypasses the sql layer to allow quicker data extractions
q. 2 : how are exports useful ?
1. can be used to recover to a point in time
2. can be used to recover from a media failure
3. can be used to recover dropped tables due a user error
4. none of the above
3
q. 3 : what are the 3 levels of exports
1. global, user, tablespace
2. full, user, table
3. full, tablespace, table
4. global, local, transactional
2
q. 4 : the following methods can be used to run exports
1. interactive dialog
2. export section of data manager in oem
3. mand line interface with parameter file
4. all of the above
4
q. 5 : which of the following are valid parameters for an export utility
1. log
2. statistics
3. direct
4. all of the above
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