多項選擇題

Which three statements are true about the stages of database startup？（）

A.Data files and redo log files can be renamed at the MOUNT stage.
B.Control files are read at the OPEN stage for the location of data files.
C.Control files are required to bring the database to the NOMOUNT stage.
D.Data files and redo log files are made available to users at the OPEN stage.
E.Data files and online redo log files are checked for consistency while opening the database

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多項選擇題

Which three pieces of information are considered while deciding the size of the undo tablespace in your database？（）

A.the size of an undo block
B.the size of the redo log files
C.undo blocks generated per second
D.the size of the database buffer cache
E.the value of the UNDO_RETENTION parameter

多項選擇題

You connected to the database using the following connection string： CONNECT hr/hr@test.us.oracle.com：1521/mydb
Which three statements are correct regarding the connection string？（）

A.mydb is a service name.
B.test.us.oracle.com is a database name.
C.1521 is the listener port number.
D.mydb is a host name.
E.test.us.oracle.com is a net service name.
F.hr is a username.
G.test.us.oracle.com is an instance name.

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Which three statements are true about the stages of database startup？（）

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Which three pieces of information are considered while deciding the size of the undo tablespace in your database？（）

You connected to the database using the following connection string： CONNECT hr/hr@test.us.oracle.com：1521/mydb Which three statements are correct regarding the connection string？（）

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Which three statements are true about the stages of database startup？（）

You connected to the database using the following connection string： CONNECT hr/hr@test.us.oracle.com：1521/mydb
Which three statements are correct regarding the connection string？（）