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单选题
You are creating tablespaces in Oracle. Which of the following keywords or clauses permits the datafiles of a database to grow automatically in order to accommodate data growth?（）
A
DEFAULT STORAGE
B
EXTENT MANAGEMENT
C
AUTOEXTEND
D
DATAFILE
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You created an encrypted tablespace:You then closed the encryption wallet because you were advised that this is secure.Later in the day, you attempt to create the EMPLOYEES table in the SECURESPACE tablespace with the SALT option on the EMPLOYEE column.Which is true about the result?（）A. It creates the table successfully but does not encrypt any inserted data in the EMPNAME column because the wallet must be opened to encrypt columns with SALT.B. It generates an error when creating the table because the wallet is closed.C. It creates the table successfully, and encrypts any inserted data in the EMPNAME column because the wallet needs to be open only for tablespace creation.D. It generates error when creating the table, because the salt option cannot be used with encrypted tablespaces.
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单选题Your boss at Certkiller .com wants you to clarify Oracle 10g. Which condition in your database forces you to perform only consistent backups？（）A
The database is in mount state.B
One of the tablespaces is offline.C
One of the tablespaces is read only.D
The database operates in ARCHIEVELOG mode.E
The database operates in NOARCHIEVELOG mode.
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单选题You created an encrypted tablespace: You then closed the encryption wallet because you were advised that this is secure. Later in the day, you attempt to create the EMPLOYEES table in the SECURESPACE tablespace with the SALT option on the EMPLOYEE column. Which is true about the result?（）A
It creates the table successfully but does not encrypt any inserted data in the EMPNAME column because the wallet must be opened to encrypt columns with SALT.B
It generates an error when creating the table because the wallet is closed.C
It creates the table successfully, and encrypts any inserted data in the EMPNAME column because the wallet needs to be open only for tablespace creation.D
It generates error when creating the table, because the salt option cannot be used with encrypted tablespaces.
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