多项选择题

Which two statements are true regarding the use of UTF-16 encoding？（）

A.Enables easier loading of multinational data.
B.Uses a fixed-width Multibyte encoding sequence.
C.Asian characters are represented in three characters.
D.Used a variable-width Multibyte encoding sequence.
E.European characters are represented on one or two bytes.

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单项选择题

What is true regarding a shared， server-side parameter file for a Real Application Cluster database？（）

A.It can contain parameters with distinct values for each distance.
B.It can contain only parameters with identical values for each instance.
C.It must contain an IFILE parameter for each instance’s individual parameter file.
D.It must be located in the default location for the primary instance’s parameter file.

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Why can setting too low a value for the FAST_START_MTTR_TARGET parameter reduce your overall database performance？（）

A.Data blocks have to be written more frequently by DBWR.
B.Redo blocks have to be written more frequently by LGWR.
C.You need to substantially increase the size of your database buffer cache to hold the additional checkpoint records.
D.You need to substantially increase the size of your redo buffer cache to hold the additional checkpoint records.

单项选择题

You are attempting to create an Oracle-Managed Files （OMF） tablespace in a production database with the following statement and receive the following error message：
CREATE TABLESPACE tbsl；
ORA-02199： missing DATAFILE/TEMPFILE clause oerr ora 2199
02199， 00000， “missing DATAFILE/TEMPFILE clause”
*Cause： A CREATE TABLESPACE statement has no DATAFILE/TEMPFTLE clause.
*Action： specify DATAFILE/TEMPFILE clause.
What is the corrective action to create the OMF based tablespace？（）

A.A
B.B
C.C
D.D

Which two statements are true regarding the use of UTF-16 encoding？ （）

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Which two statements are true regarding the use of UTF-16 encoding？（）