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单选题
What is the maximum database block size supported for the Oracle9i database？（）
A
16KB
B
32KB
C
64KB
D
128KB
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单选题The DB_BLOCK_CHECKING initialization parameter is set to FALSE. What level of block checking would be performed？（）A
The Oracle database will not perform block checking for any of the data blocks.B
The Oracle database will perform block checking for the default permanent tablespace only. C
The Oracle database will perform block checking for the data blocks in all user tablespaces.D
The Oracle database will perform block checking for the data blocks in the SYSTEM tablespace only.E
The Oracle database will perform block checking for the data blocks in the SYSTEM and SYSAUX tablespaces.
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单选题Automatic Shared Memory Management （ASMM） has been enabled for your database instance. Theinitialization parameters for the components that are managed by ASMM are not set. After observing theeffects of ASSM， you executed the following command： SQL ALTER SYSTEM SET DB_CACHE_SIZE = 100M； Which statement is true in this scenario（）A
The minimum memory size for the database buffer cache is set to 100 mb.B
The maximum memory size that can be obtained by the database buffer cache during ASMM is set to100 mbC
The minimum memory size allocated for a server process in the database buffer cache in dedicatedmode is set to 100 mb.D
The maximum memory size from the database buffer cache that can be released for dynamicdistribution during ASMM is set to 100 mb
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单选题The datafiles of your database are ASM files. You are performing a check for datafile block corruption by using the DBVERIFY utility. What is a prerequisite for checking block corruption on an ASM datafile by using the DBVERIFY utility？（）A
The block change tracking feature must be enabled.B
OMF must be configured on your database.C
The database must be in ARCHIVELOG mode.D
A USERID must be supplied.
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单选题What is the maximum database block size supported for the Oracle9i database？（）A
16KBB
32KBC
64KBD
128KB
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单选题A SQL Azure database generates an error when a row is inserted into any table in the database. No error is generated when a row is deleted. You need to recommend an approach for locating the source of the errors. What should you recommend？（）A
Use a Dynamic Management View to check for locks.B
Use a Dynamic Management View to check for blocked queries.C
Use a Dynamic Management View to check for long-running queries.D
Use a Dynamic Management View to check the size and maximum size of the database.
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单选题Your database block size is 4 KB. In this database， you are required to create a tablespace with a block size of 8 KB. Which is the prerequisite for creating this tablespace？（）A
The parameter DB_CACHE_SIZE must be a multiple of 8.B
The value of the parameter SGA_MAX_SIZE must be increased.C
The tablespace must be created with a uniform extent size of 8 KBD
The parameter DB_8K_CACHE_SIZE must be defined in the parameter file.
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单选题A specialist is monitoring performance on a server. The data is on another partition within the same array as the OS. The following information is available： （1）The average record written to disk is 16KB （2）The I/O block size is 2KB （3）The stripe size on the RAID array is 16KB Which of the following will improve performance without rebuilding the operating system？（）A
Change the I/O block size to match the RAID Stripe size.B
Change the RAID stripe size to match the I/O block size.C
Change the record size of the database to match the RAID stripe size.D
Change the record size of the database to match the I/O transfer rate.
考题
单选题The DB_BLOCK_CHECKING initialization parameter is set to OFF. Which block checking would be performed？（）A
The Oracle database will perform block checking for the index blocks onlyB
The Oracle database will not perform block checking for any of the data blocksC
The Oracle database will perform block checking for the default permanent tablespace onlyD
The Oracle database will perform block checking for the data blocks in all user tablespacesE
The Oracle database will perform block checking for the data blocks in the SYSTEM tablespace only
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