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HDFS默认Block Size的大小是( )。
A.32MB
B.64MB
C.128MB
D.256M
参考答案
更多 “ HDFS默认Block Size的大小是( )。 A.32MBB.64MBC.128MBD.256M ” 相关考题
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数据块是Oracle数据库读／写数据的最小存储单元,它的大小由初始化参数db_block_size决定,在Oracle数据库创建时就决定了db_block_size的值。
A．错误B．正确
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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.
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The database has the data block size set to 8 KB. You need to import a tablespace with a 4 KB block size into the database. Which additional memory parameter（s） should be configured to perform a transportable tablespace import？（）A、 DB_4K_CACHE_SIZE onlyB、 DB_8K_CACHE_SIZE onlyC、 DB_BLOCK_SIZE and DB_4K_CACHE_SIZED、 DB_BLOCK_SIZE and DB_8K_CACHE_SIZEE、 SGA_TARGET and DB_4K_CACHE_SIZEF、 DB_CACHE_SIZE only
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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.
考题
单选题The database has the data block size set to 8 KB. You need to import a tablespace with a 4 KB block size into the database. Which additional memory parameter（s） should be configured to perform a transportable tablespace import？（）A
DB_4K_CACHE_SIZE onlyB
DB_8K_CACHE_SIZE onlyC
DB_BLOCK_SIZE and DB_4K_CACHE_SIZED
DB_BLOCK_SIZE and DB_8K_CACHE_SIZEE
SGA_TARGET and DB_4K_CACHE_SIZEF
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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.
考题
判断题数据块是Oracle数据库读/写数据的最小存储单元，它的大小由初始化参数db_block_size决定，在Oracle数据库创建时就决定了db_block_size的值。A
对B
错
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3份B
2份C
1份D
不确定
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