HDFS 默认 Block Size()
A32MB
B64MB
C128MB
第1题:
dfs.block.size-数据块大小,默认是?()
第2题:
HDFS中的block默认保存()份.
第3题:
A System p administrator is attempting to restore some files from a backup tape. The restore failed. The system administrator suspects the block size of the tape drive is incorrect. Which of the following commands can be used to determine the block size of the backup tape ()
第4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?()
第5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?()
第6题:
You have executed this command to change the size of the database buffer cache: SQL> ALTER SYSTEM SET DB_CACHE_SIZE=2516582; System altered. To verify the change in size, you executed this command: SQL> SHOW PARAMETER DB_CACHE_SIZE NAME TYPE VALUE ------------------- ----------- ------------------ db_cache_size big integer 4194304 (4M) Why is the value set to 4194304 and not to 2516582()
第7题:
关于Block和Split两个概念,下面说法错误的是()
第8题:
Choosing the extent allocation type to uniform
Choosing the Segment Space Management option to manual
Setting autoextension on for the data file mentioned for the tablespace
Setting the DB_16K_CACHE_SIZE parameter for the database instance to a nonzero value
第9题:
3份
2份
1份
不确定
第10题:
DB_4K_CACHE_SIZE only
DB_8K_CACHE_SIZE only
DB_BLOCK_SIZE and DB_4K_CACHE_SIZE
DB_BLOCK_SIZE and DB_8K_CACHE_SIZE
SGA_TARGET and DB_4K_CACHE_SIZE
DB_CACHE_SIZE only
第11题:
( 难度:中等)Hdfs默认Block size
A.16MB
B.32MB
C.64MB
D.128MB
答案:C
第12题:
(难度:中等)因为hdfs上的文件会按block size进行拆分,所以Hbase的region大小不需要管理,1张表只设置1个region即可。
答案:(no)
第13题:
spark进行数据切分的时候,划分完成的partition个数和hdfs中block个数一致
第14题:
APG网元计费出现拥塞的时候,一般那几个SIZE会迅速增大?()
第15题:
A system administrator is attempting to restore some files from a backup tape. The restore failed. The system administrator suspects the block size of the tape drive is incorrect. Which of the following commands can be used to determine the block size of the backup tape?()
第16题:
An administrator trying to restore a backup from tape encounters read errors. The administrator suspects that it could be an issue with the block device. What is the appropriate method to resolve this issue?()
第17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?()
第18题:
HDFS1.0默认Block Size大小是多少()。
第19题:
32MB
64MB
128MB
256MB
第20题:
Because 4194304 is the granule size
Because 4194304 is the standard block size
Because 4194304 is the largest nonstandard block size defined in the database
Because 4194304 is the total size of data already available in the database buffer cache
第21题:
3份
2份
1份
不确定
第22题:
The parameter DB_CACHE_SIZE must be a multiple of 8.
The value of the parameter SGA_MAX_SIZE must be increased.
The tablespace must be created with a uniform extent size of 8 KB
The parameter DB_8K_CACHE_SIZE must be defined in the parameter file.
第23题:
( 难度:中等)hdfs中block默认备份数量是
A.1份
B.2份
C.3份
D.视数据量而定
答案:C