A.hdfs dfs-ls test
B.hdfs dfs-mkdir test
C.hdfs dfs-cat test
D.hdfs dfs-put test

A.读
B.写
C.随机读
D.合并

A.hdfs dfs-ls/user/hduser/file1.txt
B.hdfs dfs-mkdir/user/hduser/file1.txt
C.hdfs dfs-cat/user/hduser/file1.txt
D.hdfs dfs-put/user/hduser/file1.txt

A.UPDATE
B.CREATE
C.UPDATED
D.ALTER

A.文件
B.目录
C.两者都是
D.两者都不是

A.NodeManager
B.ResourceManager
C.NameNode
D.DataNode

A.dfs.name.dir
B.dfs.data.dir
C.fs.checkpoint.dir
D.dfs.url

A.1024KB
B.1024MB
C.1024GB
D.1024TB

A.2个
B.3个
C.4个
D.5个

A./boot
B./etc
C./var
D./dev

A.行
B.列
C.网络
D.内存