Briefing Cloudera Knowledge

Which command does Hadoop offer to discover missing or corrupt HDFS data?

Which command does Hadoop offer to discover missing or corrupt HDFS data?

A.
Hdfs fsck

B.
Dskchk

C.
The map-only checksum

D.
Hadoop does not provide any tools to discover missing or corrupt data; there is not need
because three replicas are kept for each data block

E.
Hdfs fs –du