Cloudera Apache Hadoop Administration Quiz Questions and Answers

What is the default HDFS block size?

Answer :
  • 128MB

HDFS data blocks can be read in parallel.

Answer :
  • True

What is the full form of fsck?

Answer :
  • File System Check

In Linux, everything is stored as_____.

Answer :
  • files

Which command is used to see the list of users who are currently logged in?

Answer :
  • who

Which directory in Linux contains all the config files of the system?

Answer :
  • /etc

What command is used to see the file contents?

Answer :
  • cat

_________ NameNode is used when the Primary NameNode goes down.

Answer :
  • Standby

Which scenario demands the highest bandwidth for data transfer between nodes in Hadoop?

Answer :
  • Nodes in different data centers

The file in Namenode that stores the information mapping the data block location with file name is...

Answer :
  • fsimage