Define data integrity?
Explain what is a difference between an input split and hdfs block?
What is a block in Hadoop HDFS? What should be the block size to get optimum performance from the Hadoop cluster?
Can you modify the file present in hdfs?
Does HDFS allow a client to read a file which is already opened for writing in hadoop?
How data or file is read in HDFS?
How data or a file is written into hdfs?
How can one copy a file into HDFS with a different block size to that of existing block size configuration?
Replication causes data redundancy then why is pursued in hdfs?
Explain the hdfs architecture and list the various hdfs daemons in hdfs cluster?
How to change the replication factor of data which is already stored in HDFS?
If data is present in HDFS and RF is defined, then how can we change Replication Factor?
How to access HDFS?
What is hdfs in big data?
What do you mean by meta data in hdfs? List the files associated with metadata.
