Why is Apache Spark faster than Apache Hadoop?
What is a speculative execution in Apache Hadoop MapReduce?
What are the most commonly defined input formats in Hadoop?
What are the basic available commands in Hadoop sqoop ?
What is the difference between HDFS and NAS ?
How does master slave architecture in the hadoop?
What are the default configuration files that are used in hadoop?
What is the difference between rdbms and hadoop?
What is HDFS block size and what did you chose in your project?
How the Client communicates with HDFS?
What is Writable & WritableComparable interface?
What is the function of ApplicationMaster?
What are the important differences between apache and hadoop?