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Hadoop Interview Questions
Questions Answers Views Company eMail

What is your favourite tool in the hadoop ecosystem?

919

What is the function of NodeManager?

867

Difference between SQL and HiveQL ?

1 3448

what is pig?

794

What are the steps involved in MapReduce framework?

932

explain Metadata in Namenode?

860

What is a 'block' in HDFS?

928

What is Derby database?

858

How many Daemon processes run on a Hadoop system?

1059

What are the limitations of importing RDBMS tables into Hcatalog directly?

899

How the Client communicates with HDFS?

1010

What is NoSQL?

874

What is Row Key?

935

What is a Task instance in Hadoop? Where does it run?1

819

What does the overwrite keyword denote in Hive load statement?

1 2431


Un-Answered Questions { Hadoop }

What is a Block Scanner in HDFS?

89


What is the difference between pig and hive?

665


What is a bag in pig?

582


How to call impala built-in functions?

47


What is DStream in Apache Spark Streaming?

305


How to start hbase services?

210


Explain apache kafka?

481


Why is spark so fast?

263


What is the function of consistency cqlsh command in Cassandra?

76


Explian the Limitations of HBase?

181


Is Pig script case sensitive?

558


What happens when two clients try to access the same file in the hdfs?

424


What are the different math functions available in Pig?

474


Write a Mapreduce Program for Character Count ?

1005


What are the two main parts of the hadoop framework?

603