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Hadoop Interview Questions
Questions Answers Views Company eMail

What do you understand by Filters in HBase?

143

Explain the various table design approaches in HBase?

138

What is table in hbase?

204

Which method is used to access HFile directly without using HBase?

205

Which type of data HBase can store?

154

How to delete the table with the HBase shell?

143

What services run after running hbase job?

168

What is the use of truncate command?

188

Explain MemStore?

176

What is the best practice on deciding the number of column families for HBase table?

168

Which command do we use to run HBase Shell?

197

Define compaction in HBase?

168

Difference between hbase and rdbms?

176

What do you understand by compaction?

158

Does HBase support SQL like syntax?

153


Un-Answered Questions { Hadoop }

What do you mean by consistency in Cassandra?

186


Use of Help command in Hadoop sqoop?

5


Is HDFS utilized in Cassandra? If yes, where?

80


Explain jmx concerning hbse

174


Clarify about the smb join in hive?

658


Explain first() operation in Apache Spark RDD?

369


How to handle bad records during parsing?

453


Different ways of debugging a job in MapReduce?

1106


What is the significance of the line set hive.mapred.mode = strict;?

799


What do you mean by replication strategy?

81


How can one increase replication factor to a desired value in Hadoop?

1120


What is the purpose of button groups?

752


What are the side data distribution techniques?

479


Define cell in HBase?

166


Highlight the key differences between MapReduce and Apache Pig?

708