Hadoop Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Apache Hadoop (394)
MapReduce (354)
Apache Hive (345)
Apache Pig (225)

Apache Ambari (93)
Apache HCatalog (34)
Apache HDFS Hadoop Distributed File System (214)
Apache Kafka (189)

Hadoop Interview Questions

Questions Answers Views Company eMail

How many operational commands in hbase?

171

why use hcolumndescriptor class?

153

What is the row key?

161

Tell me about the types of hbase operations?

179

How does hbase actually delete a row?

203

Name the filter which accepts the page size as the parameter in hbase?

190

Explain why to use hbase?

166

Mention the difference between hbase and relational database?

172

Mention what are the three types of tombstone markers in hbase?

225

Mention what are the key components of hbase?

181

Explain what is the row key?

153

Can the region server will be located on all datanodes?

322

What is the meaning of compaction in hbase?

169

Discuss how you can use filters in apache hbase

164

Explain jmx concerning hbse

181

Un-Answered Questions { Hadoop }

What port does spark use?

330

Can we use kafka without zookeeper?

578

What Avro offers?

What is tungsten engine in spark?

337

What is Shuffling and Sorting in a MapReduce?

713

why should we use 'filters' in pig scripts?

588

Can you change the block size of hdfs files?

Difference between hive and impala?

774

What is Thrift?

Clarify how ordering in hdfs is finished?

526

What is HDFS High Availability?

1008

What is ColumnFamily?

How to identify that given operation is transformation/action in your program?

301

List the benefits of using Cassandra.

Explain why are replications critical in kafka?

542

For More Un-Answered { Hadoop } Questions Click Here