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

Explain the rudimentary difference between Cassandra and HBase?

Is HDFS utilized in Cassandra? If yes, where?

Elaborate on Identifiers?

124

What are keywords?

Explain the fundamental difference between Cassandra and Hadoop?

228

There seem to be certain management tools in Cassandra. What are they?

126

Specify Cassandra’s importance on Facebook?

155

Tunable consistency is supported by Cassandra. Explain.

Are Cassandra, Hadoop, Hbase and Cassandra are the same in nature? Specify.

Explain the term Cluster?

114

Explain what is logging in Cassandra?

What is HDFS?

Why HDFS?

How to Delete file from HDFS?

How to keep files in HDFS?

Un-Answered Questions { Hadoop }

How to use 'foreach' operation in pig scripts?

598

Define Cassandra?

What is executor in spark?

326

What are complex data types in pig?

638

Say when to pick “inward table” and “outside table” in hive?

751

What are combiners and its purpose?

978

What are the usage of different consistency levels for write operations ?

How does Mappers run method works?

943

Can you explain bloommapfile.

501

Highlight the difference between group and Cogroup operators in Pig?

908

What is dataframe api?

336

Explain the master class and the output class do?

691

How tasks are created in spark?

299

What are the key differences between cassandra and traditional rdbms?

Why is sqoop is used?

For More Un-Answered { Hadoop } Questions Click Here