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

What do you understand by Commit log in Cassandra?

What is the Use of Cassandra Database ?

100

Name the types of tunable consistency?

What is the History of Cassandra Database ?

What is the Virtual Node in Cassandra ?

What is the main objective of creating Cassandra?

108

What is Replication Factor in Cassandra?

Define the consistency levels for read operations in Cassandra?

Name some features of Apache Cassandra?

How to iterate all rows in ColumnFamily?

What is a column family in Cassandra?

Name different types of NoSQL database?

What is SSTable?

Define data replication?

What is the Cassandra Coefficient ?

Un-Answered Questions { Hadoop }

What is a cell in hbase?

190

Is secondary namenode a substitute to the namenode?

718

UPPER or UCASE function in Hive with example?

857

What is the difference between store and dumps commands?

700

What is Geo-Replication in Kafka?

915

What is zookeeper server?

How many types of rdd are there in spark?

322

Why is jconsole used? What is it’s different elements?

What happens if there is an error in impala?

259

Explain the functionality of object-inspector.

778

What does flatten do in pig?

773

What is coalesce in spark sql?

329

Define Writable data types in MapReduce?

711

What is the meaning of compaction in hbase?

169

What is troubleshooting for impala?

For More Un-Answered { Hadoop } Questions Click Here