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

Is it possible to use Kafka without ZooKeeper?

651

What is the purpose of retention period in Kafka cluster?

662

What are main APIs of Kafka?

639

What is Geo-Replication in Kafka?

871

Explain the concept of Leader and Follower?

599

What do you know about Partition in Kafka?

659

Is Apache Kafka is a distributed streaming platform? if yes, what you can do with it?

631

What ensures load balancing of the server in Kafka?

658

Explain the maximum size of a message that can be received by the Kafka?

721

What is a Consumer Group?

605

If a Replica stays out of the ISR for a long time, what does it signify?

636

Enlist the several components in Kafka?

653

What is Apache Cassandra?

What do you mean by column family in Cassandra?

What is Secondary Index in Cassandra ?

Un-Answered Questions { Hadoop }

When should you use hbase?

181

What is Sqoop?

how is data partitioned before it is sent to the reducer if no custom partitioner is defined in Hadoop?

782

What is the current version of Hive?

766

What are the basic commands in Apache Sqoop and its uses?

What is a udf?

448

What is kafka message?

500

name few other popular column oriented databases like hbase.

203

What are the main features of hdfssite.xml?

What is Cassandra?

What is Apache Avro?

Give me an example of document database ?

476

Explain how indexing is done in hdfs?

List of some best tools that can be useful for data-analysis?

431

How does data transfer happen from hdfs to hive?

148

For More Un-Answered { Hadoop } Questions Click Here