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?

614

What is the purpose of retention period in Kafka cluster?

621

What are main APIs of Kafka?

607

What is Geo-Replication in Kafka?

832

Explain the concept of Leader and Follower?

552

What do you know about Partition in Kafka?

608

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

590

What ensures load balancing of the server in Kafka?

621

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

677

What is a Consumer Group?

566

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

609

Enlist the several components in Kafka?

603

What is Apache Cassandra?

What do you mean by column family in Cassandra?

What is Secondary Index in Cassandra ?

Un-Answered Questions { Hadoop }

What is lineage graph?

437

Can we change the file cached by distributed cache

393

List some difference between flume and kafka?

441

what is the default replication factor in HDFS?

974

UPPER or UCASE function in Hive with example?

751

Do I need to learn scala for spark?

295

Is it possible to add or delete column families in a working group?

What is RDD in Apache Spark? How are they computed in Spark? what are the various ways in which it can create?

297

How hdfs is different from traditional file systems?

Differentiate between piglatin and hiveql?

530

did you maintain the hadoop cluster in-house or used hadoop in the cloud?

967

What is Sqoop Job?

What is document store db? Explain with an example.

What is JPS? Why is it used in Hadoop?

477

What does the high availability of a name-node means?

399

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