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 apache spark works?

314

Can you explain worker node?

415

What do you know about schemardd?

328

Can you explain spark rdd?

304

Can you define rdd lineage?

296

What is the role zookeeper plays in a cluster of kafka?

531

Can kafka be utilized without zookeeper?

563

When not to use apache kafka?

574

What is a partitioning key?

604

How to start a kafka server?

659

What are the core apis in kafka?

644

What is replication in kafka?

543

What is a broker?

555

Elaborate kafka architecture?

561

What is an offset?

538

Un-Answered Questions { Hadoop }

Hadoop sqoop is which type of tool?

What is the problem in having lots of small files in hdfs?

What are the other components of Cassandra?

What is Combiner in Hadoop?

575

What kind of applications is supported by Apache Hive?

860

Explain what is composite type in cassandra?

What is broadcast variable?

385

Is a log flume a roller coaster?

What is the benifit of Distributed cache, why can we just have the file in HDFS and have the application read it?

Why hbase is a schema-less database?

184

Can we have different replication factor of the existing files in hdfs?

What is the full form of MSLAB?

231

How to write 'foreach' statement for map datatype in pig scripts?

704

For a job in Hadoop, is it possible to change the number of mappers to be created?

834

Explain what does hbase consists of?

167

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