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 do I download apache mahout?

What is the maximum size of a message that can be received by the kafka?

585

What are the features of kafka?

581

What are the role of kafka producer api plays?

542

What are the benefits of apache kafka over the traditional technique?

1035

When does queuefullexception occur?

686

What is the main difference between kafka and fume?

622

How to start kafka server?

611

What is partitioning key?

589

What is kafka?

599

What are the different components that are available in kafka?

546

How to start zookeeper server?

What is the role of the zookeeper?

Difference between cassandra and mongodb?

What we need to be taken care while adding a column?

102

Un-Answered Questions { Hadoop }

Is a job split into maps?

1078

Describe REVERSE function in Hive with example?

759

Define Writable data types in MapReduce?

712

What is compute and Storage nodes?

1060

Whether the output of mapper or output of partitioner written on local disk?

718

What are the tools you need to build Ambari?

114

What is the importance of .hiverc file?

898

How is Pig Useful For?

669

How to set the number of mappers for a MapReduce job?

752

What is tungsten in spark?

425

When you should use Hbase?

947

What hadoop does in safe mode?

702

What is a Sparse Vector?

356

What is spark in big data?

318

Why should we use ‘distinct’ keyword in Pig scripts?

575

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