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 are the independent extensions that contributed to the ambari codebase?

Is ambari python clients can be used to make the good use of ambari api’s?

Can you explain recommendation engine?

Can you explain difference between apache mahout and apache spark’s mllib?

Can you explain how it is different from doing machine learning in r or sas?

Can you explain clustering in mahout?

What are the machine learning algorithms supports in apache mahout?

115

Can you briefly explain the apache mahout?

Can you define parquet file?

298

Can you explain benefits of spark over mapreduce?

310

Can you define yarn?

306

Can you explain broadcast variables?

318

What do you know about transformations in spark?

304

Can you explain spark mllib?

301

Can you explain spark graphx?

305

Un-Answered Questions { Hadoop }

What is driver and executor in spark?

328

Why should I use spark?

319

What is NameNode? How NameNode tackle Datanode failures in Hadoop?

505

What is the difference between CREATE TABLE AND CREATE EXTERNAL TABLE?

746

What is the difference between Cassandra and Hadoop ?

Explain bagtostring in pig?

596

What is apache spark written in?

287

What kind of music is flume?

How does hdfs give great throughput?

Why Hadoop MapReduce?

715

Why can we not create directory /user/dataflair/inpdata001 when name node is in safe mode?

488

What are the various data sources available in SparkSQL?

351

Can you explain the term, Cassandra?

110

How to transfer data from Hive to HDFS?

Which are the various data sources available in spark sql?

304

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