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?

277

Can you explain benefits of spark over mapreduce?

289

Can you define yarn?

288

Can you explain broadcast variables?

296

What do you know about transformations in spark?

289

Can you explain spark mllib?

287

Can you explain spark graphx?

297

Un-Answered Questions { Hadoop }

What is lineage graph in spark?

289

What are the configuration files in Hadoop?

551

What will be the consideration while we do Hardware Planning for Master in Hadoop architecture?

1084

List the diagnostic operators in pig.

596

What are the functionalities of jobtracker?

680

Does spark use mapreduce?

290

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

430

What is the use of checkpoints in spark?

322

How can one increase replication factor to a desired value in Hadoop?

1127

What does flatten do in pig?

725

how will you implement SQL in Spark?

379

How do users interact with the shell in apache pig?

544

mapper or reducer?

1009

What is a MapFile?

748

Which one would you recommend for hbase table design approach – tall-narrow or flat wide?

329

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