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 is check pointing in hadoop?

474

What does secondary name-node means?

475

What type of data hadoop can handle ?

469

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

470

What does block mean?

479

What do you think about the speculative execution?

479

What did mean by data-node?

467

How to use combiner in hadoop ?

478

List few benefits of spark over map reduce?

314

Can you define rdd?

319

Do you know the comparative differences between apache spark and hadoop?

284

What do you understand about yarn?

307

Name few companies that are the uses of apache spark?

316

Name the operations supported by rdd?

345

Name the languages which are supported by apache spark and which one is most popular?

294

Un-Answered Questions { Hadoop }

Explain some Advantages of Avro?

122

What is HDFS?

What is shark?

299

what is difference between int and intwritable?

1506

How can I delete the above index named index_bonuspay?

766

Does apache flume support third-party plugins?

What is heartbeat in hdfs? Explain.

738

What do you understand by cassandra?

What is map/reduce job in hadoop?

671

What are the various InputFormats in Hadoop?

690

What is the use of mysql connector?

How HDFS helps NameNode in scaling in Hadoop?

How does impala process join queries for large tables?

What is the difference between persist

363

What is Data Log in Kafka?

856

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