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 pair rdd?

299

What is data pipeline in spark?

297

What is a spark rdd?

313

What are the optimization techniques in spark?

282

Can you run spark on windows?

295

Why is spark good?

290

Do I need to know hadoop to learn spark?

340

Is a distributed machine learning framework on top of spark?

333

How does hadoop achieve fault tolerance?

416

Is hadoop still in demand?

447

What is winutils hadoop?

430

Is hive a nosql database?

639

Is hive similar to sql?

729

What is difference between hive and hdfs?

629

What is skew data in hive?

698

Un-Answered Questions { Hadoop }

What does FOREACH do?

577

What is graphx spark?

292

What is a primary key? And what are it’s different types?

How data or file is written into Hadoop HDFS?

What is identity mapper and chain mapper?

669

Is Pig script case sensitive?

608

Name some Primitive types of Data types, Avro Supports?

Where is spark used?

367

What is the significance of cluster class in Cassandra?

Explain the use of tasktracker in the hadoop cluster?

633

What is coarsegrainedexecutorbackend?

289

What is the difference between an inputsplit and a block?

630

Why does my insert statement fail?

Describe SPM?

what do you mean by the worker node?

310

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