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

Which database is used in hadoop?

524

What is metastore?

688

Is kafka a amqp?

561

Is kafka a message queue?

597

What are the advantages of kafka?

626

What is the benefit of kafka?

543

What is the difference between kafka and mq?

552

Where is kafka used?

572

What does rdd stand for?

473

Is spark used for machine learning?

299

What is difference between rdd and dataframe?

367

What is javardd?

303

Why are spark transformations lazy?

310

How many ways can you create rdd in spark?

342

Can we install spark on windows?

356

Un-Answered Questions { Hadoop }

How much memory is required?

What is tungsten engine in spark?

337

Explain what is a consumer group?

592

Explain HCatalog Create Table CLI along with its syntax?

What is shuffling and sorting in Hadoop MapReduce?

683

How to set the number of reducers?

1424

What is Safemode in Apache Hadoop?

781

How does the Pig platform handle relational systems data?

583

How do I use spark with big data?

312

Define “speculative execution” in hadoop?

476

What are core components of Flume?

104

Specify the partitions in hive?

697

Explain Data Type Conversion in Hive?

766

What is the purpose of JConsole?

It can be possible that a Job has 0 reducers?

1013

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