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

Define Partition in Apache Spark?

326

How many types of Transformation are there?

328

How you can remove the element with a critical present in any other Rdd is Apache spark?

325

What is Sparse Vector?

358

Is it possible to run Spark and Mesos along with Hadoop?

285

What is DataFrames?

386

Discuss writeahead logging in Apache Spark Streaming?

344

How can data transfer be minimized when working with Apache Spark?

308

What do you mean by Speculative execution in Apache Spark?

314

Explain about the different cluster managers in Apache Spark

353

Explain Spark Executor

296

Explain the level of parallelism in Spark Streaming? Also, describe its need.

347

What are the various storages from which Spark can read data?

358

What is a Sparse Vector?

356

What is the difference between Caching and Persistence in Apache Spark?

337

Un-Answered Questions { Hadoop }

How do I try impala out?

What are the disservices of utilizing Apache Spark over Hadoop MapReduce?

676

How do I get better performance with spark?

309

What is the difference between spark ml and spark mllib?

308

What are the benefits of block transfer?

1038

What is the point of apache spark?

301

Explain cap theorem?

105

Where the mapper's intermediate data will be stored?

686

Which directory does hadoop install to?

534

What is LazyOutputFormat in MapReduce?

732

How many types of ambari repositories are available?

Is it possible to share data files between different components?

Who created spark?

297

How will you backup an HBase cluster?

149

how Cassandra writes data?

135

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