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 do you understand by Executor Memory in a Spark application?

456

Is Apache Spark a good fit for Reinforcement learning?

282

What is Catalyst framework?

275

What do you understand by Pair RDD?

375

How can you launch Spark jobs inside Hadoop MapReduce?

308

How can you compare Hadoop and Spark in terms of ease of use?

270

Which one will you choose for a project –Hadoop MapReduce or Apache Spark?

292

What do you understand by Lazy Evaluation?

358

How can you remove the elements with a key present in any other RDD?

285

How Spark uses Hadoop?

290

What is a DStream?

321

What are the various data sources available in SparkSQL?

323

Explain about the core components of a distributed Spark application?

278

What are the benefits of using Spark with Apache Mesos?

274

What are the common mistakes developers make when running Spark applications?

274

Un-Answered Questions { Hadoop }

What is ganglia is used for in ambari?

Name few companies that are the uses of apache spark?

287

What does a 'MapReduce Partitioner' do?

650

Explain the level of parallelism in spark streaming?

283

What do you mean by Speculative execution in Apache Spark?

276

Is it possible to add 100 more nodes when we already have 100 nodes in Hive?

1212

Explain the difference between nas and hdfs?

Can spark work without hadoop?

314

When you point a partition of a hive table to a new directory, what happens to the data?

710

Features of Kafka Stream?

486

What is hotspotting in hbase?

167

What combiners is and when you should use a combiner in a MapReduce Job?

589

What is Spark MLlib?

391

What is jmx connector?

MapReduce Types and Formats and Setting up a Hadoop Cluster?

886

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