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

Discuss the various running mode of Apache Spark?

310

Describe Spark SQL?

358

Explain SparkContext in Apache Spark?

344

What are the types of Transformation in Spark RDD Operations?

292

Explain first() operation in Apache Spark RDD?

402

What are the ways in which Apache Spark handles accumulated Metadata?

370

Explain the various Transformation on Apache Spark RDD like distinct(), union(), intersection(), and subtract()?

311

Is it possible to run Apache Spark without Hadoop?

293

What is Apache Spark Streaming?

345

How can you implement machine learning in Spark?

295

List some commonly used Machine Learning Algorithm Apache Spark?

299

What is the command to start and stop the Spark in an interactive shell?

329

List out the ways of creating RDD in Apache Spark?

299

What are the various advantages of DataFrame over RDD in Apache Spark?

323

What is flatmap in apache spark?

340

Un-Answered Questions { Hadoop }

What purpose would an engineer use spark?

420

What is the task of Spark Engine

340

What is Grunt shell?

616

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

283

Compare rdbms with hbase?

148

What are the various InputFormats in Hadoop?

690

Explain the maximum size of a message that can be received by the Kafka?

758

How to invoke Command Line Interface?

How many ways we can create rdd in spark?

309

What is the purpose of DataNode block scanner?

1012

What is pair rdd?

307

What is project tungsten in spark?

312

What is apache spark good for?

295

Why apache spark is faster than hadoop?

403

How do users interact with the shell in apache pig?

574

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