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 the function of "MLlib"?

320

Define "PageRank".

305

What is "GraphX" in Spark?

319

Name types of Cluster Managers in Spark.

329

Which file systems does Spark support?

309

What is RDD Lineage?

426

Name commonly-used Spark Ecosystems

328

What is the difference between persist

365

What is Immutable?

350

What operations RDD support?

325

Is there any benefit of learning MapReduce, then?

305

What does MLlib do?

278

Define RDD?

337

What is an "RDD Lineage"?

315

List the various types of "Cluster Managers" in Spark.

359

Un-Answered Questions { Hadoop }

What is Replication Factor in Cassandra?

What are the the issues associated with the map and reduce slots based mechanism in mapReduce?

692

Why do we need sparkcontext?

316

How can you configure remote metastore mode in Hive?

879

What are the different types of partitioners in cassandra? Explain.

What are the main features and Characteristics of Hadoop which makes it the most popular and powerful Big Data tool?

533

What are brokers in kafka?

550

How does gossip protocol help in failure detection?

Can rdd be shared between sparkcontexts?

302

What are the different modes in which we can configure/install Hadoop?

585

What is write ahead log(journaling)?

321

What are the various programming languages supported by Spark?

371

what are the different modes of Hive?

744

What is CONCATENATE command in Hive?

972

Explain the difference between nas and hdfs?

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