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 are the advantages of pig language?

886

What are the different execution mode available in Pig?

1049

Define Spark Streaming.

411

Hadoop uses replication to achieve fault tolerance. How is this achieved in Apache Spark?

408

What is lineage graph?

460

What are benefits of Spark over MapReduce?

453

List the functions of Spark SQL?

481

What is RDD?

483

How to create RDD?

497

Does Apache Spark provide check pointing?

402

Explain about the popular use cases of Apache Spark

426

Do you need to install Spark on all nodes of Yarn cluster while running Spark on Yarn?

649

What are the different String functions available in pig?

815

Differentiate between the physical plan and logical plan in Pig script?

770

What are the use cases of Apache Pig?

798

Un-Answered Questions { Hadoop }

What is spark executor cores?

291

How to handle record boundaries in Text files or Sequence files in MapReduce InputSplits?

698

Does spark work with python 3?

294

Compare Pig vs Hive vs Hadoop MapReduce?

674

What is the difference between apache mahout and apache spark’s mllib?

What is SSTable?

What are the different methods to set up local repositories?

Explain pipe() operation in Apache Spark?

309

What are the different types of nosql databases?

What is Spark Core?

291

What is cluster in Cassandra?

What is Replication Factor in Cassandra?

What does hadoop-metrics.properties file do?

529

How will you write a custom partitioner for a Hadoop job?

452

What is Identity reducer?

520

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