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

Explain bagtotuple?

579

How do you write comments in pig scripts?

545

What is a tuple in pig?

547

What is interactive mode in apache pig?

537

What are the execution modes in the apache pig?

510

What is the use of illustrate in pig?

520

When to use hadoop, hbase, hive and pig?

535

Explain tokenize?

589

What are pig scripts?

586

Are pig scripts support distributed file systems?

538

How do you run pig scripts on kerberos secured cluster?

545

What is the primary purpose of the pig in the hadoop architecture?

2726

What is the difference between pig and hive?

720

Explain hbasestorage function?

601

Explain hive udf function?

532

Un-Answered Questions { Hadoop }

What is spark vectorization?

315

How the read operation is performed on Cassandra node ?

102

Explain textloader function?

655

Is it necessary to install spark on all the nodes of a YARN cluster while running Apache Spark on YARN ?

344

In which scenario Hive is good fit?

981

Explain pigstorage function?

600

Does hadoop install spark?

290

Is it possible to use same metastore by multiple users, in case of embedded hive?

659

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

345

What are the components of presto architecture?

How does gossip protocol help in failure detection?

What happens if you get a ‘connection refused java exception’ when you type hadoop fsck /?

454

What does producer api in kafka?

490

Write a short note on the disadvantages of mapreduce

600

Explain the master class and the output class do?

652

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