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

Hadoop sqoop word came from?

What are the destination types allowed in sqoop import command?

What are the main methods of data transferring in hadoop sqoop?

Use of version command in hadoop sqoop?

What is hadoop sqoop?

How we can check hadoop sqoop installed or not in a system?

Hadoop sqoop is which type of tool?

Why is sqoop is used?

Use of import command in hadoop sqoop?

What is hadoop pig?

542

What are the different functions available in pig latin language?

582

Explain pig architecture?

554

How does pig work?

606

Why there is need of pig language?

591

What is streaming?

694

Un-Answered Questions { Hadoop }

What is the default level of parallelism in apache spark?

395

How to remove safemode of namenode forcefully in HDFS?

What are the benefits of Spark lazy evaluation?

321

What is the difference between hadoop and other data processing tools?

698

What are the Basics of Hadoop?

939

What do you know about sequencefileinputformat?

638

What is hfile ?

291

Explain the level of parallelism in spark streaming?

293

What are barriers?

What do you understand by node in cassandra?

Explain about the popular use cases of Apache Spark

430

What is the role of recordreader in hadoop mapreduce?

751

What is the difference between store and dumps commands?

674

How to create a custom key and custom value in MapReduce Job?

684

What are the three layers where the hadoop components are actually supported by ambari?

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