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 relationship between Job and Task in Hadoop?

662

What combiners is and when you should use a combiner in a MapReduce Job?

624

How to set mappers and reducers for Hadoop jobs?

613

What are the data components used by Hadoop?

738

What is the best way to copy files between HDFS clusters?

668

Is it possible to search for files using wildcards?

642

In Hadoop what is InputSplit?

631

What is partitioning in MapReduce?

717

What is the definition of Hive?

732

What is the current version of Hive?

767

Explain about ACID transactions in Hive?

732

Is it possible to change the default location of Managed Tables in Hive, if so how?

719

Is it possible to add 100 more nodes when we already have 100 nodes in Hive?

1264

What is the default database provided by Apache Hive for metastore?

647

What is Buckets in Hive?

745

Un-Answered Questions { Hadoop }

What is Apache Hadoop?

856

What is nagios is used in ambari?

109

What is Cassandra Query Language?

Explain Hadoop Archives?

536

Mention what are the most common input formats defined in hadoop?

442

What are the different levels of persistence in Spark?

340

Pig Features ?

615

What is the full form of MSLAB?

225

What is Distributed Cache?

908

What are some alternatives to apache kafka?

562

How does Mappers run method works?

896

Do I need to know hadoop to learn spark?

340

What is the default extension of the files produced from a sqoop import using the –compress parameter?

How hdfa differs with nfs?

742

Explain SparkContext in Apache Spark?

331

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