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

Difference between order by and sort by in Hive?

770

What is Internal and External table in Hive?

760

What are the different components of a Hive architecture?

874

Explain how Hive Deserialize and serialize the data?

787

Mention what is ObjectInspector functionality in Hive?

779

Mention what is the difference between Hbase and Hive?

745

What is Clustring in Hive?

781

Mention Hive default read and write classes?

798

what are views in Hive?

805

In Hive, how can you enable buckets?

784

Is it possible to change the default location of a managed table?

779

What is the difference between the external table and managed table?

754

What is Bucketing and Clustering in Hive?

731

How to create table in hive for a json input file?

866

what is the difference between order by and sort by in Hive?

751

Un-Answered Questions { Hadoop }

What is a hive on spark?

313

What are the three types of tombstone markers in hbase?

159

What is a "worker node"?

354

Can I do trforms or add new functionality?

When should you use spark cache?

307

why should we use 'filters' in pig scripts?

594

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

What is Flatten?

600

What are the features and characteristics of Apache Spark?

309

How to submit extra files(jars, static files) for Hadoop MapReduce job during runtime?

684

What are tokens in cassandra?

Explain Spark SQL caching and uncaching?

346

What are barriers?

What happens in text format?

493

Why is there a need for broadcast variables when working with Apache Spark?

323

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