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

How will you consume CSV file into the Hive warehouse using built SerDe?

807

What is the difference between Hiveserver1 and Hiveserver2?

802

How to Rename a table in Hive

752

What are the advantages and Disadvantages in archieving partition in Hive?

746

When to choose "External Table" in Hive?

805

How to skip header rows from a table in Hive?

821

Where does the data of a Hive table gets stored?

668

Can We Change settings within Hive Session? If Yes, How?

781

What are the different types of tables available in Hive?

697

When we are using queries instead of scripting?

732

When to use explode in Hive?

750

How can I delete the above index named index_bonuspay?

731

What is a Hive variable? What for we use it?

805

What are the components of a Hive query processor?

732

What is CTE Table in Hive?

752

Un-Answered Questions { Hadoop }

What are complex data types in pig?

578

In Hive, how can you enable buckets?

739

When to use secondary indexes?

What are components of Cassandra Data Model?

Can you explain the common input formats in hadoop?

526

How can you execute a free-form SQL query in Sqoop to import the rows in a sequential manner?

Define fault tolerance?

654

Specify the different methods of hive?

723

What is the key difference between textfile and wholetextfile method?

266

What is azure spark?

295

How to optimize Hive Performance?

714

What are mapreduce new and old apis while writing map reduce program?. Explain how it works

651

What do you understand by an inner bag and outer bag in Pig?

852

What is decorating filters?

301

Which spark library allows reliable file sharing at memory speed across different cluster frameworks?

271

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