Big Data Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Big Data Interview Questions

Questions Answers Views Company eMail

Explain the term HCatalog?

Why HCatalog?

How to create and manage a view in HCatalog?

Explain Alter Table Statement in HCatalog?

How can we drop a table in HCatalog?

Which command do we use to insert data in HCatalog?

Explain HCatalog Architecture in Brief?

HCatalog helps to Integrate Hadoop with everything. Explain?

Explain how HCatalog enables right tool for right Job?

Explain HCatLoader and HCatStorer APIs?

Explain Drop View Statement along with syntax?

State some command line options?

Explain HCatOutputFormat?

What are the general Prerequisites to learn HCatalog?

How HCatalog helps to capture processing states to enable sharing?

Un-Answered Questions { Big Data }

How to load data into table created in hive ?

695

How to set mappers and reducers for MapReduce jobs?

635

What are Apache Spark, Flume, Lucene, Hama, HCatalog, Mahout, Drill, Crunch and Thrift?

622

What are the difference between of the “HDFS Block” and “Input Split”?

Explain about tajo worker configuration?

What is MapFile?

964

What is identity mapper and chain mapper?

669

Can you explain how you can use Apache Spark along with Hadoop?

309

Replication causes data redundancy and consume a lot of space, then why is it pursued in hdfs?

What is azure spark?

295

Does spark need yarn?

242

What is the difference between SQL and NoSQL?

1077

What is Pig Latin?

590

What are the different types of primary key?

What is use of tools command?

194

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