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 create an rdd?

287

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

421

What is a metastore in hive?

662

What do you mean by metadata in Hadoop?

Explain the concept of bloom filter?

List out Hadoop's three configuration files?

564

What is the purpose of dfsadmin tool?

1206

What does rdd stand for in logistics?

297

What are apache tajo sql functions?

Define tasktracker.

613

What are pig scripts?

557

What is difference between scala and spark?

301

How to configure hadoop to reuse JVM for mappers?

1175

What is big data lake?

427

What is the role of CQLSH?

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