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

Big Data Interview Questions

Questions Answers Views Company eMail

What are the default read and write classes in Hive?

658

Hive new version supported Hadoop Versions ?

604

Is multiline comment supported in Hive Script ?

688

What is Implicit Type conversion in Hive?

803

explaine wal in hbase?

173

explain apache hbase?

149

The difference between GROUP and COGROUP operators in Pig?

568

What are the data types of Pig Latin?

565

why should we use 'group' keyword in pig scripts?

559

How Pig programming gets converted into MapReduce jobs?

613

What are the different modes in which PIG can run and explain those?

493

Explain about the execution plans of a Pig Script? Or Differentiate between the logical and physical plan of an Apache Pig script?

604

What are the differences between PIG and MapReduce?

585

What is the logical plan in pig architecture?

569

What is the function of UNION and SPLIT operators? Give examples?

532

Un-Answered Questions { Big Data }

What happens if the preferred replica is not in the isr?

569

What is the way of creating Avro Schemas?

How does lazy evaluation work in spark?

287

Mention Hadoop core components?

657

What is spark shuffle service?

338

Mention what is distributed cache in hadoop?

440

Explain the term paired RDD in Apache Spark?

403

Does cloudera offer a vm for demonstrating impala?

What happens if you get a ‘connection refused java exception’ when you type hadoop fsck /?

454

How Big Data can help increase the revenue of the businesses?

578

Why spark is faster than hadoop?

248

When you should use Hbase?

909

what are the steps involved in decommissioning removing

1015

How can you minimize data transfers when working with Spark?

349

What are the differences between PIG and SQL?

643

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