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Big Data Interview Questions
Questions Answers Views Company eMail

What are the different pig data types?

 438

Explain about the different complex data types in Pig?

 397

What is a relation in Pig?

 449

Explain the difference between COUNT_STAR and COUNT functions in Apache Pig?

 497

How should 'store' keyword is useful in pig scripts?

 421

What is the use of having Filters in Apache Pig ?

 445

How to write 'foreach' statement for map datatype in pig scripts?

 388

What are the basic steps to writing a UDF Function in Pig?

 444

What are the various diagnostic operators available in Apache Pig?

 451

What is a bag in Pig Latin?

 590

What are the different Relational Operators available in pig language?

 438

What are the different ways of executing Pig script?

 411

Explain the LOAD keyword in Pig script?

 395

What is a MapFile?

 431

Name the scalar data type and complex data types in Pig?

 419

Un-Answered Questions { Big Data }

What is Directed Acyclic Graph(DAG)?

217

What is fluming?

106

Explain what is a Hive variable. What do we use it for?

462

Explain about tajo worker configuration?

5

What is the difference between Cassandra and Hadoop ?

55




What is keyvaluetextinputformat?

399

Can you define a combiner?

193

What are the main components of hadoop?

221

Is hive similar to sql?

414

What role does worker node play in Apache Spark Cluster? And what is the need to register a worker node with the driver program?

220

How to change the column data type in hive? Explain rlike in hive.

419

Clarify how ordering in hdfs is finished?

246

Is spark difficult to learn?

192

Mention how many inputsplits is made by a hadoop framework?

292

What is shuffle in spark?

276

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