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

Big Data Interview Questions

Questions Answers Views Company eMail

How to load data in pig?

607

What are the Optimizations a developer can use during joins?

528

Why should we use ‘orderby’ keyword in pig scripts?

528

What are the different math functions available in Pig?

517

What is Pig Latin?

590

Tell me about the execution modes of Apache Pig?

538

What is a tuple?

2 1187

Why should we use ‘distinct’ keyword in Pig scripts?

541

What are the different Eval functions available in Pig?

562

What are the scalar data types in Pig?

605

State the limitations of Apache Pig?

616

Why we use BloomMapFile?

601

What is a skewed join?

613

Define the Use of Pig?

550

Can we say a COGROUP is a group of more than 1 data set?

555

Un-Answered Questions { Big Data }

How data or file is written into HDFS?

Explain what is heartbeat in hdfs?

Name some companies that are already using Spark Streaming?

268

What Are Good Use Cases For Impala As Opposed To Hive Or MapReduce?

600

Can impala do user-defined functions (udfs)?

What if a namenode has no data?

667

List the functions of Spark SQL?

482

What is the disadvantage of spark sql?

369

How should you handle session_expired?

Illustrate some demerits of using Spark.

314

Which database is used in hadoop?

481

What are ‘maps’ and ‘reduces’?

696

How do you handle compression in pig?

561

What is the process to perform an incremental data load in Sqoop?

Explain about the scalar datatypes in Apache Pig?

896

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