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?

645

What are the Optimizations a developer can use during joins?

571

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

584

What are the different math functions available in Pig?

560

What is Pig Latin?

636

Tell me about the execution modes of Apache Pig?

579

What is a tuple?

2 1280

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

580

What are the different Eval functions available in Pig?

602

What are the scalar data types in Pig?

641

State the limitations of Apache Pig?

653

Why we use BloomMapFile?

647

What is a skewed join?

647

Define the Use of Pig?

596

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

600

Un-Answered Questions { Big Data }

Explain what happens if you alter the block size of a column family on an already occupied database?

174

Why does hive not store metadata information in hdfs?

Define data integrity?

What do you mean by logging in cassandra?

What is apache spark in big data?

296

What is flatmap in apache spark?

340

Differentiate between static and dynamic cql tables.

Why use hadoop?

481

Does spark use zookeeper?

294

How many ways we can create rdd in spark?

309

How does NameNode tackle DataNode failures?

1208

What is Sqoop Import Mainframe Tool and its Purpose?

What was the design goal of Cassandra?

did you maintain the hadoop cluster in-house or used hadoop in the cloud?

1057

How does reducebykey work in spark?

276

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