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

Big Data Interview Questions

Questions Answers Views Company eMail

Suppose hadoop spawned 100 tasks for a job and one of the tasks failed. What will hadoop do?

480

Which operating system(s) are supported for production hadoop deployment?

428

Can you explain speculative execution?

418

How do you overwrite replication factor?

444

Can you explain logistic regression?

411

Can you explain combiner?

436

List of some best tools that can be useful for data-analysis?

431

What is the best practice to deploy the secondary name node?

454

What are the tools used in big data?

434

Can you explain indexing?

414

Can you define a checkpoint?

466

Which language is more suitable for text analytics? R or python?

433

Can you explain commodity hardware?

406

How can native libraries be included in yarn jobs?

482

How to do ‘map’ and ‘reduce’ works?

572

Un-Answered Questions { Big Data }

Explain the level of parallelism in spark streaming?

289

Explain about the major libraries that constitute the Spark Ecosystem?

417

Is it important for Hadoop MapReduce jobs to be written in Java?

844

what is Bloom Filter is used for in Cassandra?

114

How apache spark works?

294

Where cassandra stores its data?

Differentiate between Pig Latin and Pig Engine?

846

What is secondary namenode? Is it a substitute or back up node for the namenode?

In Map Reduce why map write output to Local Disk instead of HDFS?

902

When should you use spark cache?

287

What is Directed Acyclic Graph in Apache Spark?

396

What is the spark driver?

324

Mention Hadoop core components?

656

What is a udf?

448

What does rack awareness mean?

411

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