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 is the difference between DSM and RDD?

308

What do you mean by Persistence?

319

How to create a Sparse vector from a dense vector?

357

What are common uses of Apache Spark?

299

In a very huge text file, you want to just check if a particular keyword exists. How would you do this using Spark?

406

How is fault tolerance achieved in Apache Spark?

307

What are the benefits of lazy evaluation?

305

How does Apache Spark handles accumulated Metadata?

349

What is lazy evaluation in Spark?

320

What is the use of checkpoints in spark?

322

How can Spark be connected to Apache Mesos?

330

In how many ways RDDs can be created? Explain.

304

What are the advantages of DataSets?

293

What makes Apache Spark good at low-latency workloads like graph processing and machine learning?

330

Can you use Spark to access and analyse data stored in Cassandra databases?

375

Un-Answered Questions { Big Data }

How does fault tolerance work in mapreduce?

637

What is a "reducer" in Hadoop?

881

What is transformation in spark?

331

What are broadcast variables in spark?

330

What is structured data?

661

Mention what is the number of default partitioner in Hadoop?

703

what is difference between int and intwritable?

1485

What is the use of Bloom Filter in Cassandra?

125

What is the problem with the small file in Hadoop?

655

In mapreduce what is a scarce system resource? Explain?

677

What jobtracker is in hadoop? What are the activities followed by hadoop?

433

Explain the types Of Znodes?

what is NameNode in Hadoop?

889

What are the problems with Hadoop 1.0?

1061

How can you connect an application

1038

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