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 are the functionalities of jobtracer?

233

How does fault tolerance work in mapreduce?

355

What is a scarce system resource?

383

With the help of two examples name the map and reduce function purpose

361

Write a short note on the disadvantages of mapreduce

356

Explain what you understand by speculative execution

350

Explain combiners.

356

when do reducers play their role in a mapreduce task?

355

In mapreduce what is a scarce system resource? Explain?

390

What do you understand by mapreduce?

369

Explain how mapreduce works.

359

What is an input reader in reference to mapreduce?

356

How is mapreduce related to cloud computing?

342

Define the purpose of the partition function in mapreduce framework

406

What are the various input and output types supported by mapreduce?

362

Un-Answered Questions { Big Data }

What is mandatory while creating a table in cassandra?

What is the problem with small files in Apache Hadoop?

443

What are the benefits/ advantages of Cassandra?

What are the advantages of datasets in spark?

188

What is a record reader?

224

Is apache spark an etl tool?

176

What are the different CQL data manipulation commands in Cassandra?

In MapReduce Data Flow, when Combiner is called?

353

Define durable writes?

How to write a custom partitioner for a Hadoop MapReduce job?

368

What are sink processors?

631

How can we see all the clusters that are available in Ambari?

123

How to overwrite an existing output file during execution of mapreduce jobs?

839

What is spark vs scala?

186

Use of version command in hadoop sqoop?

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