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

Big Data Interview Questions

Questions Answers Views Company eMail

Does spark sql use hive?

295

What is the default spark executor memory?

292

What is the difference between coalesce and repartition in spark?

333

What does rdd mean?

333

How does groupbykey work in spark?

311

What is tungsten in spark?

425

What is the difference between dataframe and dataset in spark?

306

What is an accumulator in spark?

316

What is apache spark used for?

330

What is the difference between spark and scala?

372

What is accumulators and broadcast variables in spark?

339

Does spark run hadoop?

314

What is coalesce in spark sql?

329

What are the features of spark rdd?

308

What is cluster mode in spark?

331

Un-Answered Questions { Big Data }

How to use Apache Zookeeper command line interface?

1205

Can you explain accumulators in apache spark?

330

How to create database statement in apache tajo?

Define Actions.

320

what is next step after mapper or maptask?

462

What is the difference between structured and unstructured big data?

567

What is kafka topic?

585

State some advantages of impala?

How many maps are there in a particular job?

506

Is it possible to add or delete column families in a working group?

What is a RecordReader in Hadoop MapReduce?

726

If you run hive as a server, what are the available mechanism for connecting it from application?

935

What is Distributed Cache in Hadoop?

507

How hdfs is different from traditional file systems?

What are the benefits of setting up a local repository?

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