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?

1 318

What do you mean by Persistence?

1 334

How to create a Sparse vector from a dense vector?

1 376

What are common uses of Apache Spark?

1 314

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

1 420

How is fault tolerance achieved in Apache Spark?

1 327

What are the benefits of lazy evaluation?

1 321

How does Apache Spark handles accumulated Metadata?

1 369

What is lazy evaluation in Spark?

1 333

What is the use of checkpoints in spark?

1 330

How can Spark be connected to Apache Mesos?

1 348

In how many ways RDDs can be created? Explain.

1 315

What are the advantages of DataSets?

1 311

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

1 347

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

1 394

Un-Answered Questions { Big Data }

How do I set up flume agent?

How to set property in apache tajo?

List the advantage of Parquet file in Apache Spark?

474

When to use explode in Hive?

803

How can you set an arbitrary number of Reducers to be created for a job in Hadoop?

518

What is the roadmap for apache driver version one.0?

What is the latest version of ambari that is available in the present market?

How can I delete the above index named index_bonuspay?

777

What is meant by Transformation? Give some examples.

328

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

1059

How to skip header rows from a table in Hive?

872

What is the latest version of spark?

288

Can free-form SQL queries be used with Sqoop import command? If yes, then how can they be used?

Give me the examples of Columnar database ?

641

When we are using queries instead of scripting?

778

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