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

Big Data Interview Questions

Questions Answers Views Company eMail

Explain in brief what is the architecture of Spark?

1 329

What is Spark DataFrames?

1 302

In how many ways can we use Spark over Hadoop?

1 353

Explain Machine Learning library in Spark?

1 305

Explain about transformations and actions in the context of RDDs.

1 366

Explain the difference between Spark SQL and Hive.

1 404

Explain Catalyst framework?

1 375

What are the downsides of Spark?

1 380

What is the need for Spark DAG?

1 323

What is broadcast variable?

1 387

Why does the picture of Spark come into existence?

1 326

How can we launch Spark application on YARN?

1 448

Explain catalyst query optimizer in Apache Spark?

1 331

What are the various modes in which Spark runs on YARN? (Local vs Client vs Cluster Mode)

1 291

Apache Spark is a good fit for which type of machine learning techniques?

1 302

Un-Answered Questions { Big Data }

What is the function of UNION and SPLIT operators? Give examples?

578

How do I set up flume agent?

What is the roadmap for apache mahout version 1.0?

How to set property in apache tajo?

Explain how RDDs work with Scala in Spark

355

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

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

518

When to choose "External Table" in Hive?

847

List the advantage of Parquet file in Apache Spark?

474

What is the stable version of Hive ?

2673

Give me the examples of Columnar database ?

641

When we are using queries instead of scripting?

778

What is the latest version of spark?

288

How can I delete the above index named index_bonuspay?

777

How can you import only a subset of rows from a table?

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