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

Big Data Interview Questions

Questions Answers Views Company eMail

Define the term ‘Lazy Evolution’ with reference to Apache Spark

306

What are the benefits of Spark lazy evaluation?

322

State the difference between Spark SQL and Hql

359

Can I run Apache Spark without Hadoop?

291

Please explain the sparse vector in Spark.

286

Explain Spark Driver?

336

Is there any API available for implementing graphs in Spark?

308

Please enumerate the various components of the Spark Ecosystem.

396

What is the role of Spark Driver in spark applications?

324

Name three companies which is used Spark Streaming services

328

Explain the default level of parallelism in Apache Spark

315

Explain the process to trigger automatic clean-up in Spark to manage accumulated metadata.

310

Can You Use Apache Spark To Analyze and Access Data Stored In Cassandra Databases?

306

What is Spark SQL?

308

Can you explain how to minimize data transfers while working with Spark?

539

Un-Answered Questions { Big Data }

Mention the common features in Pig and Hive?

921

What is the difference between Apache Pig and Hive?

617

Why should we use presto?

Illustrate some demerits of using Spark.

320

Define MapReduce?

699

What is Combiner in Hadoop?

540

Explain first() operation in Apache Spark RDD?

370

What is Output Format in MapReduce?

704

What is lazy evaluation in Spark?

320

Can you explain ingestion in big data?

574

What do you mean by ss table?

What is worker node in Apache Spark cluster?

300

What do you mean by schema on reading?

728

How does a log flume work?

How to keep files in HDFS?

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