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 ways to launch Apache Spark over YARN?

298

is it necessary to install Spark on all nodes while running Spark application on Yarn?

331

What is a worker node in Apache Spark?

312

What is worker node in Apache Spark cluster?

318

What is action, how it process data in apache spark

353

What is sparkContext?

303

Name various types of Cluster Managers in Spark.

354

How much faster is Apache spark than Hadoop?

309

Difference between groupByKey vs reduceByKey in Apache Spark?

485

How you can use Akka with Spark?

384

Name three features of using Apache Spark

300

How to start and stop spark in interactive shell?

362

To use Spark on an existing Hadoop Cluster, do we need to install Spark on all nodes of Hadoop?

370

How will you connect Apache Spark with Apache Mesos?

287

how will you implement SQL in Spark?

395

Un-Answered Questions { Big Data }

How does hdfs give great throughput?

What is configured in /etc/hosts and what is its role in setting Hadoop cluster?

590

What is the difference between cassandra's schema and rdbms schema?

Is spark sql a database?

279

Explain the term paired RDD in Apache Spark?

421

What is difference between map and flatmap?

310

If data is present in HDFS and RF is defined, then how can we change Replication Factor?

In Hadoop, which file controls reporting in Hadoop?

834

What are the advantages of datasets in spark?

296

Highlight the difference between group and Cogroup operators in Pig?

912

What is inputformat in hadoop?

803

What features from relational databases or hive are not available in impala?

What do you mean by meta information in hdfs? List the documents related to metadata.

What is the difference between pig and hive?

763

What types of costs are associated in creating index on hive tables?

885

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