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 benefits of Spark over MapReduce?

656

What are the disservices of utilizing Apache Spark over Hadoop MapReduce?

639

Why do we need MapReduce during Pig programming?

657

What is difference between a MapReduce InputSplit and HDFS block

692

What is lineage graph in Apache Spark?

353

Different Running Modes of Apache Spark

312

How will you calculate the number of executors required to do real-time processing using Apache Spark? What factors need to be considered for deciding on the number of nodes for real-time processing?

291

List the popular use cases of Apache Spark?

293

What is Spark.executor.memory in a Spark Application?

305

Compare Hadoop and Spark?

326

What is write ahead log(journaling) in Spark?

429

What are Actions?

322

What are the limitations of Spark?

294

What is a reliable and unreliable receiver in Spark?

322

In a given spark program, how will you identify whether a given operation is Transformation or Action ?

347

Un-Answered Questions { Big Data }

How much is flume worth?

Can you use spark to access and analyze data stored in cassandra databases?

309

What is a MapFile?

750

How NameNode tackle Datanode failures in Hadoop?

475

Can you explain bloommapfile.

459

Mention what is the difference between Hbase and Hive?

710

What is a column family?

What is JMX?

219

How to create an rdd?

300

Explain the core components of hadoop?

668

What is apache ambari?

112

Can we have different replication factor of the existing files in hdfs?

What do you mean by meta data in hdfs? List the files associated with metadata.

What are the components of apache ambari architecture?

What are the various types of shared variable in apache spark?

296

For More Un-Answered { Big Data } Questions Click Here