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 functionalities of jobtracer?

408

How does fault tolerance work in mapreduce?

623

What is a scarce system resource?

651

With the help of two examples name the map and reduce function purpose

636

Write a short note on the disadvantages of mapreduce

598

Explain what you understand by speculative execution

603

Explain combiners.

627

when do reducers play their role in a mapreduce task?

614

In mapreduce what is a scarce system resource? Explain?

666

What do you understand by mapreduce?

645

Explain how mapreduce works.

608

What is an input reader in reference to mapreduce?

620

How is mapreduce related to cloud computing?

657

Define the purpose of the partition function in mapreduce framework

661

What are the various input and output types supported by mapreduce?

628

Un-Answered Questions { Big Data }

What is Mapper in Hadoop MapReduce?

730

What do you understand by the term Straggler ?

684

What do you understand by a closure in scala?

486

Explain the hadoop configuration files at present?

667

What is closing out ledgers?

Is it possible to do an incremental import using Sqoop?

Can you explain about the cluster manager of apache spark?

260

Does spark sql use hive?

273

What is Directed Acyclic Graph in Apache Spark?

396

How to transfer data from Hive to HDFS?

List out the other components of cassandra?

What is broadcast variable?

358

What are the difference between of the “HDFS Block” and “Input Split”?

What are the port numbers of namenode, job tracker and task tracker?

712

Is there any benefit of learning mapreduce if spark is better than mapreduce?

1812

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