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 the core components of hadoop?

661

Define streaming?

660

What is keyvaluetextinputformat?

733

Define a commodity hardware? Does commodity hardware include ram?

747

Explain the hadoop configuration files at present?

667

Explain the difference between gen1 and gen2 hadoop with regards to the namenode?

729

Explain why the name ‘hadoop’?

708

Define a combiner?

650

Explain the master class and the output class do?

652

Explain the features of stand alone (local) mode?

615

Name the examples of some companies that are using hadoop structure?

691

What is structured data?

653

Define streaming access?

673

Define fault tolerance?

654

What do sorting do?

685

Un-Answered Questions { Big Data }

What is dag – directed acyclic graph?

300

What are the ways to create RDDs in Apache Spark? Explain.

306

Specify Cassandra’s importance on Facebook?

153

What do you understand by Data Replication in Cassandra?

Whether Pig Latin language is case-sensitive or not?

659

List various commonly used machine learning algorithm?

373

What is the default block size in Hadoop 1 and in Hadoop 2? Can it be changed?

1328

How is reporting controlled in hadoop?

782

What is Input Split in hadoop?

981

What is the stable version of Hive ?

2629

State syntax of the command that is used to drop a partition?

How to perform the inter-cluster data copying work in HDFS?

Explain edge nodes in hadoop?

441

what is gossip protocol?

How to overwrite an existing output file/dir during execution of Hadoop MapReduce jobs?

625

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