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?

663

Define streaming?

662

What is keyvaluetextinputformat?

741

Define a commodity hardware? Does commodity hardware include ram?

752

Explain the hadoop configuration files at present?

669

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

732

Explain why the name ‘hadoop’?

717

Define a combiner?

656

Explain the master class and the output class do?

658

Explain the features of stand alone (local) mode?

624

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

694

What is structured data?

659

Define streaming access?

675

Define fault tolerance?

665

What do sorting do?

691

Un-Answered Questions { Big Data }

What are the additional benefits YARN brings in to Hadoop?

967

How to write a query in Cassandra?

104

What is nlineoutputformat?

683

Explain how indexing is done in hdfs?

What is Cassandra Query Language?

In which kind of scenarios MapReduce jobs will be more useful than PIG in Hadoop?

645

What is the design architecture of Cassandra?

What is pig statistics?

535

What are the main features of impala?

Differentiate HDFS & HBase?

Explain the architecture of Hadoop Pig?

761

Name different types of primary keys in Cassandra?

What happens when two users try to access to the same file in HDFS?

What is prepare() method in Cassandra?

Explain about the replication and multiplexing selectors in Flume?

100

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