Big Data Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Big Data Interview Questions

Questions Answers Views Company eMail

Mention what is the data storage component used by hadoop?

446

Mention what does the text input format do?

414

Mention what daemons run on a master node and slave nodes?

469

Explain what is namenode in hadoop?

438

Explain what is a sequence file in hadoop?

467

Mention how many inputsplits is made by a hadoop framework?

577

Explain what is jobtracker in hadoop? What are the actions followed by hadoop?

407

Explain is it possible to search for files using wildcards?

478

Explain what is hadoop?

434

Explain what is sequencefileinputformat?

454

Mention how hadoop is different from other data processing tools?

408

Mention what are the most common input formats defined in hadoop?

442

Mention what is rack awareness?

381

Mention what is the difference between an rdbms and hadoop?

424

Mention what are the three modes in which hadoop can be run?

419

Un-Answered Questions { Big Data }

What is the use of dataframe in spark?

288

Give examples of the SerDe classes whihc hive uses to Serializa and Deserilize data?

734

What are the different functions available in pig latin language?

568

What does ISR stand in Kafka environment?

655

What is the difference between Column and SuperColumn?

150

How many Reducers run for a MapReduce job in Hadoop?

590

How can Spark be connected to Apache Mesos?

327

What is the difference between map and reduce?

625

Explain what happens in text format?

573

What is a generic UDF in the hive?

755

How HDFS helps NameNode in scaling in Hadoop?

What are the components of spark?

277

Does Cassandra support ACID transactions?

105

Mention the common features in Pig and Hive?

917

What is Apache Hadoop? Why is Hadoop essential for every Big Data application?

907

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