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 input format, input split & record reader and what they do?

623

How namenode handles data node failures?

524

What is the non dfs used?

555

How can one write custom record reader?

488

Whats the default port that jobtrackers listens ?

479

Do we need to place 2nd and 3rd data in rack 2 only?

443

Is nosql follow relational db model?

467

What are the different clustering in mahout?

What does apache mahout do?

What is the difference between apache mahout and apache spark’s mllib?

What is the roadmap for apache mahout version 1.0?

What is apache mahout?

Mention some machine learning algorithms exposed by mahout?

What are the features of apache mahout?

How can we scale apache mahout in cloud?

Un-Answered Questions { Big Data }

What is a speculative execution in Apache Hadoop MapReduce?

793

Explain about tajo worker configuration?

What are the particular functionalities of Ganglia in Ambari?

What are the key features of HDFS?

How can you use consumer api?

522

Can the name of a view be same as the name of a hive table?

762

Is it possible to change the default location of Managed Tables in Hive, if so how?

719

How many Reducers run for a MapReduce job?

689

Define a datanode?

650

How does broadcast join work in spark?

304

What kind of data warehouse application is suitable for Hive? What are the types of tables in Hive?

724

What is Purpose to Validate in Sqoop?

What does connector api in kafka?

509

How to create hadoop archive?

419

How to write 'foreach' statement for tuple datatype in pig scripts?

610

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