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

Big Data Interview Questions

Questions Answers Views Company eMail

Name job control options specified by mapreduce.

708

What is heartbeat in hdfs?

646

What is difference between an input split and hdfs block?

657

How do reducers communicate with each other?

667

How does inputsplit in mapreduce determines the record boundaries correctly?

648

How will you submit extra files or data ( like jars, static files, etc. ) For a mapreduce job during runtime?

657

What main configuration parameters are specified in mapreduce?

677

How do you stop a running job gracefully?

607

Is it necessary to write a mapreduce job in java?

628

What is shuffling and sorting in mapreduce?

642

What is the function of mapreducer partitioner?

616

What is partitioner and its usage?

690

What are the important differences between apache and hadoop?

705

Is there any point of learning mapreduce, then?

646

While processing data from hdfs, does it execute code near data?

Un-Answered Questions { Big Data }

What do you mean by replication strategy?

Is spark streaming real time?

285

What is the maximum size of string data type supported by hive? Mention the hive support binary formats.

666

Explain some important features of hadoop?

447

what do you mean by the worker node?

312

Write a quert to import a file in sqoop?

What are the befefits of nosql over relational database?

Name some best features of Ambari?

What is the sequence of execution of Mapper, Combiner, and Partitioner in MapReduce?

851

What are the ways in which Apache Spark handles accumulated Metadata?

353

How can I install Cloudera VM in my system?

958

Who developed Apache Avro?

What are the functionalities of jobtracker?

672

Explain Erasure Coding in Hadoop?

504

Why Ambari?

200

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