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.

712

What is heartbeat in hdfs?

649

What is difference between an input split and hdfs block?

661

How do reducers communicate with each other?

670

How does inputsplit in mapreduce determines the record boundaries correctly?

652

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

661

What main configuration parameters are specified in mapreduce?

682

How do you stop a running job gracefully?

611

Is it necessary to write a mapreduce job in java?

632

What is shuffling and sorting in mapreduce?

646

What is the function of mapreducer partitioner?

620

What is partitioner and its usage?

695

What are the important differences between apache and hadoop?

712

Is there any point of learning mapreduce, then?

650

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

Un-Answered Questions { Big Data }

How can you store the data in spark?

322

Explain how you can improve the throughput of a remote consumer?

551

What is a Sparse Vector?

332

What is mapper in map reduce?

650

Can you explain combiner?

445

What are the management tools in Cassandra?

Explain is it possible to search for files using wildcards?

481

Where does Spark Driver run on Yarn?

288

How to use Avro?

Explain the LOAD keyword in Pig script?

631

What happens if the preferred replica is not in the isr?

572

Explain JobConf in MapReduce.

818

What is the use of recordreader in hadoop?

421

What is Flume event?

What is spark in big data?

306

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