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 does the mapred.job.tracker command do?

486

Is it possible to rename the output file, and if so, how?

514

What are the Hadoop features extended to its eco-system components ?

492

What is job tracker in Hadoop?

551

What sorts of actions does the job tracker process perform?

485

What are the main components in Hadoop Eco-System and what are their functions ?

536

Name the most common Input Formats defined in Hadoop? Which one is default?

505

What is the block size in Hadoop?

480

Can you give some examples of Big Data?

531

After the Map phase finishes, the Hadoop framework does 'Partitioning, Shuffle and sort'. Explain what happens in this phase?

530

What is streaming in Hadoop?

475

What is a commodity hardware? Does commodity hardware include RAM?

566

What is streaming access?

546

How can you set an arbitrary number of Reducers to be created for a job in Hadoop?

515

Give examples of some companies that are using Hadoop structure?

485

Un-Answered Questions { Big Data }

How many compaction types are in HBase?

187

Explain how do ‘map’ and ‘reduce’ work?

655

How can you avoid importing tables one-by-one when importing a large number of tables from a database?

Can you explain about the cluster manager of apache spark?

280

What is a Seed Node in Cassandra ?

How much space will the split occupy in Mapreduce?

731

What language is apache kafka written in?

588

What is Rack awareness?

1059

How is Ambari different from ZooKeeper?

How does cassandra perform read operation?

What does spark do during speculative execution?

348

How is the option in Hadoop to skip the bad records?

992

Name some Big Data products?

627

how to proceed to write your first mapreducer program?

1437

Which is the reliable channel in Flume to ensure that there is no data loss?

135

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