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 is next step after mapper or maptask?

428

What is a rack?

419

Do we require two servers for the namenode and the datanodes?

527

We have already sql then why nosql?

422

What is difference between reducer and combiner?

564

What do you understand by standalone (or local) mode?

428

What type of data we should put in distributed cache? When to put the data in dc? How much volume we should put in?

434

What is pseudo-distributed mode?

605

When we send a data to a node, do we allow settling in time, before sending another data to that node?

490

Can we write map reduce program in other than java programming language. How?

503

Are job tracker and task trackers present in separate machines?

462

What is namenode?

482

what if job tracker machine is down?

475

What are the four basic parameters of a mapper?

567

In which location name node sores its metadata and why?

672

Un-Answered Questions { Big Data }

What is a Distributed Cache in Hadoop?

660

Compare apache pig and sql?

566

When is the reducers are started in a MapReduce job?

866

What is a bag in apache pig?

543

What is the difference between HDFS and NAS ?

1372

How to create index statement in apache tajo?

Developing a MapReduce Application?

971

What is the function of mapreduce partitioner?

639

What are some typical functions of Job Tracker?

428

Give some examples of big data?

507

Clarify Memtable?

What is lambda in spark?

309

what Hive query processor does?

669

Why Hadoop MapReduce?

666

What are the disadvantages of using Spark?

309

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