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?

464

What is a rack?

470

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

563

We have already sql then why nosql?

481

What is difference between reducer and combiner?

623

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

480

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

483

What is pseudo-distributed mode?

656

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

534

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

531

Are job tracker and task trackers present in separate machines?

509

What is namenode?

527

what if job tracker machine is down?

525

What are the four basic parameters of a mapper?

624

In which location name node sores its metadata and why?

713

Un-Answered Questions { Big Data }

What is keyvaluetextinputformat?

774

What is anti-entropy and how is it associated with merkel tree?

What is the use of illustrate in pig?

566

Why Mapreduce output written in local disk?

1070

Can you define serde in hive?

736

Does this lead to security issues?

775

What is ZooKeeper Client?

What is memtable?

110

How do I download adobe spark?

389

State syntax of the command that is used to drop a partition?

State the difference between Spark SQL and Hql

367

What is Hadoop Map Reduce ?

861

What is the function of HMaster?

279

Is dataframe immutable?

492

What is the relationship between Jobs and Tasks in Hadoop?

661

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