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?

426

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

463

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

440

What is job tracker in Hadoop?

500

What sorts of actions does the job tracker process perform?

421

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

494

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

464

What is the block size in Hadoop?

435

Can you give some examples of Big Data?

474

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

473

What is streaming in Hadoop?

436

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

516

What is streaming access?

497

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

476

Give examples of some companies that are using Hadoop structure?

440

Un-Answered Questions { Big Data }

Explain the Methods Of ZooKeeper class?

What is meant by Transformation? Give some examples.

308

What is the use of spark driver, where it gets executed on the cluster?

370

Does Spark provide the storage layer too?

278

What is network topology strategy?

What does meta-store means in hive?

712

What are the various types of shared variable in apache spark?

293

Define a daemon?

669

How we can check hadoop sqoop installed or not in a system?

Explain foreach() operation in apache spark?

308

Is hadoop a database?

686

What are the basic available commands in Hadoop sqoop ?

964

Is there an update statement?

162

Can you explain how you can use Apache Spark along with Hadoop?

309

Can you define a checkpoint?

468

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