Hadoop General Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Hadoop General Interview Questions

Questions Answers Views Company eMail

Can you define a checkpoint?

341

Which language is more suitable for text analytics? R or python?

323

Can you explain commodity hardware?

303

How can native libraries be included in yarn jobs?

340

How to do ‘map’ and ‘reduce’ works?

338

Can you explain bloommapfile.

327

Why is checkpointing important in hadoop?

315

What happens when two clients try to access the same file in the hdfs?

338

What do you know about the speculative execution?

288

What are the differences between hadoop 1 and hadoop 2?

309

Why do the nodes are removed and added frequently in a hadoop cluster?

312

What is a namenode?

294

Can hadoop handle streaming data?

326

What is hadoop? Name the main components of a hadoop application?

316

What do you know about yarn?

303

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Un-Answered Questions { Hadoop General }

What are the network requirements for hadoop?

356

What does hadoop-metrics.properties file do?

334

What are some typical functions of job tracker in hadoop?

311

What are the important modes of hadoop?

315

What mode(s) can hadoop code be run in?

316

Mention what is the difference between an rdbms and hadoop?

299

What are configuration files in Hadoop?

302

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

312

What is NameNode? How NameNode tackle Datanode failures in Hadoop?

329

Is Namenode machine same as DataNode machine as in terms of hardware?

323

Define data cleansing?

278

Explain how can you check whether namenode is working beside using the jps command?

317

What is Identity reducer?

313

Is nosql follow relational db model?

341

What is a record reader?

290

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