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 difference between scala and spark?

315

What is apache spark sql?

301

What is spark reducebykey?

268

Do I need scala for spark?

292

Is spark built on top of hadoop?

315

What exactly is apache spark?

297

Where is spark rdd?

272

What is spark yarn executor memoryoverhead?

370

Is apache spark worth learning?

306

What is spark mapvalues?

284

Why is spark fast?

295

Does diesel engine have spark plug?

353

Is spark faster than hadoop?

356

What is spark job?

344

What is the default partition in spark?

288

Un-Answered Questions { Big Data }

Is there another way to check whether Namenode is working?

403

Explain keys() operation in Apache spark?

334

Can you give us some more details about ssh communication between masters and the slaves?

703

What are the default read and write classes in Hive?

658

What are the main properties of hdfs-site.xml file?

How would you use Map/Reduce to split a very large graph into smaller pieces and parallelize the computation of edges according to the fast/dynamic change of data?

694

What port does spark use?

315

Explain the Constituents of Apache ZooKeeper Architecture?

Mention what are the main configuration parameters that user need to specify to run mapreduce job?

731

What is graph db? Explain with an example.

How to set up local repository manually?

Which method is used to access HFile directly without using HBase?

205

Does google use hadoop?

672

What do you understand by logging in cassandra?

Can you define rdd lineage?

278

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