Big Data Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Big Data Interview Questions

Questions Answers Views Company eMail

How is dag created in spark?

289

What does spark do during speculative execution?

331

What is heap memory in spark?

265

What is external shuffle service in spark?

299

What is spark client?

277

Which are the various data sources available in spark sql?

297

Can you run spark without hadoop?

322

What is tungsten engine in spark?

318

What is stage and task in spark?

227

What is spark execution engine?

371

Is spark sql a database?

263

Is spark distributed computing?

298

What is row rdd in spark?

287

How is rdd fault?

284

How does reducebykey work in spark?

255

Un-Answered Questions { Big Data }

List the relational operators in pig.

629

A number of combiners can be changed or not in MapReduce?

650

Define Node?

201

HCatalog helps to Integrate Hadoop with everything. Explain?

What is streaming access?

495

What is the purpose of dfsadmin tool?

1246

What are the optimization techniques in spark?

282

Can you modify the file present in hdfs?

If the hadoop administrator needs to make a change, which configuration file does he need to change?

442

Replication causes data redundancy then why is is pursued in HDFS?

How can you implement machine learning in Spark?

279

What is the function of UNION and SPLIT operators? Give examples?

532

Why Hadoop MapReduce?

665

Define a namenode?

662

What is spark code?

315

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