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 are shared variables in spark?

275

What is the future of apache spark?

263

How can I improve my spark performance?

261

What is apache spark architecture?

299

Why spark is faster than hive?

287

What happens if rdd partition is lost due to worker node failure?

436

What is pair rdd in spark?

261

What is difference between cache and persist in spark?

253

Is bigger than spark driver maxresultsize?

282

Does spark use java?

303

How do you process big data with spark?

257

What is a spark shuffle?

307

Why do we need apache spark?

256

How do I optimize my spark code?

286

What is the difference between client mode and cluster mode in spark?

295

Un-Answered Questions { Big Data }

How hadoop mapreduce works?

591

Why scala is used in spark?

302

Explain Spark Driver?

310

How does a namenode handle the failure of the data nodes?

634

Explain various level of persistence in Apache Spark?

281

Explain why do we need hadoop?

614

Why Flume?

170

What are the relational operators available related to loading and storing in pig language?

594

Suppose that your data is stored in collections, for instance, some binary data, message data or metadata is all keyed on the same value. Will you use HBase for this?

154

How Hive organize the data?

669

What is sqoop in Hadoop ?

638

How can we see all the hosts that are available in Ambari?

Define big data analytics?

467

What is a block and block scanner in HDFS?

977

What is ng in flume?

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