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?

304

What is the future of apache spark?

280

How can I improve my spark performance?

286

What is apache spark architecture?

317

Why spark is faster than hive?

304

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

456

What is pair rdd in spark?

287

What is difference between cache and persist in spark?

275

Is bigger than spark driver maxresultsize?

296

Does spark use java?

323

How do you process big data with spark?

281

What is a spark shuffle?

334

Why do we need apache spark?

274

How do I optimize my spark code?

306

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

320

Un-Answered Questions { Big Data }

Can we deploy job tracker other than name node?

680

Name the components of hdfs and yarn respectively

585

What is the default value of map and reduce max attempts?

932

What are the three characteristics of big data according to ibm?

489

While writing evaluate UDF, which method has to be overridden?

578

What is kerberos secured cluster in apache pig?

705

What do you understand by Data Replication in Cassandra?

What is Map() operation in Apache Spark?

364

What are the uses and applications of mahout ?

Explain different transformation on DStream?

284

Explain the uses of PIG?

984

What is the difference between HDFS and NAS ?

1372

What is the maximum number of rows in a table?

Mention Hive default read and write classes?

758

What is metadata storage service in bookkeeper?

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