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 an "Accumulator"?

283

Compare Spark vs Hadoop MapReduce

330

What operations does the "RDD" support?

299

What is a "Spark Driver"?

338

Define functions of SparkCore?

501

What is the function of "MLlib"?

308

Define "PageRank".

286

What is "GraphX" in Spark?

298

Name types of Cluster Managers in Spark.

309

Which file systems does Spark support?

288

What is RDD Lineage?

417

Name commonly-used Spark Ecosystems

309

What is the difference between persist

351

What is Immutable?

332

What operations RDD support?

310

Un-Answered Questions { Big Data }

Define speculative execution?

715

Why aggregation cannot be done in Mapper?

560

What is distinct clause in apache tajo?

What does the high availability of a name-node means?

427

is it posible to join multiple fields in pig scripts?

528

What are the difference between of the “HDFS Block” and “Input Split”?

What is spark checkpointing?

292

What happens to existing data in my cluster when I add new nodes?

230

What are the four basic parameters of a mapper?

567

What makes Apache Spark good at low-latency workloads like graph processing and machine learning?

328

What are possible types of Channel Selectors?

103

Does spark use yarn?

258

Is hadoop required for data science?

684

What is a commodity hardware? Does commodity hardware include RAM?

515

What is driver memory and executor memory in spark?

326

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