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

Big Data Interview Questions

Questions Answers Views Company eMail

List some commonly used Machine Learning Algorithm Apache Spark?

291

What is the command to start and stop the Spark in an interactive shell?

313

List out the ways of creating RDD in Apache Spark?

289

What are the various advantages of DataFrame over RDD in Apache Spark?

307

What is flatmap in apache spark?

326

What is the standalone mode in spark cluster?

266

Explain apache spark streaming? How is the processing of streaming data achieved in apache spark?

306

In what ways sparksession different from sparkcontext?

339

Explain fold() operation in spark?

307

Define sparkcontext in apache spark?

313

List out the various advantages of dataframe over rdd in apache spark?

305

What is map in apache spark?

277

Write the command to start and stop the spark in an interactive shell?

272

Define various running modes of apache spark?

282

What are the ways to run spark over hadoop?

312

Un-Answered Questions { Big Data }

What is spark ml?

350

What is throughput in HDFS?

Explain HBase Architecture in brief?

200

Define a worker node?

455

How do I start a spark master?

287

What is Apache Zookeeper Meant For?

What happens to job tracker when namenode is down?

668

In HDFS, how Name node determines which data node to write on?

How does hadoop achieve fault tolerance?

416

What is an rdd?

308

What are the various modes in which Spark runs on YARN? (Local vs Client vs Cluster Mode)

270

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

what is a sequence file in Hadoop?

675

What are the actions in spark?

273

What is spark reducebykey?

268

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