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

Big Data Interview Questions

Questions Answers Views Company eMail

Explain Spark leftOuterJoin() and rightOuterJoin() operation?

306

List out the difference between textFile and wholeTextFile in Apache Spark?

405

What are the exact differences between reduce and fold operation in Spark?

455

Explain countByValue() operation in Apache Spark RDD?

269

Explain Spark countByKey() operation?

327

What is Starvation scenario in spark streaming?

348

Explain the action count() in Spark RDD?

281

Define the run-time architecture of Spark?

286

What are the languages in which Apache Spark create API?

302

What are the features and characteristics of Apache Spark?

291

Explain Spark streaming?

276

Explain first() operation in Spark?

350

Define fold() operation in Apache Spark?

311

Explain reduceByKey() Spark operation?

307

Explain Spark Streaming with Socket?

326

Un-Answered Questions { Big Data }

What is CTE Table in Hive?

762

What is Bucket in Hive?

738

What does secondary name-node means?

437

What do you understand about yarn?

287

What happens if there is an error in impala?

243

What is the use of checkpoints in spark?

322

What is pair rdd in spark?

289

Explain the various Transformation on Apache Spark RDD like distinct(), union(), intersection(), and subtract()?

302

What do you mean by cassandra-cqlsh?

can you explain about configuration files?

What is map in spark?

333

Name job control options specified by mapreduce.

719

Explain InputSplit in Hadoop?

468

Connection between hadoop and big data?

566

What is MapFile?

974

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