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 the FlatMap Transformation in Apache Spark RDD?

303

can you run Apache Spark On Apache Mesos?

328

Describe Partition and Partitioner in Apache Spark?

313

Describe Accumulator in detail in Apache Spark?

330

List down the languages supported by Apache Spark?

298

Discuss the various running mode of Apache Spark?

312

Describe Spark SQL?

362

Explain SparkContext in Apache Spark?

346

What are the types of Transformation in Spark RDD Operations?

296

Explain first() operation in Apache Spark RDD?

402

What are the ways in which Apache Spark handles accumulated Metadata?

370

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

314

Is it possible to run Apache Spark without Hadoop?

295

What is Apache Spark Streaming?

347

How can you implement machine learning in Spark?

297

Un-Answered Questions { Big Data }

Why do we need hdfs?

What is document store db? Explain with an example.

Can hadoop replace relational database?

486

Why Ambari?

200

How will you read and write HDFS files in Hive?

748

What is data ingestion pipeline?

332

What is the difference between Reducer and Combiner in Hadoop MapReduce?

733

What is map/reduce job in hadoop?

680

How many types of Transformation are there?

328

What is the difference between piglatin and hiveql?

709

What is the use of spark driver, where it gets executed on the cluster?

396

What is a disadvantage of using –direct parameter for faster data load by sqoop?

Define Cluster?

113

How does Apache Spark handles accumulated Metadata?

367

How can you control the number of mappers used by the sqoop command?

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