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 spark driver?

312

What is big data spark?

294

How does lazy evaluation work in spark?

263

What is the use of dataframe in spark?

270

When should you use spark cache?

261

How do I start a spark server?

281

What is executor and driver in spark?

274

Is apache spark an etl tool?

249

What is a spark context?

251

Where is rdd stored?

288

What is apache spark engine?

280

Is hadoop mandatory for spark?

259

What is map in spark?

296

Is spark written in java?

294

How do I start a spark cluster?

279

Un-Answered Questions { Big Data }

How hadoop mapreduce works?

591

Define cell in HBase?

159

What if a namenode has no data?

623

What is the difference betwaeen mapreduce engine and hdfs cluster?

What are the actions in spark?

263

What is Hive Database?

664

What are the different types of Znodes?

938

What is SparkSession in Apache Spark?

271

What are the file formats that Hive supports and can use be used for storage?

822

How to enable recycle bin or trash in hadoop?

647

Clarify the NoSQL Database?

Where are hadoop’s configuration files located and list them?

410

Discuss the various running mode of Apache Spark?

279

How much is flume worth?

What are the different String functions available in pig?

770

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