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

Big Data Interview Questions

Questions Answers Views Company eMail

Why is Transformation lazy in Spark?

348

Does Hoe Spark handle monitoring and logging in Standalone mode?

276

Explain foreach() operation in apache spark?

308

What are the various functions of Spark Core?

332

What is the job of blend () and repartition () in Map Reduce?

639

Explain the flatMap() transformation in Apache Spark?

310

What is RDD lineage graph? How does it enable fault-tolerance in Spark?

307

What is PageRank in Spark?

272

What are the drawbacks of Apache Spark?

317

Explain textFile Vs wholeTextFile in Spark?

432

Explain benefits of lazy evaluation in RDD in Apache Spark?

313

Explain first() operation in Apache Spark?

299

Explain Spark map() transformation?

354

What are the types of transformation in RDD in Apache Spark?

321

Why is transformation lazy operation in Apache Spark RDD? How is it useful?

287

Un-Answered Questions { Big Data }

What is kafka logs?

572

What do you mean by metadata in Hadoop?

How to use Avro?

Is kafka part of hadoop?

513

While processing data from hdfs, does it execute code near data?

when to choose “internal table” and “external table” in hive?

677

Explain the process of spilling in MapReduce?

597

What is the use of “void close()” method?

Can the name of a view be same as the name of a hive table?

759

What do you understand by node in cassandra?

In which language is the Ambari Shell is developed?

What is python spark?

332

Where do you specify the Mapper Implementation?

1017

What is apache flume used for?

Explain HBase Architecture in brief?

200

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