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?

349

Does Hoe Spark handle monitoring and logging in Standalone mode?

277

Explain foreach() operation in apache spark?

310

What are the various functions of Spark Core?

332

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

650

Explain the flatMap() transformation in Apache Spark?

310

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

309

What is PageRank in Spark?

274

What are the drawbacks of Apache Spark?

317

Explain textFile Vs wholeTextFile in Spark?

438

Explain benefits of lazy evaluation in RDD in Apache Spark?

316

Explain first() operation in Apache Spark?

299

Explain Spark map() transformation?

362

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

324

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

287

Un-Answered Questions { Big Data }

Name different types of primary keys in Cassandra?

Why are the number of splits equal to the number of maps?

975

What is the history of apache mahout? When did it start?

Is databricks a database?

319

Tell the purpose of Bloom Filter in Cassandra?

213

Define a worker node?

459

Elucidate the concept of cap theorem?

Does kafka use hdfs?

504

Is it possible to overwrite Hadoop MapReduce configuration in Hive?

724

Define Partition in Apache Spark?

314

Who created spark?

293

Is apache spark a framework?

280

What is the replica placement Strategy in Cassandra ?

What are the filters are available in apache hbase?

155

What is spark in big data?

306

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