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

Big Data Interview Questions

Questions Answers Views Company eMail

How is dag created in spark?

273

What does spark do during speculative execution?

310

What is heap memory in spark?

247

What is external shuffle service in spark?

283

What is spark client?

269

Which are the various data sources available in spark sql?

282

Can you run spark without hadoop?

310

What is tungsten engine in spark?

309

What is stage and task in spark?

210

What is spark execution engine?

345

Is spark sql a database?

248

Is spark distributed computing?

282

What is row rdd in spark?

283

How is rdd fault?

268

How does reducebykey work in spark?

247

Un-Answered Questions { Big Data }

Does the archiving of hive tables give any space saving in hdfs?

872

What are the main key structures of hbase?

165

How is hadoop related to the big data? Describe its components?

461

How one can format Hadoop HDFS?

What is a block and block scanner in HDFS?

987

What are the prime features of apache zookeeper?

Can you define pagerank?

271

Define the term Column Families?

What is output format in hadoop?

658

How will you submit extra files or data ( like jars, static files, etc. ) For a mapreduce job during runtime?

625

Explain the Differences between Hive and Spark SQL?

670

Explain what is hbase?

148

Clarify what jobtracker is in hadoop? What are the activities followed by hadoop?

400

What are the modes in which Hadoop run?

466

What is the role of JDBC driver in Sqoop?

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