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Hadoop Interview Questions
Questions Answers Views Company eMail

What is heap memory in spark?

 182

What is external shuffle service in spark?

 206

What is spark client?

 189

Which are the various data sources available in spark sql?

 196

Can you run spark without hadoop?

 212

What is tungsten engine in spark?

 216

What is stage and task in spark?

 147

What is spark execution engine?

 200

Is spark sql a database?

 178

Is spark distributed computing?

 212

What is row rdd in spark?

 199

How is rdd fault?

 200

How does reducebykey work in spark?

 179

What is apache spark for beginners?

 193

What is deploy mode in spark?

 208

Un-Answered Questions { Hadoop }

Tunable consistency is supported by Cassandra. Explain.

55

How can we create rdds in apache spark?

192

Explain what is “map” and what is "reducer" in hadoop?

375

what is a Task Tracker in Hadoop?

397

What is bookkeeper?

1




Give examples of the SerDe classes whihc hive uses to Serializa and Deserilize data?

445

What services run after running hbase job?

129

What are the important differences between apache and hadoop?

396

What is the Hadoop MapReduce API contract for a key and value Class?

1014

What is salary of hadoop developer?

390

how you can improve the throughput of a remote consumer?

319

Can you explain rack awareness?

248

Which operating system(s) are supported for production hadoop deployment?

246

Which directory does hadoop install to?

270

What do shuffling do?

379

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