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 are transformations in spark?

329

What is driver and executor in spark?

328

Is spark secure?

297

What is executor memory and driver memory in spark?

298

What is the point of apache spark?

301

What is rdd map?

339

What is faster than apache spark?

296

What is spark training?

300

How many ways we can create rdd in spark?

309

How tasks are created in spark?

299

Is apache spark a tool?

290

What is difference between spark and mapreduce?

295

Who created spark?

297

How is spark fault tolerance?

408

What is cluster in apache spark?

335

Un-Answered Questions { Big Data }

name few other popular column oriented databases like hbase.

208

how is data partitioned before it is sent to the reducer if no custom partitioner is defined in Hadoop?

827

Explain Data Locality in Hadoop?

585

How to remove safemode of namenode forcefully in HDFS?

How much memory is required?

Mention what daemons run on a master node and slave nodes?

516

What is the role of the secondary namenode?

487

What are the various libraries available on top of Apache Spark?

326

Is impala production ready?

What does the "USE" command in hive do?

844

Can you define taskinstance?

581

What is a RecordReader in Hadoop MapReduce?

725

What is the difference between client mode and cluster mode in spark?

345

Can multiple clients write into an HDFS file concurrently in hadoop?

How data is spilt in Hadoop?

699

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