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

Big Data Interview Questions

Questions Answers Views Company eMail

Explain Spark Executor

282

Explain the level of parallelism in Spark Streaming? Also, describe its need.

330

What are the various storages from which Spark can read data?

340

What is a Sparse Vector?

332

What is the difference between Caching and Persistence in Apache Spark?

323

What are the roles of the file system in any framework?

317

Name some companies that are already using Spark Streaming?

268

What is Spark Streaming?

297

What does it mean by Columnar Storage Format?

304

What is Spark Dataset?

329

Why is there a need for broadcast variables when working with Apache Spark?

308

What is the abstraction of Spark Streaming?

265

What are shared variables?

334

Does Spark provide the storage layer too?

280

What are the advantages of datasets in spark?

281

Un-Answered Questions { Big Data }

Define Compaction?

Can kafka be utilized without zookeeper?

519

Where is spark rdd?

274

How can client interact with Hive?

712

Can we submit the mapreduce job from slave node?

1114

Name the filter which accepts the page size as the parameter in hbase?

184

Explain deletion in hbase? Mention what are the three types of tombstone markers in hbase?

144

What is InputSplit and RecordReader?

974

State the difference between Spark SQL and Hql

359

What are the core benefits for hadoop users by using apache ambari?

Are multiline comments supported in Hive?

3291

What is the core of the job in MapReduce framework?

864

When should you use cassandra?

What do you understand by Transformations in Spark?

318

Compare Hadoop and Spark?

327

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