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

Apache Hadoop (394)
MapReduce (354)
Apache Hive (345)
Apache Pig (225)

Apache Ambari (93)
Apache HCatalog (34)
Apache HDFS Hadoop Distributed File System (214)
Apache Kafka (189)

Hadoop Interview Questions

Questions Answers Views Company eMail

What is Apache Spark Machine learning library?

335

What is the use of map transformation?

324

Explain the run-time architecture of Spark?

312

List the advantage of Parquet files?

311

Name the Spark Library which allows reliable file sharing at memory speed across different cluster frameworks.

322

Please provide an explanation on DStream in Spark.

295

List the languages supported by Apache Spark?

319

Explain the Parquet File format in Apache Spark. When is it the best to choose this?

378

Explain lineage graph

325

Is the following approach correct? Is the sqrt Of Sum Of Sq a valid reducer?

487

What is Apache Spark and what are the benefits of Spark over MapReduce?

296

What are the cases where Apache Spark surpasses Hadoop?

295

What is the bottom layer of abstraction in the Spark Streaming API ?

809

Which the fundamental data structure of Spark

324

List the advantage of Parquet file in Apache Spark?

470

Un-Answered Questions { Hadoop }

What do you understand by Thrift?

What is regionserver?

181

How can you configure remote metastore mode in Hive?

876

Can you define pagerank?

304

Specify Cassandra’s importance on Facebook?

155

Does HBase support SQL like syntax?

157

What do you understand by the term Straggler ?

738

Is it necessary to learn hadoop for spark?

316

What are the possible Job roles?

Who is intended audience to learn HCatalog?

What is the Data model, and the hierarchical namespace?

What is in memory processing in spark?

290

What is Rack awareness?

1043

What is lineage graph?

472

What is the role zookeeper plays in a cluster of kafka?

529

For More Un-Answered { Hadoop } Questions Click Here