Sign Up Login


  1. Categories >> Software >> Big Data >> Hadoop
  2. Suggest New Category



Hadoop Interview Questions
Questions Answers Views Company eMail

What is MapReduce?

 1 1362

What MapReduce framework consists of?

 875

Can we submit the mapreduce job from slave node?

 928

How can we control particular key should go in a specific reducer?

 739

How can you add the arbitrary key-value pairs in your mapper?

 1247

What is Reduce only jobs?

 1 1201

What is a IdentityMapper and IdentityReducer in MapReduce ?

 766

Explain Working of MapReduce?

 775

Write a Mapreduce Program for Character Count ?

 831

how to proceed to write your first mapreducer program?

 1138

How to set the number of reducers?

 1180

Developing a MapReduce Application?

 774

Different ways of debugging a job in MapReduce?

 895

Explain the Reducer's reduce phase?

 815

Why do we use HDFS for applications having large data sets and not when there are lot of small files?

 1 2363

Un-Answered Questions { Hadoop }

What are the different CQL data definition commands in Cassandra?

67

What does flatten do in pig?

538

What are the different input sources for Spark Streaming?

264

What is CTE Table in Hive?

563

Which command is used for the retrieval of the status of daemons running the hadoop cluster?

501

Can you explain apache spark?

231

What is partitioning key?

406

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

57

List the benefits of Spark over MapReduce.

243

What is difference between dataset and dataframe?

285

What is the use of truncate command?

149

What is the task of Spark Engine

271

What are Flume events?

87

Can you explain clustering in mahout?

35

What is the difference between an input split and hdfs block?

88

For More Un-Answered { Hadoop } Questions Click Here