adspace


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


Big Data Interview Questions
Questions Answers Views Company eMail

What is a IdentityMapper and IdentityReducer in MapReduce ?

 1 1048

Explain Working of MapReduce?

 1 1081

Write a Mapreduce Program for Character Count ?

 1 1146

how to proceed to write your first mapreducer program?

 1 1504

How to set the number of reducers?

 1 1472

Developing a MapReduce Application?

 1 1083

Different ways of debugging a job in MapReduce?

 1 1209

Explain the Reducer's reduce phase?

 1 1166

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

 1 2897

What are the functions of NameNode?

 1 2114

How to configure hadoop to reuse JVM for mappers?

 1 1291

mapper or reducer?

 1 1107

How to resolve IOException: Cannot create directory

 1 1131

Does Pig support multi-line commands?

 1 1003

How to change replication factor of files already stored in HDFS?

 1 1086

Un-Answered Questions { Big Data }

What is a Hive variable? What for we use it?

881

What is the roadmap for apache driver version one.0?

80

Can We Change settings within Hive Session? If Yes, How?

859

Can free-form SQL queries be used with Sqoop import command? If yes, then how can they be used?

75

did you maintain the hadoop cluster in-house or used hadoop in the cloud?

1076

Which modes can Hadoop be run in? List a few features for each mode?

542

How to skip header rows from a table in Hive?

907

When to choose "External Table" in Hive?

867

How do I set up flume agent?

144

Where does the data of a Hive table gets stored?

750

What are the different types of tables available in Hive?

767

What is the latest version of spark?

343

What is meant by Transformation? Give some examples.

385

When to use explode in Hive?

832

What is the roadmap for apache mahout version 1.0?

97

For More Un-Answered { Big Data } Questions Click Here