Big Data Interview Questions
Questions Answers Views Company eMail

Which company initially developed Hive ?

1 566

What is column families? What happens if you alter the block size of ColumnFamily on an already populated database?

181

What are the components of Hive architecture?

274




What is HDFS Federation?

166

What are watches?

155

Explain the Job OutputFormat?

199

Virtual Box & Ubuntu Installation?

135

What is the difference between HDFS and NAS ?

453

How Mapper is instantiated in a running job?

221

Where do you specify the Mapper Implementation?

154

What is the meaning of speculative execution in Hadoop? Why is it important?

213

What is the InputFormat ?

174

Command to format the NameNode?

130

Who is a 'user' in HDFS?

157

What is the meaning of the term "non-DFS used" in Hadoop web-console?

387







Un-Answered Questions { Big Data }

What is a MapReduce Combiner?

38


Can we submit the mapreduce job from slave node?

360


What is a "map" in Hadoop?

47


What is HDFS Federation?

166


What are different modes of execution in Apache Pig?

180






If you run hive as a server, what are the available mechanism for connecting it from application?

52


What is Hive ?

139


What do the four V's of Big Data denote?

41


Name some of the important tools useful for Big Data analytics?

42


is HQL case sensitive?

52


What does illustrate do in Apache Pig?

152


How can one increase replication factor to a desired value in Hadoop?

305


Who is a 'user' in HDFS?

157


What are the two main components of ResourceManager?

139


What is the problem with HDFS and streaming data like logs

176