Big Data Interview Questions
Questions Answers Views Company eMail

Explain about the scalar datatypes in Apache Pig?

144

Explain the uses of PIG?

140

What are the complex datatypes in pig?

177




What does illustrate do in Apache Pig?

184

What is UDF?

200

What are the different types of UDF's in Java supported by Apache Pig?

205

What is the usage of foreach operation in Pig scripts?

172

How will you merge the contents of two or more relations and divide a single relation into two or more relations?

186

What is the MapReduce plan in pig architecture?

249

What are the advantages of pig language?

185

What are the different execution mode available in Pig?

221

Define Spark Streaming.

56

Hadoop uses replication to achieve fault tolerance. How is this achieved in Apache Spark?

71

What is lineage graph?

104

What are benefits of Spark over MapReduce?

71







Un-Answered Questions { Big Data }

how can we change Replication Factor?

166


What do you understand by an inner bag and outer bag in Pig?

152


mapper or reducer?

170


Explain use cases where SequenceFile class can be a good fit?

203


Does Apache Spark provide check pointing?

82






How multi-hop agent can be setup in Flume?

5


Explain the Reducer's reduce phase?

268


What is the default block size in hdfs?

239


How is reporting controlled in hadoop?

68


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

228


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

429


what is SPF?

671


What Mapper does?

175


How can I install Cloudera VM in my system?

204


What are the steps involved in MapReduce framework?

202