Sorted:

What is the role of the NameNode in Hadoop?

What are the functionalities of Groovy in Java?

How does HBase handle redundant backups of data?

What are the main features of Hadoop?

What are the applications of LINQ in C#?

What is the function of atan2 in C++?

How to replicate table structure and indexes in db2?

What are the advantages of using Linq?

How can I view detailed information about an index in DB2?

What is the method called in Groovy for calling Java?