Example of 4-Tier (for N-Tier) Architecture?

Question

Recently a friend of mine asked me about N-Tier architectures and I was able to explain to him about 1, 2 and 3 tier architectures with examples. But I was stuck when I wanted t

Answer 1

An easy example of 4 tier architecture is RMI JDBC Servlet. This involves The client tier The application server for theservlet Rmi server for server program Jdbc server for database