Wipro Interveiw Questions

1) how to use one IP address for 2 sites 
2) how to install Tomcat
3) what is web.xml file
4) how to find how many users are logged into vm in solaris
5) how to find apache version
6) how to fine ant version
7) what is Datasource
8) what is clustering
9) what is Nodemanager
10) How to install JBOSS
11) what is virtuval host
12) what is default port for apache
13) what is default SSL port for Apache
14) what is proxy in Apache