Moving content database & creating web application on new server farm

Scenario:

There are situations where you want to propagate one SharePoint web application to some other farm/machine.  

The fastest way is to take content database backup and restore it in your destination farm.

Pre-requisites:
So you have your content database backup.

Creating content database from backup:
Go to your database server and do following:

• Create a blank database that will be used as content database
• Restore a database using content database back up from source farm.

Creating a web application:

• Go to sharepoint central administration and create a new web application
• While creating a new web application, use existing content database in database section

Validating the web application:

• Go to sharepoint central administration, click on application management. In "Databases" section you will find "Manage content databases"
• Choose your application and it will show database status and number of site collections. If you are not sure how many site collections are there in backup, anything greater than 0 is good news.

Configure web application to work properly:

• Go to sharepoint central administration

• Click on "Application Management"
• In "Site Collections" section click on "Change site collection administrators"
• choose your web application set proper data in site admins.

Cheers!!!