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The scenario in the VMware NSX Introduction lab depicts a company ABC who wants to host a web application in the data center. The users/customers of this ABC company access the application remotely.
The web application is a three-tier app with each tier in a different Layer 2 network. The following are some of the key services required for the application
- Load balancer service to provide better application user experience
- Firewall service that protects the three tiers of the application. Web, App and DB servers are protected from each other and from external world through Firewall rules.
- Routing service to provide access across the tiers and to the physical network