Describe an enterprise or multi-tier application? Provide the description of what makes it more secure than...

Describe an enterprise or multi-tier application? Provide the description of what makes it more secure than a stand-alone application.

Expert Solution

A multi-tier application is any application developed and distributed among more than one layer. It logically separates the different application-specific, operational layers.

Stand alone application implies putting all of the required components for a software application (both the backend and the frontend) on just one server. But having all the resources on the same machine can create an availability and security risk. If the server is down, the application will be down, and it will not communicate with the database. If the server is externally attacked, you are at greater risk of data loss if you do not have a replica of your database.

Multi-tier application solves these problems by splitting data access across more than one server. Having all the resources spread into different servers boosts your deployment performance. In addition to this, having different layers for different resources implies adding an extra security layer by separating data from code. In those applications that include replication, the database can be replicated across more than one server which prevents the loss of data in case of cluster failure.

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