BN223 - Cyber Security Principles & The Topology of A Network With Data Center - IT Assignment Help

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Part A description: 

Topic - infrastructure can be limited to one location or, widely distributed, including branch locations and home offices. Access to the infrastructure enables the use of its resources. Infrastructure access controls include physical and logical network design, border devices, communication mechanisms,  and host security settings. Because no system is perfect, access must be continually monitored; if suspicious activity is detected, a response must be initiated. 

•  The Call center shows two file servers, one application server, and a database server that is connected together directly and diagonally. The file server on the left is connected to two laptops and the file server on the right is connected to a telephone. The application server is connected to two servers on the right and left and to a switch.  
• The Branch consists of a file server that is connected to a laptop, telephone, and to a switch that is further connected to a credit card reader at the top and to a server on the right, and to a  database server at the bottom.  
•  The Warehouse consists of a file server that is connected to a laptop and a telephone at the top,  an application server at the bottom that is further connected to a database server at the bottom.  The database server of the call center, branch, and warehouse are connected to the two database servers of the data center.  
•  The data centers are connected to two application servers directly and diagonally. The application servers are connected to two database servers at the bottom and to a firewall on the right that is further connected to a switch. The application servers are connected to the "POS  Application" consisting of a set of two servers that are connected to each of the application  servers. Each server is again connected to the "Identity and Authentication System" consisting of two application servers on the right and two servers on the left. The two application serves on the left and right are connected to two servers. The switch at the top is connected to a service provider that is further connected to acquiring banks.

king from the inside out, network segments include the following types: 

Enclave network: A segment of an internal network that requires a higher degree of protection.  

Trusted network (wired or wireless): The internal network that is accessible to authorized users.  

Semi-trusted network, perimeter network, or DMZ: A network that is designed to be  Internet-accessible. Hosts such as web servers and email gateways are generally located in the  DMZ.  

Guest network (wired or wireless): A network that is specifically designed for use by visitors to connect to the Internet.  

 Untrusted network: A network outside your security controls. The Internet is an untrusted network. 

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