I'm working on a networking case study and need an explanation and answer to help me learn.
Please read the given scenario below and There will be 4 sections, for section 2 and section 3 you have to use ""CISCO PACKET TRACER"" latest version
Scenario Description
DFS (Digital Finance Services) Network security attacks can result in financial cost and compromised availability. If a small business is targeted with security attack, it could create a lack of trust among employees and customers, forcing them to switch to a more prominent brand name they think can provide better security. A recent survey showed that 37% of small businesses in UK have lost customers and 17% have lost revenue due to downtime, proving that security should be now a number one agenda for small businesses. DFS (Digital Finance Services) is a well-established small finance service provider, which offers online finance solutions and services to its clients. DFS has the following four departments within its main headquarter Human resource (HR), Information Technology So far DFS was using third party services to maintain its IT services. However, as the business is expending rapidly. The senior management has decided to own their own network infrastructure including Local Area Network (LAN), Wide Area Network (WAN) and an external Server-Side location connected via appropriate WAN technology with prioritizing secure communication between HR department and external site. The server-side site will host DNS, WEB and EMAIL servers. Due to security requirements, it has been decided that all four departments will be on a separate network segment within the same local area network. None of the server is located within the local area network but will be hosted from external site accessible via WAN connection. The network security policy will comprehensively dictate the user access to external site using Access Control LIST (ACL). You have been hired as network security engineer to design the network for DFS according to the requirements set by the senior management. You will consult appropriate robust network design model to meet the design requirements. You will also implement Access Control Lists and Virtual Private Network to enable secure communication considering security and network performance factors paramount to safeguard Confidentiality, Integrity and Availability of data and communication.
Section 1 (Research) – 1200 Words (30 Marks)
For network design, there is no one "good network design," and there is certainly no "one size fits all." A good network design is based on many concepts, some of which are summarized by key general principles: Critically appraise network design principles to achieve performance, scalability, and security at different layers of the Open Systems Interconnection (OSI) model.
Section 2 (Design) – 800 Words (20 Marks)
For a given scenario, students are required to design, configure, and troubleshoot network using virtual equipment and simulate topologies, connections, protocols and implement configuration using the appropriate simulator application. Design and configuration evidence should be included in the report as a walkthrough snippet. Note: The below marking criteria will apply and must be included to meet all the practical implementation requirements in this section:
Section 3 – Evaluation – 800 Words (20 Marks)
Critically evaluate your design implementation effectiveness in terms of access control, user privileges, and effective use of IPsec VPN, hardening the devices, security features of hardware devices such as switches and routers. Note: The below marking criteria will apply and must be included to meet all the practical implementation requirements in this section:
Section 4 – Ethical Considerations – 1200 Words (30 Marks)
Computer security designers should act in a professional manner and show due diligence to comply with legal obligations particularly related to CIA. Critically discuss what social and ethical considerations to be addressed to protect the proposed network design from any cyber threats.
Note: You may use the Code of Conduct of the British Computer Society (available at
http://www.bcs.org), or to read General Data Protection Regulation contains (GDPR) guide available
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