Question 1

One of the first decisions that a new bank needs to make about its network is whether it should be wired or wireless. The bank wants the employees to be mobile within the building but is also very concerned about security. Which kind of network is best for the bank, and why? What additional information, if any, would be helpful in making this decision?

1 answer

In the scenario described, a bank looking for mobility for its employees while also emphasizing security would benefit from a combination of both wired and wireless networks, often referred to as a hybrid network. Here’s why:

Wired Network

  1. Security: Wired networks typically offer greater security compared to wireless networks because they are less susceptible to interception and unauthorized access. In a banking environment, where sensitive financial data is handled, this can be crucial.
  2. Reliability: Wired connections often provide better stability and speed than wireless connections, minimizing latency and maintaining consistent performance for bandwidth-intensive applications.
  3. Control: A wired network allows for tighter control over network access and monitoring.

Wireless Network

  1. Mobility: Wireless networks (Wi-Fi) allow employees to move freely throughout the building, enhancing their productivity and convenience.
  2. Cost and Flexibility: Setting up a wireless network can be less costly and more flexible when it comes to accommodating changes in office layout, as there’s no need for extensive cabling.

Best Approach for the Bank

  1. Secure Wireless Implementation: If the bank chooses to implement a wireless network, they should utilize advanced security protocols such as WPA3, implement a robust firewall, and possibly use a VPN for remote access to ensure data integrity and confidentiality.
  2. Segmentation: The bank could create segmented networks, using a wired network for sensitive operations, while providing a secure, wireless guest network for employees who need mobility. This minimizes the risk of unauthorized access to critical data.

Additional Information Needed

To make a more informed decision, the bank might consider the following:

  • Size and Layout: The physical size and layout of the bank's premises will affect wireless signal strength and coverage.
  • Number of Users: Understanding how many employees will require access and what types of applications they will be using can guide the decision on bandwidth needs.
  • Compliance Requirements: Specific regulations regarding data security (such as PCI DSS for financial institutions) that dictate certain network security measures.
  • Existing Infrastructure: Information about existing IT and network infrastructure can influence whether it’s more viable to enhance current capabilities or to invest in new solutions.
  • Budget Constraints: The available budget for either infrastructure could heavily sway the decision toward wired or wireless solutions.
  • Future Growth Plans: Any plans for expansion or technological upgrades that might require a different setup in the near future.

Conclusion

Combining wired and wireless networks while prioritizing security measures, utilizing the right technology, and understanding the specific needs of the bank will help create a robust and secure network that supports employee mobility without compromising customer data security.

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