OCU C)ISSO C Discussion Lesson 09

When evaluating the challenges associated with different network topologies, it’s essential to understand the strengths and weaknesses of each. Two widely used topologies star and mesh—present unique challenges to security officers tasked with protecting a company’s information assets.

The star topology is characterized by a central hub or switch to which all devices are connected. Its main challenge lies in its single point of failure: if the central hub is compromised or fails, the entire network is affected. From a security perspective, a security officer must ensure the central hub is heavily fortified against potential threats. This involves implementing robust access controls, ensuring firmware and software updates are applied promptly, and employing intrusion detection and prevention systems (IDPS) at this central point. Additionally, strong physical security controls are critical to prevent unauthorized access to the hub.

On the other hand, the mesh topology provides multiple pathways between nodes, offering greater redundancy and resilience. However, the challenge here is the complexity of managing security across numerous interconnected devices. A security officer must ensure consistent security policies and configurations across all nodes. Implementing endpoint security solutions, such as firewalls and antivirus software, at each device level helps mitigate the risk of a single compromised node affecting the entire network. Regular vulnerability assessments and patch management are also essential to maintain security across this interconnected system.

To minimize the impact of these challenges on the company, the security officer should adopt a proactive approach tailored to each topology. For star topology, focusing on the central hub’s security will safeguard the entire network. For mesh topology, ensuring uniform security measures and constant monitoring of all nodes will help reduce potential entry points for attackers. By understanding the unique vulnerabilities of each topology and addressing them effectively, a security officer can maintain a secure and resilient network infrastructure that minimizes risk to the company.

Two topologies that I would choose would be the Hybrid topology and the Ring topology. The Hybrid topology is a network structure that is known and used to connect the different topologies together in order to create another network structure. For the security officers, they can work through the challenges of a hybrid topology by using or having a consistent security system, they also can and should be working on improving the visibility that they have over the different environments needed and used. The security officers must be able to see clearly and have a clear line of sight over all of their responding resources that are on both, the premises and the cloud. These are both required from the security officers so that they can respond to different threats over the access controls as well as the incident protocol.

Next is the Ring topology and this one is the use and work of connecting different devices together in a circular formation, but each device must be connected to two other devices for this topology to work and function correctly. This topology is also used to transmit the data to go in one direction around the ring until it finally reaches the point at which it needs to be. This kind of topology is also an easier one to use. Security officers can work with the challenges of a ring topology if they focus on the security of each node and also by assuming their data’s encryption. The security officers should also be aware of their data flow that is in a ring topology.