Week 5

  

   

 Difference between cloud computing and colocation

The biggest difference between cloud computing and colocation is who owns and manages the hardware. With cloud computing, you use servers and storage that belong to a cloud provider like AWS or Azure. They handle the physical data center, hardware, power, cooling, and most of the infrastructure work for you. This makes cloud computing very flexible because you can scale resources up or down easily and only pay for what you need, which is great for businesses that want convenience and fast setup.

With colocation, you own the servers yourself but keep them in a third-party data center. The colocation provider gives you the space, power, cooling, and network connection, but you’re responsible for maintaining and managing the hardware. This option gives you more control over your systems, which can be important for organizations with specific performance or compliance requirements. In short, cloud computing is about flexibility and ease of use, while colocation is about control and ownership

Week 4

 

The OSI and TCP/IP models are both used to explain how data moves across a network, and they share the same overall goal: making communication between systems work smoothly. A big similarity is that both models use a layered approach, meaning each layer has a specific job, and both help with troubleshooting and understanding how networks function. They also both include comparable functions like routing, data transmission, and application-level communication, even if they organize them differently.

The main difference is how detailed they are. The OSI model has seven layers, which makes it more detailed and useful for learning, teaching, and troubleshooting specific network issues. In contrast, the TCP/IP model has only four layers, which combine several OSI layers together. Another key difference is usage: OSI is more of a theoretical model, while TCP/IP is a practical model that’s actually used on the internet today. Also, the OSI model clearly separates services like presentation and session layers, while TCP/IP groups those functions into the application layer, making it simpler but less granular.