Author: Author: Richard Pateau

Today I am going to be discussing wireless signals and how the environment interferes with wireless communications.  The type of reactions that can happen to a wireless RF signal are:  Reflection- Signal reflection occurs when an RF strikes a large, dense, smooth or conductive surface and bounces in a predictable direction rather than being absorbed…

Today I am going to be discussing wireless fundamentals including radio frequencies, channels and interference. We all are probably used to WiFi and bluetooth devices, but what is really happening under the hood? How is information getting traveling? Wireless, what we know of today as WiFI uses RF signals to transmit information. RF signals are…

SaaS- Software as a Service is an architecture where software applications are hosted and managed by cloud providers and delivered to users over the internet. Instead of installing and maintaining software on individual devices (downloading and consistently updating the app), the user can access the application through a web browser. In a SaaS, the cloud…

Today I will be discussing cloud computing and the services that are offered in a cloud environment. Cloud computing refers to the delivery of cloud computing resources over the internet such as storage, networking, databases and software. This allows users to deploy computing resources on servers that are owned by the cloud provider. There are…

Hi, today I am going to be discussing virtualization specifically on VMs (Virtual Machines), containers and VRF (Virtual Routing and Forwarding.) Virtualization when it comes to networking and IT refers to taking computer resources such as storage, RAM, CPU and virtualizing it. There are a lot of reasons on why to virtualize hardware but one…

Today I am going to be discussing WAN (Wide Area Network) architectures. A WAN is a large-scale telecommunications network that spans large geographic distances and interconnects multiple LANs (Local Area Networks) across cities, regions, countries, and continents. A WAN allows hosts in one private LAN to communicate with hosts in a completely different LAN. When…

Today I will be talking about VPNs which stand for Virtual Private Network. A VPN is a type of WAN technology that allows secure communication over an untrusted network such as the internet, allowing individuals or entire networks to communicate over a shared network safely as if they were on a private network. A public…

Today I am going to be discussing MPLS which stands for Multi Protocol Label Switching. This is a WAN technology used by service providers such as ISPs to forward traffic across large networks efficiently using “labels,” instead of using the traditional method of doing a routing table lookup. These labels are basically instructions to tell…

Today I will be discussing a two-tier topology called “Spine and Leaf.” This is a popular data center topology that uses a “partial mesh” set up to optimize east-west traffic within the network. East-West traffic refers to data communication that occurs between devices, servers, or systems within the same data center, cloud environment, or internal…

Today I will be discussing the “Three Tier Model” and the “Collapsed Core Model.” The three tier design consists of three tiers while the collapsed core is two layers. The collapsed core is used when the costs do not justify having a complex three tier setup and to minimize unnecessary complexity. The functions (layers) that…