Just like Ethernet transportation which supports an ethernet frame and IP transportation which supports IPv4/6 headers, wireless has its own header and frame format. An 802.11 Frame carries traffic from one wireless device to another device over the wireless network. An 802.11 frame is commonly referred to as a MAC (Media Access Control) frame. A…

Besides functioning as an WAP (Wireless Access Point) that just provides wireless access to client devices, APs are able to have different types of functions in addition to this. These are:  WGB- WGB (Workgroup Bridge) is a wireless configuration in which an AP becomes a wireless client to connect a group of wired devices such…

Today I am going to talk about the structure of wireless networks such as SSID (Service Set Identifier), BSS (Basic Service Set), and ESS (Extended Service Set.)  SSID- An SSID (Service Set Identifier) is the name of a wireless network that a user sees when they scan for available WiFi connections/networks on their devices. An…

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…