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Learn how to troubleshoot several common notebook computer issues. Power Issues Notebook power issues often stem from their prolific use of lithium-ion batteries, which are prone to overheating and swelling. While these issuers have mostly been resolved, it's ...

Learn what virtualization does and how to use it. Traditional computing models grant control of the hardware's resources and devices over to the OS, and while that does grant blazingly fast performance speeds, it's inefficient. Most of the computer's hardware ...

Time-consuming, detailed recordkeeping of organizational IT-related equipment. As part of asset management, always know: Exactly what you own How much it costed And by extension, the cost to replace it How long you've owned it If you're in compliance with ...

Learn the termination standards used by the internet backbone infrastructure, internet providers, and businesses. Patch Cables Patch cables use the same wire configuration on each connector end. T568A Wires are arranged from pins 1-8 in each connector in the ...

what if i have four small ip addresses instead of one big overkill one Classless Interdomain Routing is an addressing mechanism that allows for more complexity in address assignment within a network. It uses bits normally assigned to the Network ID in an IPv4 ...

there are a lot of ways to shout at people nodes unicast vs broadcast vs anycast vs multicast Casting Method Who are we yelling at? How? Group Address Unicast One specific node - - Broadcast Everyone in the broadcast domain - ff:ff:ff:ff:ff:ff last IP...

but what if i was special...? Each OS has their own way of setting up a static IP address for their host system using their terminal. *The most universal way to edit IP configurations on Linux distributions is to edit text files containing the configuration v...

packets are complicated kinda maybe somewhat Ethernet only runs at OSI Layer 1 and Layer 2, so it has no idea about logical networking and all the stuff behind that. The Internet Protocol runs in Layer 3, providing logical network addressing and forwarding. IP...

network protocols define the shape of data being transmitted Network protocols have two main parts: addressing and encapsulation. Addressing describes when and where data is sent, and encapsulation handles how that data is packaged for interpretation, comparab...

yelling at nodes but in mandarin a foreign language now Unicast addressing in IPv6 also refers to a single network interface, just like in IPv4. However, IPv6 addressing is scoped, meaning addresses can refer to a portion/region of the network. Global scoping ...

i need them both, but on a single network Most networks run both IPv4 and IPv6 in some or all segments for connectivity and internetworks. This can be works using dualstack hosts, tunneling, or address translation. Dual Stack Dualstack hosts are able to run bo...

what if i had a gps but for packets >:) Most hosts on a network don't have the necessary capabilities on their NICs to perform routing. This is why each network has a device, aptly called a router, to do that job for it. Routing Table Entries Information on ho...

i need multiple gps apps for some reason Dynamic routing protocols implement algorithms that use information about the network's topology and metrics to build packet forwarding routes. When there are multiple paths available, it chooses one over the rest. Info...

how home network routers work Every home has a SOHO router provided by an ISP that links the LAN to the WAN. Physical Layer Functions The router provides Layer 1 functions, such as a set of RJ45 ports for a local cabled network a set of radio antennae for rec...

the International Organization for Standardization came together one day The official documentation for the OSI model can be found here. The OSI model splits the hardware and software functions that enable data transmission between computer systems into seve...

everyone knows the plug, but not everyone else Star Topology is used most commonly in small LAN networks and SOHO networks due to it's simplicity, easy troubleshooting and easy configuration, since all necessary changes can be made at the switch or router. Any...

how big? how wide? where? Network sizes are determined by the number of connected hosts, while it's scope is the size of the area where the hosts share the same network address. There are two main types of networks, LAN Networks and WAN Networks.

physical layout vs logical layout Physical topology refers to the placement of nodes and what type of transmission media connects them to the network. Logical topology refers to the flow of data through the network. Networks that have different physical topolo...