Microsoft developed the concept of workgroups for small networks to work with their naming system. Workgroups are simple and provide no security, but they’re a part of every small Windows network.
- 802.11 is a very old standard, but just because it's old, … that does not mean we are not constantly updating it, … to get it faster and support more systems, … and do better all the time. … Now, the original 802.11 standard … actually defined a networking speed … of about 1 megabit per second. … And nobody ever saw that one and that's okay. … So what we've seen over the years are what we call … extensions to the standard. … They have names like 802.11a or 802.11g or 802.11ac. … So it's still the 802.11 standard, … but they extend the standard to support newer … technologies, faster speeds, able to support more systems. … That type of thing. … Now the A+ exam is going to really hit you hard … on making sure that you know all of the 802.11 … extensions, so let's get'em covered right here. … Now before we get into the individual extensions, … let's get one thing clarified. … The beautiful part of 802.11 is that it's based … on the unlicensed industrial, scientific, and medical bands. …
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- How TCP and IP work together
- Special IP addresses
- Port numbers
- Working with DNS
- Basic and advanced router configuration
- Troubleshooting networks
- Connecting to a Wi-Fi network
- Repairing wireless connections