From the course: CompTIA A+ Core 1 (220-1201) Cert Prep
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TCP, UDP, and ICMP
From the course: CompTIA A+ Core 1 (220-1201) Cert Prep
TCP, UDP, and ICMP
- It takes a lot of software and hardware working together to make the internet work. And the challenge we run into is that we have to make stuff that works together, that speaks the same language. So we use the term protocol. A protocol is nothing more than a set of rules that allow different things to work together. For example, I don't care if you have a Windows system or a Mac, or a little camera running around, they can all use IP addressing, because they're all designed to work with the IP protocol. Now, IP is great, but that only gets addresses to individual devices. So we have lots of other protocols. Most of the time when we talk about what the internet is, we use a protocol called TCP/IP. That stands for Transmission Control Protocol Internet Protocol. So really what you're showing here, that slash shows that we have two different protocols working together to help get the data between your systems. Now, the reason we call it TCP/IP is because almost all the data that we…
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Contents
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USB standards9m 53s
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Understanding USB10m 31s
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Configuring USB7m 3s
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Thunder and lightning5m 4s
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Optical media17m 44s
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Readers and scanners6m 27s
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Common peripherals8m 37s
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Webcams and video conferencing3m 32s
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Installing and troubleshooting expansion cards5m 27s
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Understanding DNS10m 42s
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Working with DNS6m 56s
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Windows naming5m 54s
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Working with workgroups7m 18s
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Windows sharing with macOS and Linux6m 58s
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Routers11m 56s
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Basic router configuration11m 42s
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Firewall configuration10m 31s
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Windows Firewall7m 37s
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Port forwarding7m 5s
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Advanced router configuration7m 44s
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Virtual LANs (VLANs)7m 48s
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Network troubleshooting7m 45s
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Beyond the LAN4m 26s
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Internet tiers5m 41s
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Broadband connections11m 4s
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Firewalls and servers5m 56s
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Telnet and SSH6m 39s
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Remote desktop connections5m
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The World Wide Web8m 47s
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File Transfer Protocol (FTP)6m 49s
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Email7m 23s
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Proxy servers7m 27s
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Virtual private networks (VPNs)7m 41s
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Internet of Things (IoT)3m 28s
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Troubleshooting internet connections6m 39s
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Laser printers12m 19s
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Inkjet printers7m 39s
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Impact printers3m 49s
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Thermal printers3m 19s
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Installing a local printer16m 20s
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Sharing printers9m 46s
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Installing wireless and cloud printers10m 50s
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Social engineering13m 17s
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3D printing6m 19s
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