このエピソードについて
If “the internet is down” is the sentence that makes your brain freeze, this guide is for you. We take the pressure off by turning networking into a set of simple ideas you can picture and repeat under stress, the same way you’ll need to think on the help desk and on the CompTIA A+ exam. I walk through what a network is, why businesses rely on it, and how PAN, LAN, and WAN show up in real life, from Bluetooth devices to the internet itself.
From there, we connect the dots across the gear and the settings: what switches do inside a LAN, why routers matter for getting online, how modems talk to your ISP, and what an access point really does for Wi‑Fi. We cover IP addressing with clean examples, the difference between private and public IPs, and how NAT translates between them. Then we hit the “must know” services: DHCP for automatic configuration, DNS for turning names into numbers, and the core ports that show up again and again. I also share a quick help desk story that proves why “never guess, always verify” saves time.
The second half expands beyond networking into the wider set of IT support fundamentals: laptop design and upgrade limits, battery safety, modern connectors like USB‑C power delivery, docking stations, mobile tech like NFC and biometrics, and printer troubleshooting that becomes easy once you understand the printer type and the laser process. We wrap with practical explanations of virtualization and cloud computing, including IaaS, PaaS, and SaaS, plus why the smartest solution is often the right service, not more hardware.
Subscribe for more CompTIA A+ and IT certification study help, share this with a friend who’s studying, and leave a review so more new techs can find the show.
Art By Sarah/Desmond
Music by Joakim Karud
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Juan Rodriguez can be reached at
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And welcome to Technology Tap.
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I'm Professor J Rod.
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In this episode, it's part two of the Company of Study Guide Your Path to IT certification.
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Let's happen.
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And welcome back to Technology Tap, the podcast that helps you build real IT knowledge, not just memorize enough to pass the exam.
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I'm Professor J.
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Rod, and today we're diving into one of the most important topics for every IT professional: network fundamentals.
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Here's something that I tell students the first day of class.
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Today's computers are no longer isolated machines, they are connected devices.
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Whenever you're troubleshooting a printer, setting up a gaming PC, installing Windows, or configuring a cloud application.
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Networking knowledge is essential.
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So we'll cover what a network really is: LANs, WANs, and PAN, switches, routers, IP addresses, et cetera, et cetera.
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So let's get started.
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What is a computer network?
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Let's start with a simple question.
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What is a network?
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A network is simply two or more devices connected so they can communicate and share resources.
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Those resources might include files, printers, internet access, applications, database, and cloud services.
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Think of a network as a highway system.
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Cars represent data, roles represent cables, wireless signals, and traffic signals represent networking rules.
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Without those roads, cars can't travel.
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Without a network, computers can't communicate.
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Imagine working in an office with 100 employees without a network.
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I've done that.
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Everyone would need their own printer.
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Everyone would have separate copies of every file and no share internet, no email, no Teams, no Zoom.
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I lived that life.
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Networks make sharing possible.
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They save money, improve collaboration, increase productivity.
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That's why nearly every business depends on networking.
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Now, Compte expects you to recognize several common network types.
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One is a PAN, a personal area network.
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A PAN covers only a few feet.
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Examples are Bluetooth headphones, smartwatches, wireless keyboards, fitness trackers.
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Think one person's device, that's a PAN network.
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And we got local area network or LAN, the most common network.
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Think of homes, schools, businesses, computer labs, right?
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LANs cover a relatively small geographic area.
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Then we have WANs, wide area network.
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A WAN connects multiple LANs together.
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What is the largest WAN?
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The internet.
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Companies with offices in different cities often connect them through WAN technologies.
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Most networks contain clients and servers.
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Clients request services, the servers provide the services.
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For example, your laptop requests a web page.
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The web server delivers it.
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Your company requests email.
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The mail server responds.
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Your PC requests files, the file server shells them.
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Always remember clients ask and servers answered.
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Let's identify the hardware that you will encounter.
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Switch.
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A switch connects devices inside a LAN.
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Computers, printers, servers, access points.
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The switch forwards data only to intended destination.
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Think of it like a receptionist directing visitors to the correct office.
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A router.
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A router connects different networks.
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Most home routers connect your home to your internet service provider.
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The router determines where traffic should go.
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Without a router, there is no internet.
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You need a router for the internet.
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You cannot get on the internet without a router.
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That's just a switch, unless it is what they call a level three switch.
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Normally a switch would not get you to the internet.
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That's just that's like 101 right there.
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So modem.
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The modem communicates with your ISP.
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You can have a cable modem, fiber modem, DSL modem.
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Some home devices combine the router switch, wireless access point, firewall, and modem into one unit.
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Wireless access point.
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An access point provides Wi-Fi.
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It allows wireless devices to join the wire network.
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Without an access point, wireless devices cannot connect.
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An IP address.
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Every device on a network requires an address.
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Just like every house has a mailing address, computers use IP address.
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Without them, devices wouldn't know where to send information.
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IPv4.
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IPv4 address is like this 192.168.1.10.
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Four numbers separated by periods.
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Each number ranges from 0 to 255.
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Examples include 10.0.0.5, 172.16.10.15, and 192.168.0.25.
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These are private IP ranges commonly found in homes and businesses.
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Now you have public versus private IPs.
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Private IP addresses exist inside your local network.
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And public IPs identify your network on the internet.
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Think of it this way: your apartment number is private, your street address is public.
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The router translates between the two using NAT network address translate translating.
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Now there's one thing I will tell you.
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I mean, it's it's I'm giving you simple explanations, right?
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But you could do a whole deep, deep dive on each topic that I'm giving you.
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Because it's a whole deep dive on public versus private.
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Like we can do a whole I think I have done one years back.
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I may do uh an updated one.
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But yeah, it's it's it's not I'm giving you the the the short person version.
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So all right, next IPv6, IPv6 are limited.
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Eventually, we ran out.
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We're gonna run out of IPs, right?
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Um IPv4 address is limited.
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I mean eventually we're gonna run out.
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IPv6 solves that problem.
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An IPv6 address is very long, right?
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It has a lot of characters, it looks intimidating.
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Fortunately, Camtia mainly wants you to recognize what an IPv6 address is and understand why it exists.
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It exists because we're running out of IPv4.
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That's why.
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No, it supports vastly more addresses than IPv4.
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The reason why we don't have it is there's I think the internet is waiting for a gun to the head kind of moment before they start changing.
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Because what's what is it gonna do?
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What's the one factor that we're not changing over?
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One big factor.
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There's many factors, but one of the biggest factors why we haven't changed to IPv4 or IPv6 is money.
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Right?
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It's gonna take a lot of manpower to change it.
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They haven't, you know, you know, they haven't made a decision how they're gonna do it, they haven't made a decision if they're still gonna keep public or private, you know, all that stuff is it's still up in the air.
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So DHCP.
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Imagine manually assigning addresses to 500 computers, it would take forever.
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That's why we use DHCP, dynamic host configuration protocol.
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DHCP automatically assigns IP address, the subnet mask, the default gateway, and and the DNS server.
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Most home routers include a DA DHCP server.
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Not physically, but inside the router, it takes care of this stuff.
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DNS.
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People remember names, computer remember numbers.
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DNS translates www.google.com into its IP address.
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Without DNS, you have to memorize the IP address for every website.
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Think of DNS as the internet phone book.
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Yeah, you would have to know the address of every web page that you like.
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ESPN, MLB, Google, right?
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All this other stuff.
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Common network ports.
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Comtia loves, loves support questions.
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Here are the ones every technician should know.
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2021 is FTP, 22 is SSH, 23 is Telnet, 25 is SMTP, 53 is DNS, 67 slash 68 is THCP, of course 80 is HTTP, 110 is POP3, 143 is IMAP, 443 is HTTPS, and 3389 is remote desktop.
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Instead of memorizing randomly, group them together by purpose.
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Email, web, remote access networks.
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That makes studying much easier.
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Network cables.
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Let's talk cables.
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Most wired networks use twisted pair Ethernet cables.
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Common categories, Cat5, 6, and 6A.
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Cat5E, 6, and 6A.
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Higher categories support greater speeds, longer distance, and better performance.
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Fiber optics.
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Fiber optics uses light instead of electricity.
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Advantages include very high speed, long distance, and resistance to electric magnetic interference, but it's also more expensive.
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You'll often find fiber connecting buildings or large equipment.
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You have Wi-Fi standards.
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Wireless technology continues to improve.
00:10:59.440 --> 00:11:03.279
You'll encounter Wi-Fi 5, 6, 6E, and 7.
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Each generation improves on speed, capacity, efficiency, and security.
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The CamTIA exam focuses on recognizing the standards, not memorizing every maximum speed.
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2.4 GHz versus 5 GHz.
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2.4 GHz is longer range, more interference, and slower.
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5 GHz is shorter range and less interference.
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And it's much faster.
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Wi-Fi 6E also introduced the 6 GHz ban for supported device, offering even more available spectrum.
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Internet troubleshooting.
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A customer says, My internet isn't working.
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Don't replace the router immediately.
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Ask questions.
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Can other devices connect?
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Are the lights on?
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Can you ping the router?
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Can you ping Google?
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Can you browse websites?
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Can you resolve DNS?
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Troubleshooting is a process.
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Never guess, always verify.
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So here's a help desk story.
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A user calls saying the internet is down.
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After 15 minutes of troubleshooting, I ask one simple question.
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Is it never cable plugged into your computer?
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Silence.
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A few seconds later, oh, it fell out.
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Problem solved.
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The lesson, always start with the simplest explanation before assuming a complex failure.
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Right?
00:12:24.240 --> 00:12:28.240
Oh, you always want to check the super simple stuff.
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That's the Cam T of rule.
00:12:31.120 --> 00:12:37.039
Always check, always look when they ask you the question what will you do first?
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What will you do first?
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Always look for the super simple stuff first.
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Because you're not gonna change the parts without checking if it's all plugged in first.
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Right?
00:12:53.919 --> 00:12:55.360
Alright, let's do a question.
00:12:55.679 --> 00:12:58.000
Which device connects you to local network?
00:12:59.440 --> 00:13:01.759
Which device connects your local network to the internet?
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A switch, B router, C access point, D hub.
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Alright, the answer is router.
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Question two Which service automatically assigns IP address?
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A DNS B F T P C D H T P or D S M T P we know the answer to that because we just went through it is DHCP.
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And which service translates websites names into IP address?
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A DCP, B, DNS, C SSH, or D H C T P?
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And we know the answer is B DNS.
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Question four, which cable uses light instead of electricity?
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A CAT6, B coaxle, C Fiber Optics, and D USB.
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And the answer is C fiber optics.
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Question five, which protocol provides secure web browsing?
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A HTTP, B HTTPS, C FTP, or D Telnet?
00:14:05.919 --> 00:14:10.320
And the answer is HTTPS port 443.
00:14:10.960 --> 00:14:15.759
Now networking questions often include extra information to distract you.
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Focus on the symptoms.
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Ask yourself, is this an addressing problem, a cable problem, a Wi-Fi problem, a DNS issue, DNS or DHCP issue, or is it a hardware issue?
00:14:28.320 --> 00:14:32.639
The best technicians isolate the problem before looking for the solution.
00:14:34.799 --> 00:14:39.919
Networking is one of the core skills that separates a beginner from a confident IT professional.
00:14:40.159 --> 00:14:45.519
The more you understand how devices communicate, the easier troubleshooting becomes.
00:14:46.000 --> 00:14:54.399
If you ever worked at a help disk, chances are you've been asked questions like, My laptop won't charge, or my printer says it's offline, and what's the cloud?
00:14:54.559 --> 00:14:57.759
And can I run Windows and Linux on the same computer?
00:14:58.399 --> 00:15:02.320
Those are exactly the types of problems you'll learn to solve today.
00:15:04.559 --> 00:15:06.240
So why are laptops different?
00:15:06.399 --> 00:15:08.879
Desktop computers are built to be upgraded.
00:15:09.039 --> 00:15:10.480
Laptops are built to be portable.
00:15:10.639 --> 00:15:13.679
The simple design difference changes everything.
00:15:14.000 --> 00:15:20.559
Inside a desktop, you usually have plenty of room, standard components, better airflow, and easier upgrade.
00:15:20.720 --> 00:15:23.200
Inside a laptop, everything is compact.
00:15:23.600 --> 00:15:34.240
Manufacturers squeeze processors, storage, battery, cooling systems, antennas, webcams, speakers, and display into the incredibly small place.
00:15:34.799 --> 00:15:37.679
That means technicians must work more carefully.
00:15:37.919 --> 00:15:43.039
One broken ribbon cable can disable an entire keyboard or display.
00:15:43.840 --> 00:15:54.320
Most laptops contain LCD display, webcam, wireless antenna, keyboard, touchpad, battery, SSD, RAM CPU, cooling fan, speaker, and microphone.
00:15:54.559 --> 00:16:02.320
Unlike desktops, many modern laptops have soldered memory or processors, making upgrades difficult or impossible.
00:16:02.559 --> 00:16:07.360
Always verify upgrade options before recommending additional RAM or storage.
00:16:08.879 --> 00:16:09.840
Laptop batteries.
00:16:09.919 --> 00:16:13.039
Comtia expects you to recognize battery technologies.
00:16:13.200 --> 00:16:17.919
Today, almost every laptop uses a lithium ion or lithium polymer.
00:16:18.159 --> 00:16:24.480
Advantages include lightweight, rechargeable, high energy density, and long battery life.
00:16:24.720 --> 00:16:38.000
Best practice, avoid excessive heat, don't puncture batteries, replace solen batteries immediately, never throw lithium batteries into regular household trash, and follow proper recycling procedures.
00:16:38.799 --> 00:16:40.399
Laptop displays.
00:16:40.720 --> 00:16:45.840
Modern laptops commonly use LCDs, LED, backlight LCDs, OLED.
00:16:46.639 --> 00:16:54.799
OLED displays provide better color, higher contrast, deeper blacks, lower power usage in certain situations.
00:16:55.120 --> 00:16:59.679
Premium laptops increasingly use OLED technology.
00:17:00.159 --> 00:17:03.759
Compte expects you to identify the common laptop connectors.
00:17:03.840 --> 00:17:15.039
You commonly see USB A, C, Thunderbolt, HDMI, Audio Jack, Ethernet on some models, micro SD car readers, power connector.
00:17:15.279 --> 00:17:20.640
Many new laptops charge through USB-C using a USB power delivery.
00:17:20.799 --> 00:17:29.279
That means one cable can provide power, video, and data, also network connectivity, all through a single connection.
00:17:30.240 --> 00:17:31.680
Docking stations.
00:17:32.000 --> 00:17:35.519
Many business users connect laptops to docking stations.
00:17:35.680 --> 00:17:36.079
Why?
00:17:36.319 --> 00:17:37.680
Imagine arriving at work.
00:17:37.839 --> 00:17:47.839
Instead of connecting a monitor, a keyboard, mouse, Ethernet, speakers, USB one at a time, you simply connect one USB or Thunderbolt cable.
00:17:48.079 --> 00:17:49.599
Everything works instantly.
00:17:49.839 --> 00:17:53.279
Docking stations increase productivity and reduce cable clutter.
00:18:10.720 --> 00:18:13.920
And now they have a whole station.
00:18:14.880 --> 00:18:16.319
All right, mobile devices.
00:18:16.480 --> 00:18:18.960
Today technicians support more than computers.
00:18:19.119 --> 00:18:24.640
You'll troubleshoot smartphones, tablets, wearables, mobile hotspots, smart devices.
00:18:24.960 --> 00:18:29.680
So understanding mobile technologies is essential.
00:18:30.240 --> 00:18:36.799
Mobile devices commonly use Wi-Fi, Bluetooth, cellular, near field communication, GPS.
00:18:37.279 --> 00:18:39.200
Each serves a different purpose.
00:18:39.440 --> 00:18:46.000
Bluetooth connects nearby devices, Wi-Fi connects to local networks, and cellular connects through carriers.
00:18:46.240 --> 00:18:47.759
GPS provides location.
00:18:48.079 --> 00:18:53.759
NFC enables contactless payments.
00:18:54.079 --> 00:18:54.319
Right?
00:18:54.400 --> 00:18:56.799
Like going to the phone, like uh Apple Pay, right?
00:18:56.960 --> 00:18:59.119
Or writing the MTA Transit.
00:18:59.440 --> 00:18:59.680
Right?
00:19:00.240 --> 00:19:00.559
What's that?
00:19:00.720 --> 00:19:02.559
OVNI, New York is called.
00:19:03.039 --> 00:19:04.240
Biometric security.
00:19:04.400 --> 00:19:10.640
Maybe many mobile devices use fingerprint readers, facial recognition, iris scanners.
00:19:10.880 --> 00:19:14.400
These improve security while making authentication faster.
00:19:14.640 --> 00:19:18.079
Compteia expects you to recognize these technologies.
00:19:18.720 --> 00:19:20.240
Mobile synchronization.
00:19:20.400 --> 00:19:27.599
Many users expect phone contact calendars, emails, documents to automatically synchronize across multiple devices.
00:19:27.839 --> 00:19:29.839
Cloud service makes this possible.
00:19:30.079 --> 00:19:34.400
Examples Microsoft 365, Google Workspace, Apple iCloud.
00:19:34.640 --> 00:19:40.400
Synchronization ensures information remains consistent across devices.
00:19:41.279 --> 00:19:41.839
All right.
00:19:42.160 --> 00:19:45.680
Many new technicians fear printers.
00:19:46.000 --> 00:19:46.799
Don't.
00:19:47.119 --> 00:19:49.440
Printers follow logical processes.
00:19:49.680 --> 00:19:54.079
Once you understand the technology, troubleshooting becomes much easier.
00:19:54.400 --> 00:19:58.240
CamTIA focuses on four major printer types.
00:19:58.480 --> 00:19:59.519
Laser printers.
00:19:59.759 --> 00:20:02.400
Laser printers dominate the business environment.
00:20:02.559 --> 00:20:08.559
The advantage fast, high volume, excellent text quality, and lowest cost per page.
00:20:08.799 --> 00:20:15.359
Laser printer use laser, drum, toner, fuser assembly, transfer roller.
00:20:15.519 --> 00:20:18.480
Understanding the printing process helps you troubleshoot.
00:20:18.960 --> 00:20:23.519
Here's the simplified process of a laser printing printing.
00:20:23.759 --> 00:20:25.119
Step one, processing.
00:20:25.200 --> 00:20:26.720
The printer receives the document.
00:20:26.799 --> 00:20:28.240
Step two, charging.
00:20:28.480 --> 00:20:31.680
The drum receives a uniform electrical charge.
00:20:31.920 --> 00:20:33.680
Step three, exposing.
00:20:33.839 --> 00:20:36.160
A laser writes the image.
00:20:36.480 --> 00:20:38.079
Step four, developing.
00:20:38.240 --> 00:20:40.319
The toner attaches to the image.
00:20:40.559 --> 00:20:42.400
Step five, transferring.
00:20:42.559 --> 00:20:44.880
The toner moves onto the paper.
00:20:45.119 --> 00:20:46.960
Step six, fusing.
00:20:47.200 --> 00:20:49.759
Heat permanently bonds toner to the paper.
00:20:50.000 --> 00:20:53.119
Compte frequently asks about these steps.
00:20:54.160 --> 00:20:56.720
Common laser printer problems.
00:20:56.960 --> 00:20:59.039
Repeated marks, inspect the drums.
00:20:59.200 --> 00:21:01.119
Printer jams, check the roller.
00:21:01.359 --> 00:21:03.279
Blank pages, low toner.
00:21:03.440 --> 00:21:05.839
Wrinkled pages, inspect the fuser.
00:21:06.160 --> 00:21:09.359
Poor image quality, replace toner or the drum.
00:21:10.559 --> 00:21:11.680
Inkjet printers.
00:21:11.839 --> 00:21:16.000
Inkjet printers spray tiny droplets of liquid ink.
00:21:16.319 --> 00:21:22.559
Advantages excellent for photos, affordable purchase price, great color quality.
00:21:22.720 --> 00:21:23.839
What's the disadvantage?
00:21:24.079 --> 00:21:24.640
Slower.
00:21:24.880 --> 00:21:30.799
Ink can dry out, highest cost per page, but they're common in homes and small offices.
00:21:31.039 --> 00:21:33.039
Next we have thermal printers.
00:21:33.359 --> 00:21:38.240
Thermal printers are used for receipts, shipping labels, retail, medical equipment.
00:21:38.400 --> 00:21:41.359
They require special heat sensitive paper.
00:21:43.039 --> 00:21:47.359
No ink, no toner, simple and reliable.
00:21:48.319 --> 00:21:49.440
Impact printers.
00:21:49.519 --> 00:21:55.440
They're less common today, still used for multiple part forms, industrial applications.
00:21:55.680 --> 00:21:58.480
They physically strike the paper using pins.
00:21:58.559 --> 00:21:59.839
They look like an old typewriter.
00:22:01.519 --> 00:22:04.720
The most common example are the doc matrix printers.
00:22:04.960 --> 00:22:08.960
ComTia still tests these because legacy equipment remains in use.
00:22:09.279 --> 00:22:10.480
Printer troubleshooting.
00:22:10.720 --> 00:22:13.119
A user said, My printer won't print.
00:22:13.599 --> 00:22:15.920
Don't immediately replace the printer, right?
00:22:16.079 --> 00:22:16.799
Ask questions.
00:22:16.960 --> 00:22:17.839
Is it powered on?
00:22:18.000 --> 00:22:19.279
Is the paper loaded?
00:22:19.599 --> 00:22:20.319
Paper jam.
00:22:20.640 --> 00:22:22.400
Correct printer selected.
00:22:22.640 --> 00:22:24.000
Network connection.
00:22:24.240 --> 00:22:27.279
Enough toner, enough ink, print cue stock.
00:22:27.599 --> 00:22:30.319
Simple checks solves many problems.
00:22:31.200 --> 00:22:32.319
Virtualization.
00:22:32.559 --> 00:22:34.000
Now let's switch topics.
00:22:34.160 --> 00:22:37.119
Imagine owing one powerful computer.
00:22:37.279 --> 00:22:45.039
Instead of installing one operating system, you can install several Windows, Linux, Windows Server, all running simultaneously.
00:22:45.200 --> 00:22:46.720
That's virtualization.
00:22:47.680 --> 00:22:48.799
Virtual machines.
00:22:48.960 --> 00:22:52.319
Each virtual machine behaves like an independent computer.
00:22:52.559 --> 00:22:57.440
It has CPU, memory, storage, network connections, applications.
00:22:57.680 --> 00:23:02.319
The host computer shares resources among multiple virtual machines.
00:23:02.640 --> 00:23:08.079
Popular hypervisors include Hyper-V, VMware, VirtualBox.
00:23:08.480 --> 00:23:15.839
Virtualization is heavily used by developers, cybersecurity professionals, system administrators, and cloud providers.
00:23:16.799 --> 00:23:19.519
Why IT professionals love virtualization?
00:23:19.680 --> 00:23:21.599
Well, imagine testing ransomware.
00:23:21.759 --> 00:23:23.440
Will you use your personal laptop?
00:23:23.599 --> 00:23:24.319
Absolutely not.
00:23:24.480 --> 00:23:27.839
Instead, you create a virtual machine, test safely.
00:23:28.000 --> 00:23:30.240
If something goes wrong, delete the VM.
00:23:30.400 --> 00:23:31.279
Start over.
00:23:31.599 --> 00:23:35.359
Virtual machines are excellent learning environments.
00:23:36.160 --> 00:23:37.279
Cloud computing.
00:23:37.440 --> 00:23:39.680
Students hear the cloud constantly.
00:23:40.000 --> 00:23:40.880
But what is it?
00:23:41.119 --> 00:23:44.559
The cloud simply means computing resources delivered over the internet.
00:23:44.880 --> 00:23:49.920
Instead of buying expensive servers, organizations rent computing resources.
00:23:50.079 --> 00:23:56.240
Examples include storage, database, virtual machines, applications, emails, artificial intelligence.
00:23:56.480 --> 00:24:01.039
The cloud allows business to scale quickly without purchasing hardware.
00:24:01.200 --> 00:24:02.640
You use the cloud all the time.
00:24:02.960 --> 00:24:06.240
Google is a cloud service, believe it or not.
00:24:06.480 --> 00:24:06.799
Right?
00:24:07.119 --> 00:24:10.880
Because the email is not on your computer.
00:24:10.960 --> 00:24:16.880
It's somewhere else in a Google place, in a Google server, somewhere else.
00:24:17.359 --> 00:24:17.680
Right?
00:24:17.920 --> 00:24:22.319
Amazon, Netflix, all those are cloud services.
00:24:23.200 --> 00:24:24.240
Cloud service models.
00:24:24.400 --> 00:24:27.119
CompTIA focuses on three major models.
00:24:27.359 --> 00:24:29.119
Infrastructure as a service.
00:24:29.359 --> 00:24:34.400
You manage the operating systems, application, and data, and the provider manages the hardware.
00:24:34.640 --> 00:24:37.119
Examples, renting virtual servers.
00:24:37.759 --> 00:24:39.359
Platform as a service.
00:24:39.680 --> 00:24:44.319
The provider manages the hardware, operating system, and development platform.
00:24:44.640 --> 00:24:46.880
You focus on building applications.
00:24:47.119 --> 00:24:50.559
And software as a service, everything is managed by the provider.
00:24:50.799 --> 00:24:52.799
You simply use the software.
00:24:53.039 --> 00:24:58.559
Examples include Microsoft 365, Google Docs, Salesforce, Dropbox.
00:24:58.880 --> 00:25:04.000
Most users interact with software as a service every day.
00:25:04.240 --> 00:25:06.160
What are the benefits of cloud computing?
00:25:06.319 --> 00:25:15.519
Advantages include lower hardware costs, automatic updates, scalability, anywhere access, disaster recovery, collaboration.
00:25:15.839 --> 00:25:20.799
Comtia frequently asked why organizations adopt cloud solutions.
00:25:21.119 --> 00:25:22.640
Here's a real world story.
00:25:22.799 --> 00:25:26.480
A small business owner once asked me, should I buy a server?
00:25:26.640 --> 00:25:28.480
I asked, What are you trying to accomplish?
00:25:28.720 --> 00:25:31.599
He replied, I need everyone to share files.
00:25:31.839 --> 00:25:37.279
Instead of recommending a$6,000 server, we move the company to Microsoft 365.
00:25:38.400 --> 00:25:42.079
Lower cost, automatic backups, anywhere access.
00:25:42.319 --> 00:25:49.039
Sometimes the smartest IT solution isn't buying more hardware, it's choosing the right technology.
00:25:49.359 --> 00:25:51.279
Alright, let's do some questions.
00:25:52.000 --> 00:25:55.759
Which battery technology is most commonly used in modern laptops?
00:25:55.920 --> 00:26:01.759
A nickel, B, lead acid, C, lithium ion, or D alkaline?
00:26:02.559 --> 00:26:04.880
And the answer is lithium ion C.
00:26:05.200 --> 00:26:07.440
Question two, which printer uses toner?
00:26:07.519 --> 00:26:11.599
A inkjet B thermal C laser D dot matrix?
00:26:12.160 --> 00:26:14.079
And the answer is laser.
00:26:14.480 --> 00:26:17.920
Question three, which printer is commonly used for receipts?
00:26:18.400 --> 00:26:22.799
A inkjet B thermal C laser D plotter.
00:26:24.160 --> 00:26:25.920
The answer is B thermal.
00:26:26.480 --> 00:26:30.720
Question four, which cloud model delivers complete software applications?
00:26:31.920 --> 00:26:37.839
A infrastructure as a service, B platform as a service, C software as a service.
00:26:38.559 --> 00:26:40.400
Or D hypervisor.
00:26:40.559 --> 00:26:42.640
The answer is C software as a service.
00:26:44.880 --> 00:26:54.960
When technology allows multiple operating systems to run on one physical computer, well, which technology allows multiple operating systems to run on one physical computer?
00:26:55.119 --> 00:26:58.799
A RAID B GPT C virtualization D BIOS.
00:26:59.279 --> 00:27:01.279
And the answer is C virtualization.
00:27:01.440 --> 00:27:06.799
Now I'm going to be honest with you.
00:27:06.880 --> 00:27:09.440
The Comptea questions are not going to be this simple, right?
00:27:09.519 --> 00:27:13.920
These are simple, you know, just like check-in questions.
00:27:14.160 --> 00:27:14.400
Right?
00:27:14.559 --> 00:27:20.559
The Comptea exam, the questions are not this simple.
00:27:21.119 --> 00:27:22.720
And I'll do, and I'll do one.
00:27:23.519 --> 00:27:27.440
I'll get into it at the end of this episode about something that I want to do.
00:27:27.599 --> 00:27:29.920
But yeah, they're not they're not that simple.
00:27:30.160 --> 00:27:34.559
So if you get it, if you got them right, it's great that you got them all right.
00:27:34.799 --> 00:27:36.240
But you gotta be realistic.
00:27:36.319 --> 00:27:38.240
The questions are not this simple.
00:27:38.880 --> 00:27:44.400
Alright, when answering printer questions, think about the symptoms when answering cloud questions.
00:27:44.640 --> 00:27:48.160
Think about who manages what when answering virtualization questions.
00:27:48.319 --> 00:27:51.839
Think about isolation, flexibility, and resource sharing.
00:27:52.000 --> 00:27:57.200
Always identify the business problem before selecting the technology.
00:27:59.519 --> 00:28:08.640
Alright, so this is something that I'm doing, and I'm hoping that whoever's listening will sign up.
00:28:08.720 --> 00:28:20.079
I'll put everything the notes, but trying to do an a resource class on August 16th between 12 p.m.
00:28:20.240 --> 00:28:21.119
and 2 p.m.
00:28:21.279 --> 00:28:22.880
Eastern Standard Time.
00:28:23.200 --> 00:28:26.000
Thing is, I need people to be able to join.
00:28:26.480 --> 00:28:26.799
Right?
00:28:27.039 --> 00:28:30.880
If you don't, if I don't have enough people, I'm not gonna be able to do it.
00:28:31.599 --> 00:28:34.960
But you go to my Linktree, right?
00:28:35.200 --> 00:28:49.519
Linktree slash Professor Jrod, and on the contact form, you put your name and your email address, and before August 16th, I will notify you with a link, and then you can join the class.
00:28:49.599 --> 00:28:50.880
We're gonna be doing, yeah.
00:28:50.960 --> 00:28:52.559
I'm gonna go over the comte exam.
00:28:52.640 --> 00:29:00.319
I'm gonna give you a couple of strategy guides, I'm gonna give you questions, but I need I need people to join.
00:29:00.880 --> 00:29:08.799
I also need people to join my TikTok, which is at Professor Jrod, and my Instagram, which is at professor jrod.
00:29:09.359 --> 00:29:17.680
I do the Comtia question of the day every day, so it'll be nice if you can join my TikTok.
00:29:17.839 --> 00:29:27.279
And if you join my TikTok and you see the Comte question of the day, if you want to comment, hey, I heard I'm from your podcast.
00:29:27.519 --> 00:29:28.720
That'll be great.
00:29:29.039 --> 00:29:29.920
That'll be great.
00:29:30.079 --> 00:29:37.440
I'm trying to build a community to get people to pass the Comptea exam and and whatever other exam you want.
00:29:37.519 --> 00:29:46.960
If you're interested in the in me doing another resource other than the A Plus, if you're interested in doing the network plus or the security plus, you gotta let me know.
00:29:47.119 --> 00:29:47.440
Right?
00:29:47.519 --> 00:29:51.920
You can write to me at professorjrod at gmail.com.
00:29:53.200 --> 00:29:58.480
I'm also there, but you know, put the subject you know from your podcast, right?
00:29:58.559 --> 00:30:02.720
That way I know that it's you I get a lot of crap email every day.
00:30:03.039 --> 00:30:08.240
But yeah, so if you please join me August 16th from 12 p.m.
00:30:08.319 --> 00:30:09.119
to 2 p.m.
00:30:09.759 --> 00:30:18.160
Log into my Linktree account and on the contact form, put your name and your email address, that way I can get in contact with you.
00:30:18.319 --> 00:30:25.519
And also on September 13th, it is National Grandparents Day, right?
00:30:25.680 --> 00:30:38.319
And if some of us who are uh fortunate enough to have grandparents around or even our parents around, right, we can use it, give it to our kids for our kids to give it to our grandparents.
00:30:39.200 --> 00:30:46.799
You could always buy my scan proof for seniors book and it helps seniors avoid getting scammed.
00:30:47.039 --> 00:30:53.039
It's available again on my link tree, on my website, professorjro.com, or on Amazon.
00:30:53.200 --> 00:30:55.920
Just look for a scam proof for seniors.
00:30:56.240 --> 00:30:57.839
Look for my name, Dr.
00:30:57.920 --> 00:31:07.440
Juan Rodriguez, and buy it for your parents or grandparents for National Grandparents Day, which is September 13th.
00:31:08.160 --> 00:31:11.920
All right, that's gonna do it for this week for this episode.
00:31:12.079 --> 00:31:16.240
I appreciate every single one of you who are listening.
00:31:16.559 --> 00:31:19.680
I promise that I'm going to be more consistent.
00:31:20.079 --> 00:31:22.319
Today is when am I recording this?
00:31:22.480 --> 00:31:25.359
It is July 31st.
00:31:25.920 --> 00:31:28.240
You know, this month should be a good month, August.
00:31:28.319 --> 00:31:43.119
I'm off, don't have any classes, so we should I should do a bunch of these and put them as they say in the business in the can to have them ready for that way we have a good flow until the end of the year.
00:31:43.440 --> 00:31:45.599
But thank you so much for listening.
00:31:45.680 --> 00:31:52.240
I'm Professor J Rod, and remember, always keep tapping into technology.
00:32:12.160 --> 00:32:17.200
This has been a presentation of Little Chacha Productions, art by Sarah, music by Joe Kim.
00:32:17.359 --> 00:32:20.640
We are now part of the Pod Match Network.
00:32:20.880 --> 00:32:31.440
You can follow me at TikTok at Professor J Rod at J R O D, or you can email me at Professor Jrod J R O D at Gmail dot com.