Join over 3 million cybersecurity professionals advancing their career
Sign up with
Required fields are marked with an *
Already have an account? Sign In »
1 hour 26 minutes
Hello and welcome to CyberRays Network Infrastructure Course Wireless networking protocols. I'll be instructor Dustin Perry.
In today's video, we're going to go over quite a bit of information on wireless networking protocols. First, we're going to start off with kind of a breakdown. What is a network protocol? And then we'll get into some more of the details off wireless network protocols for your standard. Oh, I find networks.
After that, we're going to talk about some of the I, O. T. Or Internet of things devices and the protocols that they use. And lastly, we're gonna go over cellular protocols. Let's get started.
So, first off, what are protocols? This definition does come from competencia Don, or so it's a little bit of long. One bear with me. A network protocol is an established set of rules that determine how data is transmitted between different devices in the same network.
Essentially, it allows connected devices to communicate with each other, regardless of any differences in their internal processes, structure or design
network protocols of the reason you can easily communicate with people all over the world and thus play a critical role in modern digital communications.
So to break it down into a little bit easier terms. Basing protocols are a set of rules that allow devices whether they come from manufacturer A or manufacturer X
to communicate with each other so you don't have to have a bunch of different individual things, so it allows every kind of be on the same page.
Wireless networking protocols. There's there many different protocols for your standard wireless or WiFi networks. These networks typically work in the 2.4 gigahertz or five gigahertz range, and are capable of varying network speeds.
You'll often see these in home environments, coffee shops, most public places now and enterprise environments as well.
Some examples of some common wireless networking protocols include a toe to toe 11 b, which is really an older one. You probably still see it around on a few devices
you tatooed on 11 G, which is a standard that improved upon your 802 to 11 B
802 to 11 A, which is one of the first wireless particles to start using that five gigahertz range
an 8029 11 a. C, which is definitely a newer one. It was finalized in about 2013 and you'll find this in most of modern devices, like phones, laptops and smart TV's.
So this chart breaks down. Ah, few the details on the differences between these standards. So we've got our standard of the left, followed by the frequency that it operates and the speeds that is capable of and then, lastly, the range of these networks. So starting off, we've got $802. 11 B,
which operates in the 2.4 gigahertz frequency
and provided speeds up to about 11 megabits per second.
The typical range for an ego to 0.11 B network was about 150 feet,
802 to 11 G, which also operated at the 2.4 gigahertz range but provided speeds up to 54 megabits per second with that same range about 150 feet.
You know, to 9 11 A was one of the first ones that started operating at the five gigahertz range and also offered speeds up to 54 megabits per second and was a little bit less on the rain. Show's about to earn 25 to 75 feet,
802 down 11 n which is really common nowadays. You'll see this on a lot of older our routers in the last 10 years or so. They operate at the 2.4 gigahertz over five gigahertz range.
They give you speeds up to about 600 megabits per second, and the typical range was, ah, 175 plus feet.
So it really depends on the kind of the building materials around use of the walls. There's a man, it's obviously a lot last thing and some wood walls.
And lastly, we've got a toe to toe. 11 a. C. That is a newer one. Just came out in about 2013 I believe is what we said before the frequency it operated at was five gigahertz, and it offers speeds off to seven gig. It's gigabits per second,
and the rain showed that was about 170 feet.
I o T protocols.
So you've probably heard of this new fad I o T devices or Internet of things.
This is a actually exactly what it sounds like. The interconnection via the Internet of computing devices that have been put into things.
There are so many different types of I O T device. Now that would be nearly impossible to list them all. But some of the most common I O T devices are things like home automation tools like your Amazon Alexa or your Google Home device.
There's also smart lights that you can control with some of these home automation tools or some laps on cell phones or on the Internet.
There's also smart locks, which, personally not a huge fan of myself, but they are cool. They will have a lot of her features like I'm locking as soon as you get home. We're unlocking your door with your cell phone or even with those home automation tools.
So really, you can think of any electronic devices used today, and somebody's probably made an I. O T. Version of it even tea kettles.
Although some of these devices do work on your standard WiFi protocols, most of these devices now have their own protocols. Some of the most common are Bluetooth, which you've probably heard of before, and then also zig B and Z wave.
These protocols typically transmit at much lower speeds and ranges, but support a large number of devices.
Next up, we've got cellular protocols And like most different devices, cellular devices have their own protocols, and you've probably heard of at least a couple of these before. Like three gene 40. The G just stands for generation.
So before you three and four G, obviously there was one. G m two g one G was the first particle used typically in your, uh,
car phones are the old bag phones. If you around in the late eighties, early nineties Or if not, you probably seen them in movies. Um, so this was an analog wireless technology, and it was replaced with two G
to your second generation was the first secular protocol to start using digital networking.
And with digital networking, new services were able to be introduced like text messaging and email to G Also supported better encryption than one G
three G was really when cell phones or smart phones
kind of came about. Because of this free G protocol with three G were offered much faster data transmission speeds, which enabled a lot of new things like Internet browsing, picture and video messaging and even the use of hand held GPS
for G, came out after that and again introduced even faster transmission speeds and was also the first generation to support I p Telephone E versus your typical circuit switched telephone services. Like the previous generations,
five G was introduced in late 2018 but it's not really widespread yet. Most current devices don't fully support it. So there's a huge upgrade cost of on both E, uh,
cellular providers side like the cell in tennis and stuff. And also on the consumer side, your phones. You need a phone that will support five G, and this is currently being developed and worked on, so it is probably available in a few places. But it'll be more widespread soon.
And a quiz question. Your new boss, Charles, has requested that you give him a brief rundown on wireless protocols. What would you tell him?
This is a big question to go ahead and positive video and take a few notes.
What would you tell Charles?
All right. So hopefully you've kind of got a few notes together on what you would tell Charles to give him a brief rundown on wireless particles,
so there's really not a wrong answer here, But this question, it really tests your knowledge of wireless protocols.
The first thing I would mention is what a protocol is.
Ah, Wireless Network Protocol is an established set of rules that determine how data is transmitted between different devices
in a wireless network.
Then you kind of get into more of the details of wireless networking protocols like the different types of wireless protocols. You can start out with your standard WiFi ones or the 8 to 9 11 Siris of protocols, maybe go for some of the transmission speeds of the ranges. So where they operate out,
and then you can move into some of the I o T device, part of calls like Bluetooth Ziggy in Zewe.
Lastly, you could go over some of these cellular network protocols, starting with one G or first generation, all the way up to five G.
So in today's video, we discussed quite a bit wireless networking protocols. We started off with what network protocols are and how they're a series of rules that allow devices to communicate. And then we got into again those details of the wild stocking protocols. In the 82 days 11 Siri's
and we were moved on to coyote devices or Internet of things devices and the protocols that they use. And lastly, we went over cellular protocols