FREE CCNA // What is a Network? // Day 0
Summary
TLDRThis introductory CCNA course video, sponsored by Boson Software, dives into the fascinating world of networking with a unique analogy: the journey of a bullet in an online game. It explains how data travels across networks, from local to wide area networks, and the internet, highlighting key networking components like switches, routers, and firewalls. Aimed at aspiring network engineers, the course promises to demystify these technologies, with a focus on practical labs and practice exams, all for free, thanks to Boson's support.
Takeaways
- 🎓 This is the introduction to a free CCNA course sponsored by Boson Software, which provides CCNA and CCNP labs and practice exams.
- 🔫 The video uses the analogy of a bullet in an online game to explain how data travels across networks and the internet to reach its destination.
- 🏠 The script describes the journey of data from a local area network (LAN) through various devices such as switches, routers, and modems.
- 🌐 It explains that the internet is essentially a vast network of interconnected routers and other networking devices.
- 🎯 The course aims to educate viewers on how networks work, starting from the basics of connecting computers for data sharing.
- 🤖 The video mentions the evolution of networking from simple computer connections to complex systems involving switches and routers.
- 🔄 Switches are introduced as devices that allow multiple devices to connect and communicate within a network.
- 🛡️ Routers are explained as the devices that connect different networks, enabling communication between devices in separate networks.
- 🔒 Firewalls are described as security measures that protect networks from unauthorized access and potential attacks.
- 📡 The script touches on wireless networking, mentioning wireless access points that broadcast networks over airwaves for devices to connect wirelessly.
- 🛠️ The CCNA certification is positioned as a key step for those aspiring to become network engineers, teaching them to design, build, and maintain network systems.
- 📚 The course promises a comprehensive study plan with weekly videos covering all topics in the CCNA curriculum, using Boson Software for lab demonstrations and practice.
Q & A
What is the purpose of the free CCNA course mentioned in the script?
-The purpose of the free CCNA course is to educate and provide training for individuals interested in network engineering, covering topics such as how networks work and the function of various networking devices.
Why is Boson Software mentioned as the official sponsor of the CCNA course?
-Boson Software is the official sponsor because they are providing support that enables the course to be made available for free. They are also highlighted for offering the best CCNA and CCNP labs and practice exams.
What is the analogy used in the script to explain how data travels over the internet?
-The script uses the analogy of a bullet being fired in a game of Call of Duty to explain how data travels over the internet, passing through various networking devices such as routers, switches, and modems.
What is the role of a switch in a network?
-A switch in a network facilitates the connection of multiple devices, allowing them to communicate with each other. It can handle a certain amount of traffic before additional switches may be required to expand the network.
How does a router differ from a switch in terms of network functionality?
-A router helps networks communicate with each other, enabling data to be sent between different networks or sections of a larger network, unlike a switch which connects devices within the same network.
What is the role of a firewall in network security?
-A firewall's role is to protect the network from unauthorized access and potential attacks by blocking malicious traffic and allowing only safe data to pass through.
What is the significance of the Call of Duty bullet analogy in the script?
-The Call of Duty bullet analogy is used to illustrate the speed and complexity of data transmission over the internet, aiming to spark interest in how networking technologies work.
What is the historical context of networking mentioned in the script?
-The script mentions that the goal of networking has remained the same over decades: to enable computers to communicate and share data with each other, which has evolved from simple direct connections to complex networks.
What is the purpose of a Wireless Access Point (WAP) in a network?
-A Wireless Access Point (WAP), often referred to as a whap, is designed to broadcast the network signal over airwaves, allowing wireless devices such as smartphones to connect to the network.
What is the CCNA certification and why is it important for aspiring network engineers?
-The CCNA, or Cisco Certified Network Associate, certification is a key IT certification for individuals on the path to becoming network engineers. It provides foundational knowledge and skills in networking technologies and is often a requirement for entry-level network engineering positions.
How does the script suggest one can prepare for the CCNA certification?
-The script suggests that the free CCNA course, along with Boson Software's lab demonstrations and practice exams, will be instrumental in preparing for the CCNA certification, covering all necessary topics and providing hands-on experience.
Outlines
🎮 Introduction to CCNA and Networking Basics
This paragraph introduces the concept of the CCNA course, sponsored by Boson Software, and uses the analogy of a bullet's journey in an online game to explain the complexity of networks. It covers the local area network (LAN), wide area network (WAN), and the internet, emphasizing the speed at which data travels across routers and networks. The paragraph also touches on the evolution of networking from simple computer-to-computer connections to the current complex systems involving switches, routers, and other network devices. The goal of networking remains the same: to connect computers and share data efficiently.
🛡️ The Role of Routers, Firewalls, and Wireless in Networking
This section delves deeper into the function of routers and firewalls in a network. Routers are described as devices that help different networks communicate with each other, while firewalls are portrayed as the guardians of the network, protecting it from malicious attacks. The paragraph also introduces the concept of wireless networking, explaining how wireless access points (WAPs) broadcast the network over airwaves for devices like smartphones to connect. The speaker shares personal insights into home networking setups and the importance of understanding these technologies for aspiring network engineers.
🚀 Embracing the Journey to Become a Network Engineer
The final paragraph serves as a motivational call to action for viewers to embark on the journey of becoming a network engineer through the CCNA course. It highlights the impact of the CCNA certification on the speaker's career and emphasizes the importance of continuous learning, lab practice, and taking practice exams. The speaker expresses excitement about the course and encourages viewers to prepare for an intensive but rewarding experience, promising to provide weekly videos covering all aspects of the CCNA curriculum.
Mindmap
Keywords
💡CCNA
💡Boson Software
💡Ethernet cable
💡Local Area Network (LAN)
💡Wide Area Network (WAN)
💡Router
💡Firewall
💡Switch
💡Wireless Access Point (WAP)
💡Network Engineer
💡Call of Duty
Highlights
Introduction to a free CCNA course sponsored by Boson Software.
Boson Software is recommended for the best CCNA and CCNP labs and practice exams.
An analogy of online gaming to explain how data travels over the internet.
Explanation of local area networks and the process of data transmission within them.
Introduction to wide area networks and the concept of internet as a series of interconnected routers.
The journey of a 'bullet' from a game to its destination to illustrate network paths.
The purpose of the CCNA course to understand and work with networking technologies.
Historical context of networking from simple computer-to-computer connections to complex networks.
The role of switches in connecting multiple devices within a network.
The necessity of routers to connect different networks and facilitate communication between them.
The function of firewalls in protecting networks from external threats and hackers.
Overview of wireless networking and the role of wireless access points.
The importance of CCNA certification for aspiring network engineers.
The course structure with one video per week covering all CCNA topics.
Boson Software's current 25% off summer sale promotion.
Invitation for viewers to ask questions and engage with the course content.
Personal testimony of how CCNA certification positively impacted the instructor's career.
Encouragement for viewers to prepare for a comprehensive learning experience in the CCNA course.
Transcripts
this is day zero of my free CCNA course
and a huge shout out to boson software
the official sponsor of this CCNA course
they are the reason this can be made
available for free so I highly encourage
you to go check them out they have the
absolute best CCNA CCNP labs and
practice exams
[Music]
how do I do that
well it's simple right I clicked shoot
and the computer shut and that's what
happened but hold on a second though I'm
playing online and the guy I shot isn't
just in the game he's actually playing a
game somewhere far away from me how did
my bullet get all the way to him
actually come here with me real quick
okay so that bullet has to fly over this
Ethernet cable all the way down here
come on let's go down here you notice my
wall jack here what let's go it goes
into my idea to my network stuff here in
my rack come through my walls to my
switch to my router and firewall then to
my modem where does that go come on well
it was my 1885 robots and then okay the
Internet you probably saw that coming
right like duh Chuck we play online on
the internet when we play call of duty
with other people but what happens after
that when I fire that bullet where else
does it go I've already shown you how it
goes through your entire network this is
what you have right now if you're
playing call of duty online this is your
local area network but what happens when
we go outside your home to the van or
the wide area network let's see and the
internet will just be more routers just
someone else's routers hip-hopping
across great distances and that's all
the internet really is just a bunch of
routers connected but of course it's not
just routers you'll have switches here
firewalls just all kinds of stuff in all
these different networks but the cool
thing is is that in the blink of an eye
as fast as you could fire a bullet in
Call of Duty that's how fast things are
going across all these routers until
finally your bullet flies all the way to
the call of duty servers but hold on not
finally not yet because your bullet has
intended to call of duty but now call
duty has to send your bullet to the guy
who's about to get a shot so again we go
back up to the internet BAM back to the
router and this could be another path
hopping from router to router to router
until it finally arrives at my brother's
house because he is the one I shot and
it will hit his modem his router his
switch travel through his Ethernet cable
to is ps4 and he gets shot
crap now why did I show you this why why
would I show you how a bullet can travel
across the Internet
well I did it as a test what I'm hoping
is if you saw this you would go wow I
want to know more about how that works I
want to do something like that if that
was you this course is for you the CCNA
is for you because what I just showed
you is what you'll be learning in the
CCNA networking how networks work now if
you look at this the networking we have
now is pretty complex but the goal is
the same as it was 20 30 40 years ago I
want my computer to talk to another
computer I want to share data with that
computer I want to hang out that's
that's all we want to do and that's how
networks came about it was one computer
saying hey I have all this data I want
to share with another computer and I
can't do that right now without a lot of
effort so you know what let's figure out
a way to connect ourselves and that's
where networking was born we can still
do this by the way you can use an
Ethernet crossover cable just to connect
two computers together but mark he
wanted to talk to mark over here was
left out in the cold oh hi mark so
income switches and a switch will allow
us to connect more than one computer
together doesn't have to be a computer
can be a printer by the way just so you
know I'm glossing over this there's a
lot more involved broadcast domains MAC
addresses VLANs all kinds of stuff with
switching so just know this is just the
tip of the iceberg but if you like this
you'll like the other stuff too
now this is a network and a switch
facilitates that all these computers are
connected together their internet work
together and they are having a blast
talking to each other playing games
whatever now a switch can only handle so
much before there are too many computers
talking too many things talking a lot
once and he's like I can't I can't do
this so what do we do well we get
another switch easy enough right so easy
and we connect more computers and they
have a blast or having a good time yes
and yes the more computers I draw the
O'War stay get you probably can even
tell their computers anymore well I
should probably label my switches right
and let's just call them switches so you
know what's going on now what we have
here is essentially two networks let's
call this network one and network - we
got a problem though what if Bob over
here wants to play a game with mark but
they're not connected together how do we
solve that problem well that's where
routers come in routers I'm not gonna
draw one I'm just gonna bring
a router will help these two networks
talk that's what routers do they help
network to talk to each other so we
connect our switch up to our router bam
bam and a high level view extremely high
level view of how this one might work is
Bob's like hey I want to talk to mark so
he says mark are you here and everyone's
like no Mark's not here so Bob's like
huh well maybe he's over here so he goes
to the router says hey router is Mark
anywhere do you know about mark and the
routers like yeah I think I might know
where he is BAM hey Mark is over here
and now mark and Bob can talk to each
other so where does the internet come in
well this might be just one section of
the Internet so put them down here and
we might have another router with
another situation and by situation I
mean another switch with a bunch of
computers who just want to hang out with
people and talk and play games and we
connect these two routers together and
the Internet is just this times a
thousand now again I've got to say this
if you were to pop the hood on the
internet and look inside it's pretty
complex like there's a lot of stuff
going on so keep in mind what I'm saying
here is very high-level but that should
be exciting to you like wow I can't wait
to learn more about how all this works
and we'll definitely cover that okay so
we looked at our switch and we looked at
a router what about this guy
what's a firewall doing well simply he's
protecting you he's protecting your
network now as you may know there are
some bad people out there some bad dudes
that want to attack your network that
want to steal your information these
hackers are constantly trying to find
ways to steal your stuff and while
they'll try to get into your network a
good firewall will keep them out now
again with networking routers and
switches we want to connect people
connect computers connect devices
smartphones and smart lights and all
kinds of stuff and that's a normally
good but then there's bad things and
that's where a firewall comes in a
firewalls job is to block anything that
shouldn't come through or go out and
only allow the good stuff now I'm hoping
at this point some of you are probably
going well Chuck I don't connect
anything to a switch in my house there's
no cables anywhere what are you talking
about
well you're right for the most part most
of things we use in our networks have no
cables that's why part of the CCNA
you'll learn about Wireless but where
does it come in well here's how you
would do it let's take Cameron's network
for example I know that he has what's
called a wireless access point often
referred to as a whap and this device is
designed to
I cast the network over airwaves
airwaves at your phone can connect to
now again many of you and your home
network probably have one device that
has a access point modem firewall router
and switch and one device which is
pretty amazing which might cause you to
wonder well why does Chuck and his
brother have separate devices for all
these functions well first of all we're
geeks a second we do that because we are
network engineers and this is what
you'll see when you walk into a company
because a company they won't have one
device that does all this companies will
typically have a lot more people a lot
more things on their networks still need
bigger switches bigger firewalls bigger
routers more access points so they just
need more and they need more features if
you're curious about what I have in my
home networking what my brother has I've
got links below now again this will be a
free CCNA course CCNA being the cisco
certified network associate it is one of
them probably the main IT certification
you'll want to get on your path to
becoming a network engineer what's a
network engineer well what I just showed
you the whole Call of Duty thing bullets
floating through space and go and
getting to my brother across the
internet a network engineer makes all
that stuff work they design things like
that they make sure those things stay up
that's their job and the CCNA will begin
to teach you about those technologies
understand them build them how they work
and we looked at a few of those devices
right now switches routers firewalls
wireless access points will later look
at network controllers and we're servers
coming to play when we saw the Call of
Duty server right but will look a bit
deeper into well really what is a server
and how does that affect our networks so
free what are you getting I got to make
sure you get your money's worth so I
will be doing one video a week and this
will be a complete course covering every
topic in the CCNA
now a large reason I can do this for
free is because of my sponsor boson
boson software if you've watched me
before you know I talk about them a lot
they are by far the best labbing and
practice exam software out there for
CCNA and CCNP no joke and they have
other stuff too but CCNA CCNP is what
i've used them for and they're fantastic
that being said I will be using them as
my lab demonstration and I will be
throwing up practice exam questions
throughout these videos now real quick
boson is having a sale right now 25% off
it's their summer sale so if you
wanna get boson now is the time I've got
links below now if you have questions
hey this is my first video just getting
started so I'll probably end up
answering a lot of your questions and
you know I've been talking about the
CCNA for a very long time on my youtube
channel so I probably have answered your
question already if you look back
through my videos otherwise I'm here to
help
leave a comment below if you have any
questions about this it can be about hey
how long is it gonna take to study for
the CCNA will it help me get a job is
this even worth it
I mean I've explored that I I had the
CCNA I got it to become a network
engineer it served me pretty well well
guys that's all I got I am stoked like
legit excited to start this course I can
honestly say the CCNA changed my life I
know has changed many people's lives
I've talked to it's one of those
certifications that when I put on my
resume it did open doors for me to
become a network engineer so anyways
get your coffee ready it'll be lots of
coffee in this course we're gonna study
we're gonna lab we're gonna practice and
we're gonna get certified I'll catch you
guys later
[Music]
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