Binary Explained IPv4 | Cisco CCNA 200-301

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When we type in an IP address, the computer will convert that into binary.
And to fully understand how IP addresses work, we need to be able to do the same.

An IPv4 address is 32 bits long. This means the address is made up of 32 binary digits. Each digit is called a bit. The IP address contains 4 octets. Each octet contains 8 binary bits.

Each bit can either be a 1 or a 0. A bit represents a value of 1, 2, 4, 8, 16, 32, 64 or 128. That value doubles in size from right to left. This is called the power of 2.

We also need to think about subnet masks. Previously I said, wherever there is 255, this is the network section and wherever there is a 0, this is the host section. That’s true in the simplest form, however, it can get a bit more complicated than that.

The real way to see which part of an IP address is the network section is by looking at the subnet mask binary bits and comparing it to the IP address binary bits. Anytime you see a 1 value, this bit is the network section and anytime you see a 0 it’s the host section.

Instead of the full subnet mask, you will often see it written as a forward slash, and then the number of network binary bits. For example, instead of 255.255.255.0, we could write it as /24. This is usually added to the end of the IP address.

#ccna #cisco #networking

[cherylblackwood]

Thank you for explaining this so well! it really isn"t so hard after all

[haideramjad]

Wow. I've seen so many videos on the same topic that just went over my head but you summed everything up perfectly in under 10 minutes. Thank you so much!

[shafiqkhan]

I have an 15 years IT career, but binary was always a myth for me, this video cleared my concept about it, Thanks

[BehzodSabirov]

The only ever video that succeeded to explain me the binary form if an ip address

[prestonmilford]

Glad to see the videos coming back. I always like the way you present the information. Keep it up!

[brendanfernandes]

Hey, Thank you so much for your videos, I’m deciding if I should pursue a career in IT and your videos definitely sold me into taking a course! Thank You 🙏🏼

[EagleZtaloN]

Love the videos. Definitely helped me get through college. Thx

[uac]

This is the best series. Clarity with each viewing. Thank you.

[itaybarok]

Thanks a lot I learn about /
means as a subnet mask and an easy way of getting 10 base number to 2 base number

[wrathtard]

Taking a different certification that glossed over octets so brazenly I failed to grasp it. Your video is so well done and concise that I understood it before the halfway mark. Thank you!

[paramveersingh]

Hello Sir, I have seen all your videos and has helped me in clearing my concepts. Thank You Very much sir

[HH-hyph]

Ugh! THANK YOU!!! You explained this very well,

[tspiels]

im so glad I found your channel. Your videos have been amazingly helpful, thank you!!!

[elenahutu]

omg I thought this was so difficult before watching your video, I been watching so many others but ur the best

[ardentdfender]

The very first time I was learning this was via subnetting. My Indian engineer co-worker was explaining subnetting which I’d never heard of before. It was the most confusing thing I could remember learning, he asked if I knew Binary, I said umm 0 and 1 I think. He started to explain the number thing, I was absolutely lost and totally confused. Nothing else he said after that I understood. Videos like this when I found it made it so much easier to understand. I laugh now how seemingly easy it is to understand binary computation.

[alanledesma]

You are goated you made this sooo much easier then the text

[silvanabongiorno]

Very nice video presentation of binary principle

[adelekearaba]

You are really awesome. Thanks for explaining this in the simplest way ever

[kennedyimaging]

wow! under 5 minutes i understood the concept. thanks very muck

[Klynn]

This video is so helpful! Really made me understand so much better ! Def subscribing 😎