ERRATA: From 16:00, decimal 221 is actually equal to binary 11011101. Spot the math error!
@huaingomez7197
4 жыл бұрын
I was going to write to let you know, thanks anyway, your presentations are very clear and educational.
@Jerkface1er
4 жыл бұрын
I spotted it as all numbers were even except 93 and subtracting an even number from an odd number will always leave you with an odd number.
@SUMIT-sy7qs
4 жыл бұрын
It happends, that not so serious ;)
@vashantir
4 жыл бұрын
So I had that written down and then when you gave the answer I was like, ok...it's been some years so I was wrong.
@ekkoitk
4 жыл бұрын
Hey Jeremy, start the video at 28:02, within a few seconds you state, "Because the network portion is very long..." It is regarding Class A, so you meant to say, "Because the network portion is very short", "Because the network portion isn't very long", or "Because the host portion is very long."
@harryhwc76
4 жыл бұрын
Hi Jeremy. You explain these concepts in very easy to understand terms. I took a college course on this topic and the experience I'm getting from your course is so much better. Nice work!
@JeremysITLab
4 жыл бұрын
Thanks Harry, I appreciate it :)
@TheNaomix4
3 жыл бұрын
Thank you so much! I understood every bit of it! I never imagined I would be studying for my CCNA, yet here I am, thanks to your hard work!
@JeremysITLab
3 жыл бұрын
Thank you, so glad to hear that!
@АнатолийАнатолий-п1д
2 жыл бұрын
>I understood every bit of it! I see what you did there ( ͡° ͜ʖ ͡°)
@gordonasturias6604
9 ай бұрын
Greetings Jeremy. Thanks for putting all this great material together. I appreciate all your hard work and sharing with this community.
@vigneshpandiyan9040
4 жыл бұрын
best explanation i ever seen
@JeremysITLab
4 жыл бұрын
Thank you :)
@shopwithali6586
2 жыл бұрын
this guy is genius
@mohammedsuhailbasha4860
4 жыл бұрын
Please upload more videos in CCNA and computer networking sir.
@JeremysITLab
4 жыл бұрын
The next video will come soon! Thank you :)
@paulschneider2856
5 ай бұрын
Let’s all get rich!!
@reaction131
2 ай бұрын
thanks for jermyes lab but in this video, when I did the decimal to binary I noticed that you calculated by mistake 221 to binary =11011101 I think this one is correct because when you subtract 93-64=29 but you did it 28 I really enjoy your videos I know this mistake was by calculating or I might wrong calculate it
@dmx71234
2 жыл бұрын
Is converting between Decimal and Binary notation really required for the CCNA exam?
@JeremysITLab
2 жыл бұрын
Yeah you need to know it to understand IPv4 addresses and subnetting.
@yoganandats2565
4 жыл бұрын
Thank you !!
@JeremysITLab
4 жыл бұрын
Thank you!
@SUMIT-sy7qs
4 жыл бұрын
at 38.39 in the quiz: 143 =! 10001111= 139 but 143 = 100101140:20
@JeremysITLab
4 жыл бұрын
I'm not sure I understand what you're saying. 143 is 10001111 in binary.
@SUMIT-sy7qs
4 жыл бұрын
@@JeremysITLab You're totally right, I think I was so tired yesterday evening lol, Indeed, 128 (10000000) + 15 (00001111) = 143 (10001111). Sorry and thanks again for your very good lectures :)
@995-SanjanaSubudhi
3 ай бұрын
at 33:52 why does the packet with destination ip address 192.168.1.255 goes to PC 2 with g0/0 interface ?
@sunnyk9848
2 жыл бұрын
lets appreciate this guy for making the entire awesome playlist free for us. May God give u more health and peace in your life. Thankyou from our core of hearts♥
@daxpatel451
Жыл бұрын
Hello Jeremy, Thank you for doing such an awesome job. Your videos did help me lot to understand the material. BTW on your video there is a minor mistake on 16:57 where the decimal to binary conversion should be 11011101 instead of 11011100.
@devgoswami2
8 ай бұрын
yes u r right
@sarahchua2811
4 ай бұрын
Noticed that too. I thought it is only me. Thanks for your comment.
@mistatig
4 ай бұрын
@@sarahchua2811 i caught that. i thought i did something wrong......
@nkurunzizadenis4442
3 күн бұрын
noticed that as well
@paoloraquepo1911
4 жыл бұрын
If you were my math teacher in college, there's no way I'm gonna fail. You're very thorough and explain matters in a concise manner. Thank you sir!
@JeremysITLab
4 жыл бұрын
Thank you for your comment :)
@AndriyKerez
4 жыл бұрын
I happen to read this comment when spotted a deduction error at 16:00. "Math teacher" sounds quite ironical in this context. LOL Just joking ofc - happens to everyone. Fantastic explanations and teaching skills. Thanks a lot, Jeremy!
@ivanjuresa4208
2 жыл бұрын
He was wrong. It is not 28, but 29
@chrisfoster3772
2 жыл бұрын
@@ivanjuresa4208 oof
@joseph6215
3 ай бұрын
@@ivanjuresa4208 Literally I have bene scratching my head at this for the past hour. Anyone that says this guy should be a math teacher hasn't been checking there work.... fuck me what a waste of time that was.
@JayantBB78
4 жыл бұрын
The way you taught this, I wish you would have been there as my college professor. You are awesome.
@JeremysITLab
4 жыл бұрын
Thank you :)
@seanturner7511
9 ай бұрын
Was brought here by Reddit. This guy is the GOAT. Let's get this CCNA!!!!
@ahoahh
27 күн бұрын
hows it going?
@rgk1579
4 жыл бұрын
Could you please tell the actual difference between X.Y.Z.255 vs 255.255.255.255? Does the 2nd one send broadcasts to all other networks also ,this implies router is forwarding broadcasts?If yes , does it broadcast to the networks only to its interfaces(neighbouring networks) or their neighbours and their neighbours and so on?
@rgk1579
4 жыл бұрын
One more doubt , And when I buy a new laptop or pc , say it has no ip assigned , (suppose user dont know how to assign ip manually(static)) i assume that it use source mac as 255.255.255.255 and use dhcp message to reach dhcp server , and get one ip . Is my assumption correct?
@JeremysITLab
4 жыл бұрын
Again, good questions! Question 1: 255.255.255.255 simply sends a message to all hosts on the *local* network, with a destination MAC address of FFFF.FFFF.FFFF. The network's broadcast address (X.Y.Z.255, or X.Y.255.255, X.255.255.255 etc) is used to send a broadcast to a specific network (not necessarily the local network). For example, a host in network 192.168.1.0/24 could send a broadcast to network 192.168.2.0/24. It would send the frame to a router, and once it reaches the 192.168.2.0/24 network it will be broadcast to all hosts in the network. Question 2: I will teach about DHCP later in a later lesson, but 255.255.255.255 isn't a MAC address, it's an IP address. The PC will send a broadcast to IP address 255.255.255.255, MAC address FFFF.FFFF.FFFF. The source IP will be 0.0.0.0 (because the PC doesn't know its IP address yet) and the source MAC will be the PCs own MAC. The DHCP server will then respond and assign an IP address on the local network to the PC.
@rgk1579
4 жыл бұрын
@@JeremysITLab OMG...I wondered when I read "again" , you recognised me! The only e-teacher who remember the doubts and even the people❤️... Deeply connected to you sir😅
@-b777ljq3
3 жыл бұрын
I did self study with many different IT courses, including Linkedin, Google, and other youtube channels, but found Jeremy's course is the best because it's a well balanced one, has a lot of theory, and also Lab practice with hand on experience. Very good, thank you Jeremy.
@xxth0mpsonxx
2 ай бұрын
just a heads up, at 16:00 93-64 is not 28, its 29. I was racking my brain for a moment! Great video though, this series is awesome
@craigeagon5109
Жыл бұрын
Sometimes us IT guys are great at learning and terrible at explaining something in an understandable way (typically because of far too much of an assumption of previous knowledge to whom we are explaining); you are quite awesome at explaining!
@brianj364
Жыл бұрын
not a big deal and still learned the lesson but in the 221 example converting to binary 93-64=29 not 28 thus changing the answer to 11011101.11011100 is 220 Took me a second to catch it.
@Meganano
4 жыл бұрын
im only 14mins into the vid and 🤯 you have explained binary so well thank you
@JeremysITLab
4 жыл бұрын
Nice, glad to hear that!
@jamesharris1613
2 жыл бұрын
I love the series so far. I am on day 13 and am looking forward to completing this course. Commenting this on every video for the algorithm.
@tanveerhasan2382
9 ай бұрын
Did you finish
@gottabepablo
Ай бұрын
@@tanveerhasan2382 No
@Ba72an
3 ай бұрын
I have never understood IPv4 better than today !! You sir are a legend ! Thank you so much.
@larryphotography
2 жыл бұрын
A little trick I'm using to calculate the decimal from the binary is that if the majority of bits are 0 then I add up the 1s columns, but if the majority are 1s then I deduct the 0 columns from 255 or whatever the maximum possible is (if there are 0s on the left side so I deduct from whatever smaller number would be from all 1s up to the last 1) if that makes sense.
@SesegB
8 ай бұрын
same)
@YS-bv7xv
4 жыл бұрын
This is the best explanation I've ever seen. Thank you very much!
@JeremysITLab
4 жыл бұрын
Thank you! :)
@uniquechannelnames
4 жыл бұрын
I believe at 5:38, you state that "If *R1* sends out a frame with the broadcast mac address of all F's" when it's actually PC1 sending out the broadcast frame. Just a little slip of the tongue I thought I'd point out, unless I'm mistaken.
@JeremysITLab
4 жыл бұрын
Yep, you're right about that. Thanks!
@masifmasif
2 жыл бұрын
These comments are not to ask any question, these comments are just to say that "YOU AND YOUR VIDEOS ARE WONDERFUL" It is an easy and detailed (even only necessary details) way of delivering the knowledge. I have been a teacher myself and I understand that having knowledge is something else and delivering knowledge is something else. Thanks.
@JeremysITLab
2 жыл бұрын
Thanks for your kind words, Mohammad :)
@steve-harveyy
3 жыл бұрын
8:03 IPv6: let me introduce myself
@ZKTheGreat
Жыл бұрын
I've learned so much. You're an amazing teacher, Thank you! Hope to pass my CCNA exam in a few weeks.
@BMGKenya
2 жыл бұрын
This is Soo amazing Mr Jeremy Soo loud and very clear. Truly appreciate it. For 4 months i have been struggling to understand ipv4 addresses and all the conversion of the binary to decimal and decimal to binary. Now i gat it all. Thanks u once again...💪🏿🥰
@geremewadnew7401
4 жыл бұрын
Hi Mr. Jerem's There is an error on video when you convert decimal to Binary (221) = (11011100) the correct result is 11011101. Thank you
@JeremysITLab
4 жыл бұрын
Yes, check the errata I pinned at the top of the comment section!
@mr.compnet2263
7 ай бұрын
It's comes with senses
@gruba4630
4 жыл бұрын
Awesome job, Jeremy ! I 'm watching your videos from the beginning (Day 1) , and I'm very satisfied until now. One suggestion: since many of the viewers have previous knowledge on some of the subjects, it would be great to split each lesson into chapters and put markers in the description. Thus they could easily skip or review some parts.
@karmeko
4 жыл бұрын
Really enjoying your course content. Don't know how I could bring myself to pay for a similar course on Udemy! Keep up the good work.
@JeremysITLab
4 жыл бұрын
Thanks for watching! Glad you're enjoying it
@denzelachrow3625
5 ай бұрын
Hi I have a quick question Will I be permitted to do a rough mathematical work while writing my CCNA exams?
@ZakarieMFiile
4 жыл бұрын
Appreciation on All of your Videos Respect and Love From Somalia Before I watch any Video from you, I hit like button and then start watching
@JeremysITLab
4 жыл бұрын
Thank you Zakarie :)
@dragonflysdiscoveries7567
Жыл бұрын
16:46 = I believe this may be wrong 128 + 64 + 0 + 16 + 8 + 4 + 0 + 1 = 221 But I do like that style of working it out' Sorry, I wrote this before I saw your comment above. Great lectures though
@parampreetrai7093
2 жыл бұрын
We can also convert decimal to binary by dividing it by 2 each time and noting the reminder. Like 127 to binary 127 % 2 = 1 63 % 2 = 1 31 % 2 = 1 15 % 2 = 1 7 % 2 = 1 3 % 2 = 1 And last note both reminder and quotient 1 % 2 = 1 1 / 2 = 0 Reading backwards you got answer 01111111.
@BijouBakson
4 жыл бұрын
This was good practice for me, for a subject I am pretty comfortable. Thanks for your amazing work.
@xclusv101
4 жыл бұрын
Hi Jeremy, I was wondering, is it possible to have a Class A address ICDR /24? For example: Network ID: 10.10.10.0 Subnet Mask: 255.255.255.0 Gateway: 10.10.10.1 So you'll have clients in 10.10.10.2 - 10.10.10.254?
@JeremysITLab
4 жыл бұрын
Yes you can! That's subnetting :)
@xclusv101
4 жыл бұрын
@@JeremysITLab Thank you! I guess I was a little confused as to why class A will always be /8. But I think there is a difference between subnetting and netmask.
@MrOmarwhatever
4 жыл бұрын
The best tutorial for Addressing ever! Thank you so much Jeremy!
@JeremysITLab
4 жыл бұрын
Thanks Omar :)
@rayjukenl3497
Жыл бұрын
Very good explanation of how bits relate to subnetting
@saatvikkumar3862
10 ай бұрын
Yes that kinda explanation is rare,
@imjinaah
3 жыл бұрын
for review purposes 0:33 Introduction 1:02 Layer 3 quick review 2:14 Routing Introduction 4:26 Parts of an IP Address (overview) 6:22 IPv4 Header (Source and Destination IP Address fields) 8:28 Decimal / Hexadecimal quick review 10:18 Binary 13:06 Binary ► Decimal sample 15:16 Decimal ► Binary sample 20:07 IPv4 continuation 22:10 Binary bits ►IPv4 conversion practice\ 23:39 IPv4 Address Classes 26:04 Loopback Addresses 30:10 Netmask 31:49 Broadcast and Network Addresses 33:59 Review 35:19 QUIZ
@imjinaah
3 жыл бұрын
@@speedysui I do this in the morning (weekdays), I take notes while watching the video. After that, I study the notes, then rewatch the video. 🤣 During the night and weekends, I study the past lessons. 🤣 Don't focus on the speed. Take all the time you need. 😄
@imjinaah
3 жыл бұрын
@@speedysui I don't use books, I google stuffs to reinforce what I've watched/reviewed. You should focus on both theory and practical, they go hand in hand together. :)
@imjinaah
3 жыл бұрын
@@speedysui No problem. You can do it! Good luck to us. 😄
@OrigCapnMojo
5 ай бұрын
the way you explained base 16 and base2, helped me truly understand. Great work. much appreciated.
@SecksyMan
3 жыл бұрын
you made this a lot more accessible than my book did. Thank you!
@JeremysITLab
3 жыл бұрын
Thanks John, glad to hear it :)
@sami23alarabi
2 жыл бұрын
Jermey, you are the best one that explains CCNA in such clear and easy way! Really appreciate your effort and thank you so much for these great videos. BTW, I'm telling all of my friends about your channel because you deserve it. Thanks again.
@MrTsamish
3 жыл бұрын
hi what about IPv6 subnetting? will that be on the cert test?
@አንዱዓለም
Жыл бұрын
Excellent presentation, more than instructors. all CCNA exam taker follows you. waw God Job! keep it up.
@ismaeel9654
6 ай бұрын
9:49 - can someone explain where the 16 came from on the hexadecimal D part. I understand how D in hexadecimal is 13, just don't know where 16 came from.
@sivcrest
5 ай бұрын
It's because each position increases by how many instances of 16 there is. Think about base 10 for a moment since that's easier to follow. Take a simple number like 123: 123 = 1 * (2 instances of 10) + 2 * (1 instances of 10) + 3 * (0 instances of 10) = 100 + 20 + 3 = 123 Notice for each position to increase, you do it by 10 * (how many instances of 10), starting at 1, 10, 10*10, 10*10*10 ... 10^n where n=number of instances. 10 here is the base (hence the name "base 10"). Now for hexadecimal, just replace 10 with 16, that's how the 16 got there. It started at 1, then 16, 16*16 (how the 256 got there), 16*16*16 ... 16^n where n= number of instances. This is the same for all bases. If we're dealing with say base 2, replace 16 with 2. If we're dealing with base 8 replace 16 with 8, etc etc. I hope this made sense
@daggerv3
3 ай бұрын
Jeremy really just taught me binary in 5 minutes.
@divyagohil6520
4 жыл бұрын
how can u recognize that it is should be /16 instead of /24? In your previous IP address that 192.168.1.256 u used / 24 and while converting ipv4 binary bit into decimal u used /24. please advise
@JeremysITLab
4 жыл бұрын
Watch the section about IPv4 address classes from 23:59!
@IDK-kv8ob
4 жыл бұрын
Thank you for taking your free time and doing this. I've been using your videos and flash cards every day.
@JeremysITLab
4 жыл бұрын
My pleasure, glad you're making use of them!
@ak-music
8 ай бұрын
Thanks bro, this is a great course but there is an issue while you convert 221 to binary number the answer should be 11011101 not 1101110 , please correct it
@rrayess
3 жыл бұрын
Hey Jeremy and team! thank you so much for all these videos, they are really helpful and easy to follow. I have a quick on, is there any need to know about converting towards hexadecimal and viceversa or with binary and decimal is enough for the CCNA exam? Thank you once again! :)
@uniquechannelnames
4 жыл бұрын
Sorry but one last little tongue slip (I believe). At 28:00 you say "In Class A, there are fewer possible network addresses, however because the *network portion is very long* there can be many hosts on each network." Shouldn't it be that the *host portion* is very long in Class A (3 octets), thus allowing for many hosts on each network?
@JeremysITLab
4 жыл бұрын
Yes, you're correct.
@RealHIFIHelp
3 жыл бұрын
Good IT teacher.
@altairdias3056
Ай бұрын
I can not thank you enough Jeremy! It's a been a few rough months for me on the IP addressing topic but today after watching this video I think I can finally say rhat I got it! Besides, I now know what the slashing notation means! WOW!!!! I'm really grateful. 😭🙏
@aub2433
4 жыл бұрын
Excellent video, the way you explain is fantastic, please finish this course faster, we need more videos. Thank you
@JeremysITLab
4 жыл бұрын
Thank you, I'll try to finish it faster!
@happios
4 жыл бұрын
In binary terms, you are a 1
@JeremysITLab
4 жыл бұрын
Thanks, I think! Haha
@superflyj416
3 жыл бұрын
Why do Class A, Class B, and Class C addresses have defined prefix lengths? Is there a technical reason or is it just convention?
@JeremysITLab
3 жыл бұрын
It was designed that way so that a network of appropriate size could be assigned to each company. Small company = class C, huge company = class A.
@johnwilliam2381
4 жыл бұрын
Thank you Jeremy for this free series of videos. I do have a question here, does Routers drop packets with destinations that don't match any entries in the routing table when gateway of last resort has been configured?
@JeremysITLab
4 жыл бұрын
The gateway of last resort matches ALL destinations by definition, so it won't drop them!
@johnwilliam2381
4 жыл бұрын
@@JeremysITLab Okay. Thank you
@amiraazmy6701
3 жыл бұрын
Your videos are really structured and organized .. thank you so much for ur efforts . You explain concepts really well, your voice is clear and the slides are well connected
@JeremysITLab
3 жыл бұрын
Thank you :)
@akhilsharma2674
4 жыл бұрын
u said 192.168.1.254/24 assigned to r1 g0 interface . who assign network adress to routers? routr itself create network adress or what ? i am confused about assigning or who assign adress and how manually or physically
@JeremysITLab
4 жыл бұрын
The network engineer who designs the network assigns the IP addresses! In this case, I designed the network, so I assigned the addresses by using CLI commands (ip address 192.168.1.254 255.255.255.0 on the interface)
@arshvirsingh1828
4 жыл бұрын
Hello sir! i have a question , does wifi router acts as a normal router? if i want to have a switch in this scenario will i connect the switch to wifi router or wifi to switch?
@JeremysITLab
4 жыл бұрын
A 'wifi router' like the one most people have in their home is a multi-purpose networking device, it's like a router, switch, firewall, and wireless access point together. If you want to attach a switch to your home network, you'll probably connect it to one of the switch ports on your wifi router.
@Reason_over_Dogma
3 жыл бұрын
I got a few wrong. I understand the formula completely but When I do it, I just have to show all my work and do it step by step. When I did that and double check my work by converting it back to binary for example, I got it right.
@SBRajuDittakavi
6 ай бұрын
33:33 - can someone clarify me please, How can pc1 send ping to 192.168.1.255 (it’s a layer 3 broadcast address) and then pc2 receives it on R1 G0/0 interface? As both pc1 and pc2 are in same network MAC (layer 2 broadcast address FFFF) address will be enough for communication right? Is my understanding correct? Please help me to understand better if I’m wrong Thanks !!
@pa32779
6 ай бұрын
Jeremy made an error, look at pinned comment 😊. It's supposed to be 254.
@SBRajuDittakavi
6 ай бұрын
Great ! Thanks for clarification! One more addon question, if the pc1 ping .254 then how it will be revived by pc2? Switch before router to flood the packet to devices? Can you please help me on this as well? I checked the pinned comments but couldn’t find anything related to this..
@chindianajones3742
Жыл бұрын
Some notes on the word "octet". There really is no difference between an octet and a byte. They both typically refer to a sequence of 8 binary values. Historically the word "byte" has not always meant "8 bits", so when you wish to not be ambiguous you can use the word "octet". Otherwise there is no difference. In my experience, byte is more frequently used when talking about things like word size or file size, and octet when talking about data transfer over computer networks.
@harrysingh7797
3 жыл бұрын
Sir please tell the command to see the description of the Router's interface..
@JeremysITLab
3 жыл бұрын
'show interfaces description' should work. It might not work on packet tracer, though.
@Saadi93
Жыл бұрын
Decimal > Binary 221 11011100 false 11011101 true in video at 16:45
@Saadi93
Жыл бұрын
Just saw correction in comment's😂
@trunks10k
Жыл бұрын
something that made me get a AH HA! moment is realizing that the lower the number on the OSI model the closer you are to the source. So physical is the source and the farther you are is how the transmission taking place and what you are doing with said transmission. So Application layer is an app sending out a signal all the way down to the physical layer which is the end device.
@glenntembo2693
4 жыл бұрын
Always thankful J. Appreciated. From Zero to Hero
@JeremysITLab
4 жыл бұрын
Thanks always Glenn!
@mundoin5583
4 жыл бұрын
You are a God send mate. I'm taking CNNA 200-301 without any previous IT experience and it is quite hard I guess at the start but you are making it so much easier, I'm going through your videos even in class as I'm taking CNNA in a language i'm not very proficient. I'm just worried there isn't enough of videos to go through. Im also using the cards and hopefully soon will be able to tip you for all the help .
@muffinbutton1484
4 жыл бұрын
Did you pass?
@mundoin5583
4 жыл бұрын
@@muffinbutton1484 yes now when I look back it all looks like a dream I had eventhough at the time seemed like a mountain I can not climb. Since then I have also passed the Encor exam and in. Few weeks time I get to take Enarsi and then I'm CCNP and about 46k shorter 😜
@muffinbutton1484
4 жыл бұрын
@@mundoin5583 46k shorter?
@mundoin5583
4 жыл бұрын
@@muffinbutton1484 instructor led courses are quite expensive
@jzero1579
3 жыл бұрын
@@mundoin5583 That's extremely impressive. Congrats on your successes. Any jobs?
@dnt2317
2 жыл бұрын
Until I finally understand that it is an IP address and the binary system, you are an excellent teacher, thank you very much. 👏🏻👏🏻👏🏻👏🏻
@dnt2317
2 жыл бұрын
Until I finally understand that it is an IP address and the binary system, you are an excellent teacher, thank you very much. 👏🏻👏🏻👏🏻👏🏻
@Frissdas1207
2 жыл бұрын
I feel obligated to comment on his videos as I watch them. So much passion in each topic. Really helps keep me motivated. I understood the binary perfectly. I am really struggling to grasp how hexadecimal works though. The math isn't clicking for me.
@TomorrowisToday
3 ай бұрын
Thanks for the video. When converting 221 to binary on 15th minute, the answer should be 1 1 0 1 1 1 0 1, because 93-64=29, not 28. So we lost 1. oh, pinned comment actually says that. sorry
@julianwildauer
4 жыл бұрын
So great THX a LOT!!!
@JeremysITLab
4 жыл бұрын
Thanks Julian :)
@bneutralnounprod.4948
3 жыл бұрын
thank you so much sir.
@keasbeydave
3 жыл бұрын
I love the detail with which you explain all the concepts. Your tutorial videos ae the best I've experienced. Thank you for taking the time to create this series.
@JeremysITLab
3 жыл бұрын
Thanks, David :)
@chuc2rk
2 жыл бұрын
Thanks so much your videos! My English is bad but i can hear clearly and understand what you say.
@hamoodj792
22 күн бұрын
This is becoming overwhlming, this video is hard to understand for some reason.
@dhanajon5528
21 күн бұрын
Skill issue
@reuven2010
9 күн бұрын
@@dhanajon5528Whats the point of learning how to calculate binary? it's just 1 google search just copy paste the binary and you get a conversion
@Alberto.81
3 жыл бұрын
is calculator allowed during a cisco test? Or not really needed ?
@JeremysITLab
3 жыл бұрын
Calculators aren't allowed!
@breinermendoza6176
2 жыл бұрын
Great. THANKS!
@dbest19330
3 жыл бұрын
Hi Jeremy, Do have CCNA notes or slides for sale? This will be another good way to support you.
@JeremysITLab
3 жыл бұрын
Not at the moment! After I finish the course I'll think about cleaning up the slides to convert them to PDF and then provide, either for free or a small price :)
@dbest19330
3 жыл бұрын
@@JeremysITLab Awesome 😎
@shadenelsherbiny2885
3 жыл бұрын
Thank you very much
@ZumranHi
4 жыл бұрын
Great work Jeremy. Crystal clear explanation and Thanks... From Sri Lanka.
@felixtanuwijaya8237
3 жыл бұрын
DAY 1 BOOSTING THROUGH YOUR VIDEOS FOR MY NEXT WEEK NETWORKING INTERVIEW WITH NO IT BACKGROUND, this will be painfull. head ache
@JeremysITLab
3 жыл бұрын
Haha I recommend learning network BEFORE applying for the interview
@felixtanuwijaya8237
3 жыл бұрын
All your walkthrough for ccna course is network.... Righttt
@kamilovicftw6810
3 жыл бұрын
and, did you made it? ^^
@sportdailyhighlights
19 күн бұрын
@jeremysITLab at time stamp 28:01, correction: you said "At Class A, there are few possible networks however because the network portion (correction: Host portion) is very long. There will be many hosts in each network" I hope it helps.
@ahmadfaisal6356
3 жыл бұрын
i always hit the like button before watch the video, because i sure your video is great
@MitrixsenCZ
2 жыл бұрын
Hey! Why would we want to break a network into two sub-networks using the router like this? Is it to avoid broadcast frames reaching devices that are not intended to receive the frame? Therefore eliminating unecessary traffic and reducing congestion?
@ikrakoy1902
4 жыл бұрын
Why do we use 2^7 and not 2^8 to get number of networts in class A network? It confuses me.
@JeremysITLab
4 жыл бұрын
'Class A' is defined as all IP addresses with a first bit of '0' (the first bit in the first octet is 0). So, although Class A addresses are /8, because the first bit is fixed as 0, there are only 7 bits you can change to make different networks.
@ikrakoy1902
4 жыл бұрын
@@JeremysITLab Thanks Jeremy. It clears the doubt now. You are the best.
@JohnDoe-101
3 ай бұрын
Wheeeeeeeeeeeeee!
@vishalchandane3565
4 жыл бұрын
Also the quiz number 9 is incorrect in the first octet
@JeremysITLab
4 жыл бұрын
The first octet is correct! It's 00001010, which equals 10 in decimal.
@ahmedsalman5089
3 жыл бұрын
dear sir: kindly i need your support for these notes: frame in layer 2 consist of L2+data+H4+H3+H2 in another figure L2+packet+H2 H2 contains preamble+SFD+Dst+Src+Type/Length L2 contains FCS(CRC) when calculate frame length we exclude preamble and SFD Frame=64 byte - H2+L2(18 byte) = 46 byte packet min size also we said in Type: more than 1500 bytes (type IPv4:2048 and TypeIPv6:34526) Type: 2 byte or 16 bit = 65536 if all above is ok then we said IPv4 is 4 bytes(32 bit) kindly I need to connect these data
@nourkattawi2960
3 жыл бұрын
Hi Jeremy When do we use the network broadcast address like 192.168.1.255 and when do we use the 255.255.255.255 address? Thanks
@JeremysITLab
3 жыл бұрын
As a network engineer you don't really have to worry about it (protocols/applications decide which to use automatically). But usually for local broadcasts (in the same subnet) 255.255.255.255 is used, and for targeted broadcasts (sent to another subnet) the network broadcast address is used.
@nourkattawi2960
3 жыл бұрын
Thanks :)
@BlackNWhiter
3 жыл бұрын
at 16:59 93-64=29 instead of 28 I was mindfucked how an odd number have the last bit 0 XD
@ajazkhanday
2 ай бұрын
respected sir while converting decimal 221 to binary, you did a wrong calculation. Actual binary number for 221 is 11011101
@JackSparrow-gy4gc
4 жыл бұрын
Thanx jeremy...i am from india and i am finance professional .. I always found IT very difficult...but it seems i am about to add one more skill to my portfolio ..thanx to you sir👍
Пікірлер: 746