What is DNS (Domain Name System)?

ummm is she writing backwards???

Am I the only one who noticed that she's writing backwards?

Great video.

Very clear, great explanation and clear voice. Thank you Pooja.

thank you...very well articulated.

thank you very much ❤

Thanks Pooja . Hope we get more videos of this kind

Awesome explanation, thank you!

Hi
I have a qs
You said that after accessing the tld we will request the domain server to get it's up using it's DNS records
But I think it's redundant because we have the domain first and we can use it to send the request to it to get the main IP address
But I don't know why we are working like this ?

Smooth flow and easy to follow thanks Pooja from IBM

Great indeed very helpful......love it💌💌

Perfect

How is she doing this, how did you guys recorded this, how can she write and draw everything mirrored. Great video so far btw.

I'm currently in school and this break down and visual was awesome!! I"m a visual learner so this helped me tremendously!!! THANK YOU! Will definitely be coming back to learn more!!

Great explanation with ingenious visuals of showing the writing of the code and the instructor's facing the audience! Brilliant. I learn so much about DNS resolution from this video! ❤

Thanks, Pooja! Nicely done!

thank you excellent explanation

thank you so much for this perfect explanation mam

Thanks Pooja

Thank you Pooja, your explanation was very clear!👍😊

Great explanation!!

really great explanation!! thank you so much!

when one gets a "host not found" error, what part of this diagram causes that error? Is it when the host that one is looking for does not exist in the Auth Name Server so no IP address is sent by Auth Name Server?

Good presentation, however, u didn't mention about the Host file which will be checked first before the cache

I trust you because you are Indian.

just wonder how she wrote that reversely???

Thank you so much, you did a justice to the topic.

Thank you for the concise explanation. Really helps to visualize it. Now I can start reading some references to learn it more in detail

perfect tutorial!

Great job but i am not sure if it's correct to say that we have 100s of root server. We have 13 root servers starting from A to M. While these servers may have replicas going on but as far as i know there are only 13 root servers.

Great video, was prepping for an interview and it helped a lot :)

Love the presentation. Clear and precise

Just a correction 4.30 - 13 Root Name Servers run by 12 organizations with 1553 instances Worldwide

Awesome video! i understand what a dns is now!! Thank You

Why can't dns resolver send request directly authoritative server instead of root server, tld ? Or directly ro tld instead of root server? How many authoritative servers available? If it's relatively less, dns revolvers can store ip addres of tld or authoritative server to directly get the ip address?

I loved the way you explained! Very good!

Neat, clear and easy to understand..thank you

Really proud of the women in CS! Excellent explanation 🥰

Which technology or devices you used for this presentation. Specifically the drawing. I liked a lot.

Do you know how long does the ip address stay in the cache of the DNS resolver?

Wow!! one of the best explanation of DNS I've ever seen <3 kudos!!

Hi Pooja, thanks for sharing the video.Quite informative.

i think also the OS has a dns records cache, right? thanks for the video

Great explanation, you made it easier and very detailed!

awesome

Perfect thank you pooja 👍

Can she make more videos??

Excellent thank you so much

very well explained miss, is the ip address of the websites cached on our browser ( client side as well ) or only on the dns resolver ?

Very good explanation!