6:05 DNS can use either UDP or TCP. In both cases the well-known port used by the server is port 53. UDP is used when the size of the response message is less than 512 bytes because most UDP packages have a 512-byte packet size limit. If the size of the response message is more than 512 bytes, a TCP connection is used.
DNS uses both TCP for Zone transfers & UDP for Name queries. So anything with data greater than 512 bytes we use TCP. Rest we use UDP. Also UDP port 53 is used on server end.
You have very good teaching and explaining skills, but you should also add a web browser cache and PC host file in this packet flow. IMPORTANT - DNS uses both TCP and UDP protocols. if there is packet loss while using UDP then DNS uses TCP protocol.
Honest suggestion: Sir aapki theory explanation is very excellent🔥🔥.. But sir it is not sufficent for doing comptetive question(gate).. Please sir numerical ke upar bhi video upload kiya karo
For computer security you should watch videos of S R Computer education and lecture will be given by Mr. Shayju Raju ... I hope this will work and all the best for your Computer Security 😊
6:05 DNS can use either UDP or TCP. In both cases the well-known port used by the server
is port 53. UDP is used when the size of the response message is less than 512 bytes because most UDP packages have a 512-byte packet size limit. If the size of the response message is more than 512 bytes, a TCP connection is used.
Yes in made easy book also found that ..it uses both tcp and udp @port no. 53
@@mehtajee1124 its there in kurose 7th ed, however for the most part UDP is used
@@rishabhdas5576 bro i dont hv muchh knwldge in this domains..
I m studnt of ece nd i studied that it uses both..☺️😊👍
that's why i always go thru the comments
Hi@@mehtajee1124
DNS uses both TCP for Zone transfers & UDP for Name queries.
So anything with data greater than 512 bytes we use TCP. Rest we use UDP.
Also UDP port 53 is used on server end.
Hello Sir , DNS uses TCP for Zone transferring and UDP for name resolving
You have very good teaching and explaining skills, but you should also add a web browser cache and PC host file in this packet flow.
IMPORTANT - DNS uses both TCP and UDP protocols. if there is packet loss while using UDP then DNS uses TCP protocol.
Dil se love you bde bhai , pure top level ka exam deke aya hu sirf teri bdolt🍀🫂
great explanation sir, helped me complete the unit
Very nice explanation sir
Cleared all the concept of DNS.
Thank you so much sir.🙏🙏👌🏻👌🏻
Outstanding .excellent lecture
One thing I wanna add DNS protocol uses UDP at Port number 53.
U made DNS so easy to learn. God bless u🙏
Rab rakha
Upload more videos and complete this subject sir. We all are waiting.
And thanks for such an easy explanation.
Well explained sir ,your explanation are too good simple and easy to learn.
BAHUT SAHI ....BHAI........KEEP IT UP.......WE ARE HERE TO LISTEN YOU.....
Sir bahut badhiya.
Finally I understand DNS properly.
Very good explanation sir, thank you very much😄😄
Varun sir currently i am master of computer applications students (University topper) and i also want to become like you sab subjects achhse padhana ❤
Zabardast explanation
Sir you have helped me more than my teacher. Thank you very much!
Aur videos banao sir computer networks ki Abhi tak saare concepts aapne bahut he easy way main samajhadiye
Perfect explanation sirji.......
Thank you for this video, its very simple to understand.
best explanation of the topic love and respect from usa
Always to the point and clear. Thanks!!!
Very good explanation thank you sir👌👌👌
nice explanation sir 😊 easy to understand 😊
Very informative channel
Mind blowing lecture Bhai
Very beautiful explanation for everyone
What a explaination woh!!!!!!!!!!!!!
❤️❤️thank you sir your teaching was awsome
Sir aaj Mera paper tha bca ka Sara apka pdhaya hua aya thanks sir👌👌👌 apki video ne bahut help ki Meri thanks sir again👍👍
Ohhh great.. Wish you a very happy and successful year ahead
@@GateSmashers same to you sir💐💐💐💐
Now I totally understand this topic of DNS
You are an excellent tutor..
It was very productive to see this video
Sir plz complete computer network
"Brilliant work sir g ap k lectures ny mughy bohat help kia 3 books me thank you so much" Noor
Loved the way of explanation 👌 👍
Sir, DNS uses both tcp and udp. But it uses udp for names queries and short information less than 512 bytes
Excellent and very clean
Totally understandable sir tooo good ✌️✌️
Great explanation sir it is very clear👍
Sir please make videos on Routing protocols
Honest suggestion:
Sir aapki theory explanation is very excellent🔥🔥..
But sir it is not sufficent for doing comptetive question(gate)..
Please sir numerical ke upar bhi video upload kiya karo
Great explanation thanks sir!
again gazab
mehngi lagi
achha laga
keep it up
Good lec....but not enough for gate
What a explaination wohhhh❤
superb explanation sir ...
jai hind
Ciitraa gat batt bro 👌👌👌
sir great job and really appreciate
hello sir.. please complete all the topics of this subject...
Thank you sir 🙏🏻
Nice explanation. 1question though who or what resides if recursive or iterative resolution will be used by my browser?
Thanks sir 💖
Wel explain sir love from Pakistan 🇵🇰❤️
Isme aur videos abhi add honge naa??.. When do you upload your videos sir??
Amazing explanation. Thank you.
very nice sir
Sir aap plz trouble shooting and dynamic host configuration protocol bhi explain kar degey plz sir
sir GATE exam se pahle pure lecture upload karo
Very well explained 👌Sir... 😊
Awesome 🙏🙏
sir please complete the course ..i only want you to explain whole cn..sir plzz
well explained.
Nice Guruji
Thankyou sir
Tq bro
Awesome 👍👍
Great explanation ◉‿◉
Sir start to learn the course like google IT Certification so people will get the help in their own language.
Sir please make video on computer network's important topic for gate specially for 2 marks type question
excellent ..
Thanks sir g 👍
Nice
awesome youtube channel...please upload your videos in sequence in Sir.
Nice one sir
Dude ! Its killer :) Great job !
Good desicion
Thank you.
Sir please tell me where local cache is store?????
✌✌
bhut shi
gate smasher wowww ramu ughhhh
Sir in my phone there is a option called DNS , when I customised it to adguard.dns the advertisement of 3 party apps are blocked. How this works ?
Thank you!
Thank you sir
Thank u so much sir
👍👍👍👍👍
wow it is a awesome job ..thank you so much.
thx sirrr
Then what are primary and secondary dns server root and top lever or ??? Please hlp
Sir plz 6th sem k liye computer network security ki video bnao
For computer security you should watch videos of S R Computer education and lecture will be given by Mr. Shayju Raju ... I hope this will work and all the best for your Computer Security 😊
very nice
Ur awesome man ❤️
Thank u very much
we generally delete the cache of the apps so what happen in this case ?
thanks sir.....
Thank you From bd
Sir plz other videos for diploma books
nai shirtt❤