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So I was going through a book on Computer Networks by James Kurose and Keith Ross on page 627 line 16 under the topic HTTP streaming and DASH the authors have mentioned that

With DASH each video version is stored in the HTTP server, each with a different URL.

However on youtube for each version of the video we find the same URL. Can someone explain me what the authors really mean or is it something different.

Any help would be highly appreciated.

closed as off-topic by Ron Trunk, JFL, Ron Maupin Dec 28 '18 at 17:50

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "NE is a site for to ask and provide answers about professionally managed networks in a business environment. Your question falls outside the areas our community decided are on topic. Please visit the help center for more details. If you disagree with this closure, please ask on Network Engineering Meta." – Ron Trunk, JFL, Ron Maupin
If this question can be reworded to fit the rules in the help center, please edit the question.

  • Unfortunately, questions about protocols above OSi layer-4 are off-topic here. – Ron Maupin Dec 28 '18 at 17:50
  • @RonMaupin Can I ask why did you guyz decided so. I mean The name is network engineering means all type of question related to networking can be asked here. It does'nt make sense as to accept only some parts of OSI layer. I mean all the 7 parts are related to computer networking then why so specific. Ok One day I will be the moderator of this site and will vote for the acceptance of all layers in the Open Systems Interconnection model. – Himanshu Poddar Dec 28 '18 at 17:57
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    "The name is network engineering means all type of question related to networking can be asked here." No, it doesn't. Every SE site has a What topics can I ask about here? page, and ours, under the Off-Topic section, says "protocols above L4 in the OSI model (e.g. HTTP, FTP, etc)." – Ron Maupin Dec 28 '18 at 18:00
  • The community decides what is on or off topic here. In fact, there is currently a debate on Network Engineering Meta to see if we want to change what is allowed. – Ron Maupin Dec 28 '18 at 18:03
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You are probably reading an obsolete edition of the book. Newer editions have different text. As the name implies, DASH allows the client to dynamically select a different data rate.

  • Thats the sixth edition 2017 version I have which I think is the latest version – Himanshu Poddar Dec 28 '18 at 16:37
  • DASH is a part of HTTP, and so is sadly off-topic here. You can try asking about it on Server Fault or Super User. – Ron Trunk Dec 28 '18 at 16:49
  • But HTTP is related to networking too. Please don't close my question. – Himanshu Poddar Dec 28 '18 at 16:55
  • The community decided that protocols above the transport layer are off-topic here. The other sites I mentioned are a better fit for this question. – Ron Trunk Dec 28 '18 at 17:32
  • Networking is a really broad term. Keep in mind that this site is about network engineering, not about networking in a general sense. As explain by Ron, HTTP, like many other thins related to network is off-topic here. – JFL Dec 28 '18 at 17:50

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