The two editions are very similar. The CCDE Learning Matrix references the one you already posted, the 3rd edition, but you can find very similar content in the 4th.
I would not buy the 4th if you already have access to the 3rd. If it's a new buy, go for the 4th. That's my advice.
Good luck in your studies.
The link is redirecting to a different book now.
The text says, Designing Cisco Network Service Architectures (ARCH) Foundation Learning Guide: (CCDP ARCH 642-874), 3rd Edition.
But when you click the link, it goes to this.
TISO:DESIGNING CISCO NTW SER ARC_c3, 3rd Edition
Let me start with a bit of history on the CCDE Learning Matrix. The goal was to match each blueprint topic with some learning resource. In the case of books, we mapped the chapter of the book that covered each specific blueprint topic. Some topics covered by the v3 of the Designing Cisco Network Service Architectures (ARCH) Foundation Learning Guide: (CCDP ARCH 642-874) by John Tiso align with the written blueprint one-to-one, such as switch clustering, redundancy, segmentation aligning with chapter 2. BTW I strongly recommend that you start approaching the Learning Matrix by self-evaluating.
Now, v4 of the Designing Cisco Network Service Architectures (ARCH) Foundation Learning Guide: (CCDP ARCH 642-874) by Marwan Al-Shawi and Andre Laurent touches on different subjects than v3 does, and does not map to the CCDE written blueprint although it is a good resource for the CCDE practical exam.
So my answer to which one would you get is "it depends" on where you are on your journey towards CCDE. Preparing for the written AND needing to improve on the technologies part of the written blueprint that v3 covers, get v3. Otherwise get v4.
Hope I got my point across and it helps you on your decision.
It's a good choice too. That way you're aligned with the Learning Matrix.
If you have enough time, I would recommend you to do what Elaine said: evaluate yourself. I would add... and get uncomfortable. Get out of your comfort zone. If you are comfortable and you avoid off-road tracks, you're going to get some flat tires once you change your way and get into the unpaved zone.
Thanks Juan. Studying CCDE is a really different animal for me. I have been studying CCIE R&S for the longest time but due to personal reasons I didn't pursue after failing a few times. I have been off studying for couple of years and CCDE is putting me back on track. I just need to arrange my thoughts and attack each topic systematically. Right now I am still trying to find the rhythm or the correct approach but I hope I can find it soon. Looking at the topics is a bit discouraging at times but I will go for it.
Yes, it's completely different. If you studied previously IE R&S topics, I'm sure that will help you to understand some of the technologies included in the DE blueprint, because it has much in common, specially in the routing protocols section. But try to evolve your mindset and focus on the design topics, not in the implementation and operational details. Practice smart-studying
Don't hesitate to get in touch or leave your questions in this study group. There are design expert around that can help.
- Thanks a bunch. That's what I have been practicing as I am an implementation engineer by nature and always curious how to make things work by means of actually doing it. It's actually a struggle to change that kind of behavior but this has to change and focus on what's more important. I really need that tip of yours of "smart studying". I would focus more on the matrix and make my own notes.
After the DE techtorial in Barcelona, I realized that one of the most important things to face the exam successfully was the change in the design mindset. It takes some time to IEs and engineers in any discipline, used to the low level designs in their daily work.
It helped me a lot to get a completely new perspective and progress in my studies and I hope it'll help much more people.
in my humble opinion, the 4th edition is more relevant to the DE, because it has updated info, the team worked on it all are CCDEs, as well as more details around L3 routing and network security design as well as DC and DCI design are added
that being said you may find some topics in the 3rd might be useful depends on the knowledge gaps that you need to fill
Hope this helps