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Exam 350-901 topic 1 question 206 discussion

Actual exam question from Cisco's 350-901
Question #: 206
Topic #: 1
[All 350-901 Questions]

A heterogeneous network of vendors and device types needs automating for better efficiency and to enable future automated testing. The network consists of switches, routers, firewalls and load balancers from different vendors, however they all support the NETCONF/RESTCONF configuration standards and the YAML models with every feature the business requires. The business is looking for a buy versus build solution because they cannot dedicate engineering resources, and they need configuration diff and rollback functionality from day 1.
Which configuration management for automation tooling is needed for this solution?

  • A. Ansible
  • B. Ansible and Terraform
  • C. NSO
  • D. Terraform
  • E. Ansible and NSO
Show Suggested Answer Hide Answer
Suggested Answer: C 🗳️
by JCGO at July 15, 2020, 4:02 p.m.

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JCGO
Highly Voted 4 years, 3 months ago
C for me. NSO without Ansible. NSO is for all that stuff in question. and 'buy versus build'
upvoted 16 times
B3nd3cida
3 years, 5 months ago
Yes, C seems the more correct. Since Ansible lack of rolleback.
upvoted 1 times
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romanknet
3 years, 6 months ago
Does NSO work with YAML? For me YAML points to Ansible, diff and rollback to NSO. You can buy both: NSO from Cisco and Ansible from RedHat - https://www.ansible.com/products/pricing.
upvoted 2 times
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leonmflai4exam
Highly Voted 4 years, 3 months ago
Is it E? https://www.cisco.com/c/dam/m/en_us/network-intelligence/service-provider/digital-transformation/knowledge-network-webinars/pdfs/1012-oaa-ckn.pdf
upvoted 12 times
Teringzooi
2 years, 1 month ago
No, NSO can do all without ansible. And it's buy versus build. Buy NSO.
upvoted 1 times
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rhmgh
2 years, 8 months ago
I agree wih E. This presentation is clear.
upvoted 1 times
Teringzooi
2 years, 1 month ago
No, not true. Just NSO.
upvoted 1 times
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razvan999
Most Recent 10 months, 3 weeks ago
C - but after seeing the price probably will go with another one :)
upvoted 1 times
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Teringzooi
2 years, 1 month ago
Selected Answer: C
correct answer: C Cisco NSO.
upvoted 2 times
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__al__
2 years, 7 months ago
This is where Cisco rubs "hypocrite" on our faces! I doubt anyone thinks NSO is good for anything other than Cisco (and maybe not even that), however, because this is a Cisco certification, you kind of have to concede that whatever Cisco offering is the best option out there... So yeah, pick NSO and shut up.
upvoted 4 times
__al__
2 years, 7 months ago
That said... A few things there points to Ansible... but still, NSO MUST be in the answer because it is Cisco. Hence, I would go with E: Ansible & NSO. (But seriously, don't waste your time and money with NSO)
upvoted 1 times
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udo2020
2 years, 8 months ago
It is definitiv C: https://developer.cisco.com/docs/nso/#!core-concepts/core-concepts
upvoted 2 times
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[Removed]
2 years, 10 months ago
I go for E Ansible support "diff" functionality but not rollingback NSO support Both
upvoted 1 times
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djv_exam
3 years, 4 months ago
I believe that the correct answer is E (NSO + Ansible) although I would never recommend this. We could address the requisites with Ansible and the adoption of Git based operations for the diff and rollback. And the cost for NSO is really really high, probably only suited for ISP. But a being a cisco exam I will go with E :)
upvoted 3 times
djv_exam
3 years, 4 months ago
I was reviewing this question and in fact it say "YAML model" YAML is not a model YANG is a model, so the question is probably wrong and if it is YANG in the question I will choose C. I will go with C (believing that YAML is not in the question...)
upvoted 3 times
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phc1978
3 years, 5 months ago
Answer :- E Ansible Supports - NETCONF/RESTCONF,YAML models NSO supports - configuration diff and rollback functionality
upvoted 1 times
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architect_
3 years, 5 months ago
Maybe where it says YAML it should say YANG?
upvoted 3 times
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architect_
3 years, 5 months ago
I'd go with C as well. https://www.ciscolive.com/c/dam/r/ciscolive/emea/docs/2020/pdf/DEVLIT-4019.pdf
upvoted 1 times
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Bloody_sausage
4 years ago
It'e E: https://www.cisco.com/c/dam/m/en_us/network-intelligence/service-provider/digital-transformation/knowledge-network-webinars/pdfs/1012-oaa-ckn.pdf
upvoted 5 times
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snowfly
4 years, 1 month ago
Maybe Ansible can use the backup and restore playbook to implement rollback function ?
upvoted 1 times
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blezzzo
4 years, 2 months ago
I will go with NSO on this one. Ansible does not support rollbacks. ----------- No, there is no global functionality for a rollback. You have to add a new play that reverses the action of the other one. ------------
upvoted 2 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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