you can answer this question without even knowing thing about SD-WAN. this question is boasting about cisco technologies, only answer A seems to be pejorative so it would apply to standard SD-WAN, not GODLIKE CISCO SD-WAN SOLUTION.
A is correct
Compared to traditional WAN deployment, SD-WAN enables enterprises to deploy wide area networks 100x faster with 3x the cost-savings.
https://sase.vmware.com/sd-wan/sd-wan-vs-traditional-wan#:~:text=Compared%20to%20traditional%20WAN%20deployment%2C%20SD%2DWAN%20enables%20enterprises%20to%20deploy%20wide%20area%20networks%20100x%20faster%20with%203x%20the%20cost%2Dsavings.
I think A because B is listed as an SD-WAN characteristic on https://www.cisco.com/c/en/us/solutions/enterprise-networks/sd-wan/what-is-sd-wan.html#~benefits
"A single, centralized, cloud-delivered management dashboard for configuration and management of WAN, cloud, and security"
B
https://www.geeksforgeeks.org/difference-between-traditional-wan-and-sd-wan/
Security: Traditional WANs are typically highly secure, as they use dedicated circuits and leased lines to ensure data confidentiality and integrity.
Reliability: Traditional WANs offer reliable connectivity, as they use dedicated circuits that are typically highly available and have low latency.
Control: Traditional WANs offer complete control over network traffic, allowing organizations to prioritize certain types of traffic over others and configure routing policies as needed.
this is really strange , look at this question from dumps i have:
what is a characteristic of a traditional WAN?
A low complexity and high overall solution scale.
B centralized reachability,security, and application policies.
C operates over DTLS and TLS authenticated and secure tunnel.
D unified data plane and control plane.
and they put B as a correct answer , suprise !!!
from my personal experience Cisco's SD-WAN solution can be a real sh!t show and ends up taking more time than traditional WAN. But obviously that's not the answer they're looking for :)
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