300-415 Question 76
Select 3An enterprise is planning to deploy Cisco SD-WAN controllers in a cloud-hosted environment. Which of the following considerations must be accounted for during the deployment process?
- A
Ensure that the vManage, vSmart, and vBond controllers have public IP addresses or are reachable over the internet.
- B
Deploy the controllers in a single availability zone to minimize latency between them.
- C
Set up DNS and certificates for secure communication between the controllers and SD-WAN edge devices.
- D
Use a cloud provider-supported instance type that meets the recommended resource requirements for each controller.
- E
Configure the controllers to allow direct communication with each other using private IP addresses only.
Show answer and explanation
Correct answers: A, C, D
Explanation
When deploying Cisco SD-WAN controllers in a cloud-hosted environment, public internet reachability, proper DNS and certificate setup, and sufficient cloud infrastructure resources are key considerations. Ensuring reachability and secure communication between controllers and edge devices is essential for a functional SD-WAN solution. High availability is also important, so deploying across multiple availability zones is typically recommended.
- A. Correct.
Correct: In a cloud deployment, controllers like vManage, vSmart, and vBond need to be reachable over the internet to establish secure communication with the SD-WAN edge devices. This often involves assigning public IPs or configuring NAT rules.
- B. Incorrect.
Incorrect: Deploying all controllers in a single availability zone increases the risk of downtime in case of a failure in that specific zone. High availability typically requires deployment across multiple zones.
- C. Correct.
Correct: DNS and certificates are critical for secure communication between controllers and edge devices. This ensures proper authentication and secure management of the SD-WAN fabric.
- D. Correct.
Correct: Each controller has specific resource requirements (e.g., CPU, memory, and storage), and these must be met to ensure optimal performance in the cloud environment.
- E. Incorrect.
Incorrect: While private IPs can be used for communication between controllers in certain scenarios, they must still be reachable by edge devices, which often requires public IPs or NAT rules. Additionally, private-only communication does not meet all deployment requirements for cloud-hosted controllers.