Implementing Cisco SD-WAN Solutions (ENSDWI) — Question 145

What is the procedure to upgrade all Cisco SD-WAN devices to a recent version?

Answer options

• A. The upgrade is performed for a group of WAN Edge devices first to ensure data-plane availability when other controllers are being updated.
• B. Upgrade and reboot are performed first on vManage, then on vBond, then on vSmart, and finally on the Cisco WAN Edge devices.
• C. The upgrade is performed first on vManage, then on WAN Edge devices, then on vBond, and finally on vSmart. The reboot must start from WAN Edge devices.
• D. Upgrade and reboot are performed first on vBond, then on vSmart, and finally on the Cisco WAN Edge devices.

Correct answer: B

Explanation

The correct answer is B because the upgrade procedure mandates that vManage is updated and rebooted first, followed by vBond and vSmart, ensuring proper management and control over the WAN Edge devices. Options A, C, and D do not follow the correct order for upgrading, which can lead to management issues or downtime.