300-415 Question #240: Real Exam Question with Answer & Explanation

Question

Options

• ASoftware upgrade operation in the group must include vManage, vBond, and vSmart.
• BSoftware downgrades are unsupported for vManage.
• CSoftware images must be uploaded to vManage through HTTP or FTP.
• DSoftware images must be transferred through VPN 512 or VPN 0 of vManage.

Explanation

Software images for Cisco SD-WAN devices are managed by first uploading them to the vManage controller, typically using HTTP or FTP, before they can be deployed to the fabric's nodes.

Common mistakes.

• A. While vManage, vBond, and vSmart are often upgraded in a specific sequence, the statement that every software upgrade operation must include all three as a group is not always true for all scenarios, and does not describe how software is managed.
• B. Software downgrades are supported for vManage and other Cisco SD-WAN components to allow for rollbacks if an upgrade introduces issues.
• D. Software images are transferred from vManage to devices over the control plane tunnels (typically VPN 0), but the initial upload to vManage is typically via HTTP/FTP. VPN 512 is for out-of-band management traffic, not primary software distribution.

Concept tested. SD-WAN software image management

Reference. https://www.cisco.com/c/en/us/td/docs/routers/sdwan/command/sdwan-monitor-command-ref/m_upgrading_software.html

No community discussion yet for this question.