350-401 Question #333: Real Exam Question with Answer & Explanation

Question

Which two results occur if Cisco DNA Center loses connectivity to devices in the SD-Access fabric? (Choose two )

Options

• AAll devices reload after detecting loss of connection to Cisco DNA Center
• BAlready connected users are unaffected, bu new users cannot connect
• CUser connectivity is unaffected.
• DCisco DNA Center is unable to collect monitoring data in Assurance.
• EUsers lose connectivity

Explanation

SD-Access Fabric: DNA Center Connectivity Loss

In an SD-Access fabric, the control plane and data plane operate independently of Cisco DNA Center. This means that if DNA Center loses connectivity to fabric devices, user traffic continues to flow normally (Option C), because the fabric devices maintain their forwarding tables and policies locally. However, DNA Center cannot collect telemetry or monitoring data (Option D), since Assurance relies on an active connection to gather real-time network insights.

Why the distractors are wrong:

• A is incorrect - devices do not reload; they continue operating autonomously using their existing configurations.
• B is incorrect - new users can still connect, because authentication and policy enforcement happen at the fabric edge, not through DNA Center directly.
• E is incorrect - existing and new users maintain connectivity, as the fabric functions independently of the management plane.

💡 Memory Tip: Think of DNA Center as a manager, not an operator. If the manager is unavailable, the workers (fabric devices) keep doing their jobs - but the manager can no longer watch what's happening (no Assurance data). The network runs itself; DNA Center just monitors and manages it.

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