Designing Cisco Enterprise Networks (ENSLD) — Question 141

What is the purpose of a Cisco SD-Access underlay network?

Answer options

• A. to abstract IP-based connectivity from physical connectivity
• B. to emulate LAN segments to transport Layer 2 frames over a Layer 3 network
• C. to establish physical connectivity between switches and routers
• D. to provide virtualization by encapsulating network traffic over IP tunnels

Correct answer: C

Explanation

The correct answer is C, as the underlay network is responsible for providing the physical connections that link switches and routers together. Options A, B, and D describe functions associated with the overlay network or other aspects of networking, but do not pertain to the primary role of the underlay in establishing physical connectivity.