Designing Cisco Data Center Infrastructure (DCID) — Question 84

An engineer must interconnect customer data centers by using a 10-Gbps, unicast-only, Layer 3 circuit. The requirement is to stretch the Layer 2 connection over the tunnel, isolate STP traffic, and create more than two million logical network segments. Which solution meets these requirements?

Answer options

• A. IPsec over GRE
• B. OTV
• C. VXLAN EVPN
• D. dark fiber

Correct answer: C

Explanation

The correct answer is C, VXLAN EVPN, as it supports the creation of over two million logical segments while facilitating Layer 2 connectivity over Layer 3 networks. Options A (IPsec over GRE) and B (OTV) do not provide the necessary scalability for logical segments, and D (dark fiber) does not address the Layer 2 stretching requirement.