JNCIA-Cloud: Juniper Networks Certified Associate – Cloud (2021) — Question 9

Which statement is correct about an overlay network?

Answer options

• A. An overlay network requires the CLOS architecture.
• B. An overlay network must have switches interconnected in a spine-leaf implementation.
• C. An overlay network requires an OSPF area.
• D. An overlay network uses tunneling technologies.

Correct answer: D

Explanation

The correct answer is D because overlay networks utilize tunneling technologies to create virtual networks on top of existing infrastructure. Options A, B, and C are incorrect as they refer to specific architectures and protocols that are not requirements for the functionality of an overlay network.