JN0-214 · Question #6
Which two statements are correct about an underlay network? (Choose two.)
The correct answer is A. An underlay network can be built using either Layer 2 or Layer 3 connectivity. B. A Layer 3 underlay network uses routing protocols to provide IP connectivity. Option A: Underlay networks can operate at both Layer 2 (switching) and Layer 3 (routing). Layer 2: Uses Ethernet switching to forward traffic within a single broadcast domain. Layer 3: Uses IP routing to forward traffic across multiple subnets or networks. Option B: In a Layer…
Question
Which two statements are correct about an underlay network? (Choose two.)
Options
- AAn underlay network can be built using either Layer 2 or Layer 3 connectivity.
- BA Layer 3 underlay network uses routing protocols to provide IP connectivity.
- CThe underlay network is the virtual network used to connect multiple virtual machines (VMs).
- DThe underlay network is built using encapsulations tunnels.
How the community answered
(22 responses)- A77% (17)
- C18% (4)
- D5% (1)
Explanation
Option A: Underlay networks can operate at both Layer 2 (switching) and Layer 3 (routing). Layer 2: Uses Ethernet switching to forward traffic within a single broadcast domain. Layer 3: Uses IP routing to forward traffic across multiple subnets or networks. Option B: In a Layer 3 underlay network, routing protocols like OSPF, BGP, or EIGRP are used to exchange routing information and ensure IP connectivity between devices. This is common in large-scale cloud environments where scalability and segmentation are critical.
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