JN0-214: Cloud, Associate (JNCIA-Cloud)Demo

By Juniper · Question Mode

QuestionQ21

Cloud Infrastructure (NFV and SDN)

Which two statements are true about an underlay network?

Choose two
  • 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.
  • C The underlay network is the virtual network used to connect multiple virtual machines (VMs).
  • D The underlay network is built using encapsulations tunnels.
Explanation

An underlay network supplies the foundational physical connectivity for an overlay and can be implemented with Layer 2 or Layer 3 connectivity. A Layer 3 underlay uses routing protocols, such as BGP or OSPF, to establish IP reachability. Virtual networks and encapsulation tunnels are overlay constructs, not the underlay.

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