In the NSX architecture, what key technology is used to decouple the physical network layer
from the virtual infrastructure?
A.
Network Hypervisors
B.
VPNs and Edge Gateways
C.
VirtualSwitches
D.
Overlays such asVXLANs
what key technology is used to decouple the physical network layer from the virtual infrastructure?
In the NSX architecture, what key technology is used to decouple the physical network layer
from the virtual infrastructure?
Ans is C as the physical network terminates at the ESXi host and further connected to vSwitch?!
This one is going to be D, overlays like VXLAN. Stated under NSX-v Functional Components in the design guide
https://www.vmware.com/files/pdf/products/nsx/vmw-nsx-network-virtualization-design-guide.pdf
Network Hypervisors
With network virtualization, the functional equivalent of a “network hypervisor”
reproduces layer 2 to layer 7 networking services (e.g., switching, routing,
firewalling, and load balancing) in software. These services can then be programmatically assembled in any arbitrary combination, producin gunique,
isolated virtual networks in a matter of seconds
https://www.vmware.com/files/pdf/products/nsx/vmw-nsx-network-virtualization-design-guide.pdf
D
D cause we are talking about what makes it possible to decouple physical from virtual and that is from encapsulating and decapsulating from VXLAN that makes it possible.
I would choose D
The deployment of overlay technologies has become very popular because of their capabilities in decoupling connectivity in the logical space from the physical network infrastructure.
Based on page 18 of
https://www.vmware.com/files/pdf/products/nsx/vmw-nsx-network-virtualization-design-guide.pdf
Correct answer is A network hypervisor which is VMware NSX
https://developercenter.vmware.com/nsx-for-vsphere/nsx-network-hypervisor
The answer is B:
Along with the ability to create on-demand logical networks using VXLAN, the NSX Edge Services Gateway helps users deploy various logical network services such as firewall, DHCP, NAT and load balancing on these networks. This is possible due to its ability to decouple the virtual network from the physical network and then reproduce the properties and services in the virtual environment.
reference:
http://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/products/nsx/vmw-nsx-network-virtualization-design-guide.pdf
A