352-001 · Question #631
An enterprise campus is adopting a network virtualization design solution with these requirements: - It must include the ability to virtualize the data plane and control plane by using VLANs and VRFs
The correct answer is A. Path isolation D. Services virtualization. Network virtualization designs using VLANs and VRFs for data and control plane separation, with resources grouped at the access edge, fall into the path isolation and services virtualization categories.
Question
An enterprise campus is adopting a network virtualization design solution with these requirements:
- It must include the ability to virtualize the data plane and control
plane by using VLANs and VRFs
- It must maintain end-to-end logical path transport separation across
the network
- Resources available grouped at the access edge
Which two primary models can this network virtualization design be categorized? (Choose two)
Options
- APath isolation
- BSession isolation
- CGroup virtualization
- DServices virtualization
- EEdge isolation
How the community answered
(71 responses)- A82% (58)
- B3% (2)
- C6% (4)
- E10% (7)
Why each option
Network virtualization designs using VLANs and VRFs for data and control plane separation, with resources grouped at the access edge, fall into the path isolation and services virtualization categories.
Path isolation uses VLANs to virtualize the data plane and VRFs to virtualize the control plane, directly satisfying the requirement for end-to-end logical path transport separation across the network.
Session isolation is not a recognized primary model in Cisco's network virtualization framework and does not describe the VLAN- and VRF-based plane separation outlined in the requirements.
Group virtualization refers to aggregating physical devices into logical groups but does not specifically address data plane and control plane separation via VLANs and VRFs.
Services virtualization addresses the grouping of network resources and services at the access edge, complementing path isolation by defining how services are logically organized and presented within the virtualized network design.
Edge isolation is not a defined primary category in Cisco's network virtualization design models and does not map to the end-to-end logical transport separation requirements described.
Concept tested: Network virtualization models - path isolation and services virtualization
Source: https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Network_Virtualization/PathIsolation.html
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