300-170 · Question #25
In an ACf Fabric, which two statements about contexts are true? (Choose two.)
The correct answer is A. A VRF defines a Layer 3 address domain B. A tenant can contain multiple VRFs. VRF instances in ACI define isolated Layer 3 address domains, and a single tenant can house multiple VRFs to segment different routing contexts.
Question
In an ACf Fabric, which two statements about contexts are true? (Choose two.)
Options
- AA VRF defines a Layer 3 address domain
- BA tenant can contain multiple VRFs
- CIn traditional networking, a VRF is equivalent to a VDC
- DA tenant can contain only a single VRF.
- EA VRF defines a Layer 2 address domain.
How the community answered
(36 responses)- A86% (31)
- C3% (1)
- D8% (3)
- E3% (1)
Why each option
VRF instances in ACI define isolated Layer 3 address domains, and a single tenant can house multiple VRFs to segment different routing contexts.
A VRF (Virtual Routing and Forwarding) in ACI acts as a unique routing instance, providing an isolated Layer 3 address domain with its own routing and forwarding tables, distinct from other VRFs.
An ACI tenant is a logical container for policies, and it can indeed include multiple VRF instances to separate different Layer 3 routing domains within the same organizational entity.
A VRF in ACI is a Layer 3 routing instance, while a VDC (Virtual Device Context) in traditional Nexus is a virtualized instance of a physical switch, making them not equivalent.
A tenant can contain multiple VRFs, allowing for logical segmentation of Layer 3 services within a single tenant, making the statement that it can contain only one VRF incorrect.
A VRF defines a Layer 3 address domain and routing context, not a Layer 2 address domain, which is typically handled by bridge domains.
Concept tested: ACI Tenant and VRF Relationship
Source: https://www.cisco.com/c/en/us/td/docs/dcn/aci/apic/5x/config/cisco-aci-fundamentals/b_Cisco_ACI_Fundamentals/b_Cisco_ACI_Fundamentals_chapter_010.html
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