300-320 Question #170: Real Exam Question with Answer & Explanation

The correct answer is C: VRF-Lite. VRF-Lite (Virtual Routing and Forwarding – Lite) creates multiple independent routing table instances on a single router or multilayer switch. Each VRF maintains its own separate Forwarding Information Base (FIB), routing table, and set of interfaces, providing Layer 3 logical is

Question

Which network virtualization technology provides logical isolation of network traffic at Layer 3?

Options

AVSS
BVLAN
CVRF-Lite
DMEC

Explanation

VRF-Lite (Virtual Routing and Forwarding – Lite) creates multiple independent routing table instances on a single router or multilayer switch. Each VRF maintains its own separate Forwarding Information Base (FIB), routing table, and set of interfaces, providing Layer 3 logical isolation so that traffic in one VRF cannot reach traffic in another VRF without explicit policy. VLANs provide Layer 2 logical isolation by segmenting broadcast domains, not Layer 3. VSS virtualizes the switch control plane to combine chassis but does not isolate routing tables per tenant. MEC (Multichassis EtherChannel) is a link-aggregation technology with no role in Layer 3 traffic isolation.

Community Discussion

No community discussion yet for this question.

Full 300-320 Practice