Network Virtualization Flashcards
6 cards from real Cisco ENCOR practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Network Virtualization flashcards as text
What is the primary role of a VTEP in a VXLAN network?
Answer: Encapsulate and decapsulate VXLAN packets
A VXLAN Tunnel Endpoint (VTEP) performs the encapsulation of Layer 2 frames into VXLAN/UDP and the reverse decapsulation.
In NFV, which component provides the virtual infrastructure resources such as compute, storage, and networking?
Answer: NFVI
The NFV Infrastructure (NFVI) encompasses the hardware and virtualization layers that host the VNFs.
Which multicast address does VXLAN use for BUM traffic when flooding is enabled?
Answer: 239.x.x.x (configured multicast group)
VXLAN BUM (Broadcast, Unknown-unicast, Multicast) traffic uses a configured multicast group address in the 239.x.x.x range.
Which Cisco technology provides the underlay network automation and telemetry for SD-WAN fabrics?
Answer: DNA Center
Cisco DNA Center provides network automation, assurance, and analytics that complement SD-WAN underlay management.
In LISP, which device answers Map-Request queries by providing EID-to-RLOC mappings?
Answer: MS/MR
The Map Server (MS) and Map Resolver (MR) store and resolve EID-to-RLOC mappings in the LISP control plane.
What is the default administrative distance of OMP routes on a Cisco SD-WAN WAN Edge router?
Answer: 251
OMP routes have a default administrative distance of 251 on WAN Edge routers, making them lower priority than most IGP routes.
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