Cisco ENCOR Network Virtualization 2

Question 1

What is the primary role of a VTEP in a VXLAN network?

Accepted Answer

Encapsulate and decapsulate VXLAN packets

Answer

A VXLAN Tunnel Endpoint (VTEP) performs the encapsulation of Layer 2 frames into VXLAN/UDP and the reverse decapsulation.

Question 2

In NFV, which component provides the virtual infrastructure resources such as compute, storage, and networking?

Accepted Answer

NFVI

Answer

The NFV Infrastructure (NFVI) encompasses the hardware and virtualization layers that host the VNFs.

Question 3

Which multicast address does VXLAN use for BUM traffic when flooding is enabled?

Accepted Answer

239.x.x.x (configured multicast group)

Answer

VXLAN BUM (Broadcast, Unknown-unicast, Multicast) traffic uses a configured multicast group address in the 239.x.x.x range.

Question 4

Which Cisco technology provides the underlay network automation and telemetry for SD-WAN fabrics?

Accepted Answer

DNA Center

Answer

Cisco DNA Center provides network automation, assurance, and analytics that complement SD-WAN underlay management.

Question 5

In LISP, which device answers Map-Request queries by providing EID-to-RLOC mappings?

Accepted Answer

MS/MR

Answer

The Map Server (MS) and Map Resolver (MR) store and resolve EID-to-RLOC mappings in the LISP control plane.

Cisco ENCOR Practice Test