300-420 Practice Test

A large chain of stores currently uses MPLS-based T1 lines to connect their stores to their
data center. An architect must design a new solution to improve availability and reduce
costs while keeping these considerations in mind:
» The company uses multicast to deliver training to the stores.
» The company uses dynamic routing protocols and has implemented QoS.
» To simplify deployments, tunnels should be created dynamically on the hub when
additional stores open.
Which solution should be included in this design?

A.

VPLS

B.

GET VPN

C.

DMVPN

D.

IPsec

An engineer must design a multicast network for a financial application. Most of the
multicast sources also receive multicast traffic (many-to-many deployment model). To
better scale routing tables, the design must not use source trees. Which multicast protocol
satisfies these requirements?

A.

PIM-SSM

B.

PIM-SM

C.

MSDP

D.

BIDIR-PIM

Drag and drop the properties from the left onto the protocols they describe on the right.

An engineer is working with NETCONF and Cisco NX-OS based devices. The engineer
needs a YANG model that supports a specific feature relevant only to Cisco NX-OS. Which
model must the engineer choose?

A.

Native

B.

IEEE

C.

OpenConfig

D.

IETF

What is the purpose of an edge node in an SD-Access network fabric?

A.

Edge nodes identify and authenticate endpoints and register endpoint information with control plane nodes.

B.

Edge nodes track endpoint IDs to location mappings, along with IPv4, IPv6, or MAC
addresses.

C.

Edge nodes are the gateway between the fabric domain and network outside of the fabric.

D.

Edge nodes resolve lookup requests from edge and border nodes to locate destination endpoint IDs.