300-420 Practice Test

An organization plans to deploy multicast across two different autonomous systems. Their
solution must allow RPs to:
•discover active sources outside their domain
•use the underlying routing information for connectivity with other RPs
•announce sources joining the group
Which solution supports these requirements?

A.

MSDP

B.

SSM

C.

PIM-SM

D.

PIM-DM

What is the role of a control-plane node in a Cisco SD-Access architecture?

A.

fabric device that connects wired endpoints to the SD-Access fabric

B.

map system that manages endpoint to device relationships

C.

fabric device that connects APs and wireless endpoints to the SD-Access fabric

D.

map system that manages External Layer 3 networks

An engineer must design an addressing plan for a small business using a single /24
network. Each department must have its own subnet. Drag and drop the subnets
from the left onto the departments requirements that they fulfill on the right. Not all
options are used.

An engineer is designing a multicast network for a company specializing in VoD content.
Receivers are across the Internet, and for performance reasons, the multicast framework
close to the receivers within each AS. For high availability, if the sources in one AS are no
longer available, the receivers of that AS must be able to receive the VoD content from
sources in another AS. Which feature must the design include?

A.

Bidirectional PIM

B.

SSM

C.

Anycast RP

D.

MSDP

A company with multiple service providers wants to speed up BGP convergence time in the
event a failure occurs with their primary link. Which approach achieves this goal and does
not impact router CPU utilization?

A.

Utilize BFD and tune the multiplier to 50

B.

Lower the BGP hello interval

C.

Decrease the BGP keepalive timer

D.

Utilize BFD and keep the default BGP timers