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300-420 Practice Test


Page 9 out of 41 Pages

How is internet access provided to a WAN edge router that is connected to a MPLS
transport link?


A.

OMP advertises a default route from a WAN Edge router that is connected to the MPLS
and internet transport networks


B.

Internet access must be provided at the WAN Edge router through either a 4G/5G link or
local Internet circuit


C.

An extranet must be provided in the MPLS transport network to allow private traffic to
reach the public internet


D.

TLOC extensions are used to route traffic to a WAN Edge router that is connected to the
Internet transport network





D.
  

TLOC extensions are used to route traffic to a WAN Edge router that is connected to the
Internet transport network



Which PIM mode uses a shared tree only?


A.

bidirectional


B.

sparse


C.

dense


D.

source-specific





A.
  

bidirectional



Explanation: In bidirectional mode, traffic is routed only along a bidirectional shared tree
that is rooted at the rendezvous point (RP) for the group
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipmulti_pim/configuration/xe-16/imc-pimxe-
16-book/imc-tech-oview.html#GUID-51D0D6DF-E7F1-4A0E-8E31-D7ED464DF2AC

Which control-plane technology allows the same subnet to exist across multiple network locations?


A.

LISP


B.

VXLAN


C.

FabricPath


D.

ISE mobility services





A.
  

LISP



Explanation: https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Campus/cisco-sdadesign-
guide.html

Which feature must be incorporated into the campus LAN design to enable Wake on LAN?


A.

dynamic ARP Inspection Snooping on layer 2 devices


B.

directed broadcasts on layer 3 devices


C.

proxy ARP on layer 3 devices


D.

DHCP Snooping on layer 2 devices





B.
  

directed broadcasts on layer 3 devices



An architect is designing a multicast solution for a network that contains over 100 routers.
The architect plans to create several multicast domains and balance the PIM-SM traffic
within the network. Which technology should the architect include in the design?


A.

DVMRP


B.

IGMP


C.

MOSPF


D.

MSDP





D.
  

MSDP




Page 9 out of 41 Pages
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