Pass the Cisco CCNP Enterprise 350-401 Questions and answers with Dumpstech

Solution:

R22

int tun0

vrf forwarding FINANCE

ip add 10.10.10.2 255.255.255.0

tunn source e0/0

tunnel dest 209.165.200.230

no shut

ip route vrf FINANCE 10.10.111.0 255.255.255.0 tunn0

int et0/1

vrf forwarding FINANCE

ip address 10.22.22.1 255.255.255.252

wr

Verification:-

Solution:

R3

Int e0/1

Ip ospf priority 255

End

Copy run start

R2

Int e0/1

Ip ospf network point-to-point

End

Copy run start

R10

Int e0/0

Ip ospf network point-to-point

End

Copy run start

Solution:

Copy run start

Verification:

OR

Solution:

R30

Config t

router ospf 100

router-id 10.0.1.30

int ran lo0 , e0/0-1

ip ospf 100 a 0

exit

int et0/2

ip ospf 100 a 50

exit

router ospf 30

area 50 range 10.10.0.0 255.255.192.0

area 50 range 10.50.0.0 255.255.192.0

end

wr

Solution: -

Solution:

R3

Config#int et0/1

config-if#ip ospf priority 255

wr

R20

clear ip ospf process

yes

R10

int et0/0

ip ospf priority 0

wr

R2

clear ip ospf process

yes

Solution:

R1

config

flow exporter Export-NetFlowENCOR

transport udp 2055

ip sla schedule 100 life forever start-time now

wr

Sw1

monitor session 11 source interface e0/2

monitor session 11 destination interface et1/1

wr

OR

The correct answer is B. To route video traffic through a dedicated link.

Policy-Based Routing (PBR) allows the router to make forwarding decisions based on policies such as source, destination, application, or other match criteria, instead of relying only on the routing table. Cisco documentation explains that PBR gives more control over routing by reducing reliance on routes learned from routing protocols, and that it can route traffic according to a defined policy.

This means an engineer can identify video traffic and force it to use a specific dedicated path or link, even if that path is not the normal best path chosen by the routing table. Cisco also notes that set ip next-hop makes the system use policy routing first and then the routing table, which confirms that PBR can override normal routing behavior to send selected traffic to a chosen next hop.

Video traffic is often sensitive to delay, jitter, and packet loss. With PBR, the engineer can match that traffic and send it over a dedicated WAN link or preferred path that better supports real-time applications. This is a classic use case for PBR.

A. To route video traffic using the shortest path to the destination This is normally the job of the routing table and routing protocols, not PBR. PBR is used when the engineer wants to override normal path selection.

C. To use multicast for video traffic transmission Multicast is a separate forwarding technology and is not the purpose of PBR.

D. To perform traffic shaping to avoid video traffic delay Traffic shaping is a QoS function, not a routing decision function. PBR selects paths; it does not shape traffic.

ENCOR exam point:

Use PBR when traffic must follow a policy-defined path rather than the path chosen by standard routing protocol metrics.