350-501 Exam Dumps - Implementing and Operating Cisco Service Provider Network Core Technologies (350-501 SPCOR)

When implementing a prefix list, it is a best practice to use nonsequential sequence numbers. This allows for the insertion of additional entries at a later time without the need to renumber the entire list, providing flexibility in managing the prefix list.

RSVP-TE Fast Reroute (FRR) is a mechanism that provides protection switching for MPLS TE LSPs. The Point of Local Repair (PLR) will prefer to use a next-hop (NHOP) backup tunnel over a next-next-hop (NNHOP) backup tunnel when both are available. This preference is due to the fact that NHOP backup tunnels can provide faster rerouting around the failure point, minimizing traffic disruption and packet loss.

OSPF adjacency is established when two OSPF routers have matching interface parameters. This includes the OSPF router ID, network address, area ID, and other OSPF-specific configurations such as MTU size and network type. For example, the configuration commands provided in the image description suggest setting the OSPF router ID, network address with a wildcard mask, and specifying the OSPF area. Additionally, the interface is set to a point-to-point network type with a specific MTU size, which is important for OSPF adjacency as mismatched MTU sizes can prevent OSPF neighbors from forming an adjacency.

R1

router bgp 100

address-family ipv4

nei 172.16.0.2 route-map R1-TO-R2 in

network 10.1.1.1 mask 255.255.255.255

copy run start

R2

router bgp 200

address-family ipv4

network 10.2.2.2 mask 255.255.255.255

nei 172.16.0.1 route-map R2-TO-R1 in

copy run start

 To achieve this, we need to apply an access control list (ACL) on PE-R9 that permits SSH traffic from the management network 192.168.0.0/16 while denying other traffic. The correct ACL configuration is as follows:

access-list 100 permit tcp 192.168.0.0 0.0.255.255 any eq 22

access-list 100 deny ip any any

The first line permits TCP traffic from the management network to any destination with destination port 22 (SSH).

The second line denies all other IP traffic.