A large service provider network has a single-level IS-IS network with 500 routers. This network has short-haul and long-haul links. Periodically long- haul links bounce for a short period of time, causing 10 to 20 flaps in a few minutes. The probable cause is local road construction Although fast convergence is important, a design engineer is concerned about taxing CPU cycles on the older router. Which solution protects the CPU of the older routers during the short periods of excessive flapping, yet has no impact on fast convergence for all interface failures?

A service provider wants to use a controller to automate the provisioning of service function chaining.
Which two overlay technologies can be used with EVPN MP-BGP to create the service chains in the data center? (Choose 2)

You are designing a Group Encrypted Transport virtual private network solution for an existing branch network. The existing network has the following characteristics:
50 remote sites (with an additional 30 remote sites expected over the next 3 years) Connectivity between all sites is via Multiprotocol Label Switching Layer 3 virtual private network service from a single provider Open Shortest Path First is the routing protocol used between provider edge and customer edge routers
The customer edge routers will become group members performing the encryption between sites Which additional routing protocol would you use for the overlay routing between the group members?

Refer to the exhibit.

In this design, which technology would provide for the best use of resources to provide end-to-end Layer 2 connectivity?

A large enterprise network has two data centers and a WAN edge in a hub-and-spoke network topology. The entire network is in a single OSPF area Spoke routers are connected to unreliable WAN links. Which two changes must be made to deploy LSA filtering on the spoke routers? (Choose two)