300-420 Exam Question 41
Refer to the exhibit. An architect must design an IPv6 migration solution for an enterprise customer to support these requirements:
- Clients will transition to the new IPv6 network, which provides NAT64 and IPv6 DNS resolution services, using the same DNS name that points to the IPv4 address.
- The service provider will create a client-facing IPv6 interface with
a new IPv6 virtual address that points to the same IPv4 DNS server.
- The service provider will support clients that use global IPv6
addresses and encapsulate IPv4 packets into IPv6 tunnels.
Which two migration solutions must the architect choose? (Choose two.)

- Clients will transition to the new IPv6 network, which provides NAT64 and IPv6 DNS resolution services, using the same DNS name that points to the IPv4 address.
- The service provider will create a client-facing IPv6 interface with
a new IPv6 virtual address that points to the same IPv4 DNS server.
- The service provider will support clients that use global IPv6
addresses and encapsulate IPv4 packets into IPv6 tunnels.
Which two migration solutions must the architect choose? (Choose two.)

300-420 Exam Question 42
Which design achieves SD-WAN control plane redundancy?
300-420 Exam Question 43
Refer to the exhibit. An engineer is designing a routing solution for a customer. The design must ensure that a failure of network 10.1.0.0/24, 10.1.2.0/24, 10.2.1.0/24, or 10.2.3.0/24 does not impact the core. It also requires fast convergence time during any link failover in the core or access networks.
Which solution must the engineer select?

Which solution must the engineer select?

300-420 Exam Question 44
An engineer is tasked with designing a dual BGP peering solution with a service provider. The design must meet these conditions:
- The routers will not learn any prefix with a subnet mask greater than
/24.
- The routers will determine the routes to include in the routing table based on the length of the mask alone.
- The routers will make this selection regardless of the service
provider configuration.
Which solution should the engineer include in the design?
- The routers will not learn any prefix with a subnet mask greater than
/24.
- The routers will determine the routes to include in the routing table based on the length of the mask alone.
- The routers will make this selection regardless of the service
provider configuration.
Which solution should the engineer include in the design?
300-420 Exam Question 45
Refer to the exhibit. EIGRP has been configured on all links. The spoke nodes have been configured as EIGRP stubs, and the WAN links to R3 have higher bandwidth and lower delay than the links to R4.
When a link failure occurs at the R1-R2 link, what happens to traffic on R1 that is destined for a subnet attached to R2?

When a link failure occurs at the R1-R2 link, what happens to traffic on R1 that is destined for a subnet attached to R2?

