Question 21
Company XYZ needs advice in redesigning their legacy Layer 2 infrastructure.
Which technology should be included in the design to minimize or avoid convergence delays due to STP or FHRP and provide a loop-free topology?
Question 22
Company XYZ is planning to deploy primary and secondary (disaster recovery) data center sites. Each of these sites will have redundant SAN fabrics and data protection is expected between the data center sites. The sites are 100 miles (160 km) apart and target RPO/RTO are 3 hrs and 24 hrs, respectively. Which two considerations must Company XYZ bear in mind when deploying replication in their scenario? (Choose two.)
Question 23
You are designing a network running both IPv4 and IPv6 to deploy QoS.
Which consideration is correct about the QoS for IPv4 and IPv6?
Question 24

Refer to the exhibit A company has a hybrid cloud architecture with two on-premises data centers that connect to a public cloud service provider by using direct connect and eBGP routing. Encryption is unsupported by the cloud service provider, so the company plans to use an IPsec overlay network over its direct connects. Two virtual network appliances will be installed in the cloud infrastructure to establish tunnels and perform routing The company chose OSPF as the overlay routing protocol because the operations team is familiar with the protocol and because OSPF is the IGP on the on-premises network. The cloud network must be as isolated as possible from the on-premises network. What must be used for the OSPF overlay connectivity ?
Question 25
A customer migrates from a traditional Layer 2 data center network into a new SDN-based spine-and-leaf VXLAN data center within the same location Its applications cannot be readdressed and the customer does not want to perform the migration in a single operation How should the legacy network and new network be connected?
