Refer to the exhibit. Which two design options reduce the size of OSPF database? (Choose two)

You work for a large company that has just acquired another smaller company. You have been asked to lead a group of SAN experts from both companies to design the integration plan that will be used to interconnect the SANs and migrate the data from the newly acquired company to the main storage arrays.
The first thing that the team discovers is that the two SANs have the same domain IDs.
As the SAN team lead, what would you advise your team to do so that you can interconnect the two SANs while minimizing disruption?

You are designing the QoS features for a large enterprise network that includes DMVPN. When would you need to configure QoS preclassify?

Which two steps can be taken by the sinkhole technique? (Choose two.)

A large enterprise company is redesigning their WAN infrastructure and has these design requirements

Which two design solutions ensure that the enterprise access routers reach all devices in this enterprise network? (Choose two)