A network engineer must segregate three interconnected campus networks using IS-IS routing. A two-layer hierarchy must be used to support large routing domains and to avoid more specific routes from each campus network being advertised to other campus network routers automatically. Which two actions does the engineer take to accomplish this segregation? (Choose two.) Designate two IS-IS routers as BDR routers at the edge of each campus, and configure one BDR for all Level 1 routers and one BDR for all Level 2 routers.

Drag and drop the descriptions from the left onto the Cisco SD-WAN component they describe on the right.

Drag and drop the descriptions from the left onto the corresponding VPN types on the rights.

Drag and drop the components in a Cisco SD-Access architecture from the left onto their descriptions on the right.

Refer to the exhibit.

Refer to the exhibit. Which method must an architect use to provide connectivity between the mail servers?