Refer to the exhibit.

You are asked to design this OSPF network to converge within 60 ms for unicast packets after a topology change due to a single link failure. Which technology can be enabled while conforming to the design requirements?

A company is planning to connect its 30 sites with a VPLS WAN backbone. A router at each site should establish neighborships with all other routers using the OSPF routing protocol. Which three points must be considered regarding DR and BDR when different router platforms are used? (Choose three.)

A BGP route reflector in the network is taking longer than expected to converge during large network changes.
Troubleshooting shows that the router cannot handle all the TCP acknowledgement during route updates.
Which action can be performed to tune the device performance?

Refer to the exhibit.

A service provider using IS-IS has designed this network with all core links at the Layer 2 control plane. How will they adjust the design to reduce the flooding of update packets?

When creating a network design, which one of these options provides for basic Layer 2 client isolation to prevent broadcast traffic exposure?