18. Which hierarchical design characteristic would be recommended at both the core

and distribution layers to protect the network in the case of a route failure?

PoE

*redundancy

aggregation

access lists

19. Which feature supports higher throughput in switched networks by combining

multiple switch ports?

convergence

redundant links

*link aggregation

network diameter

20. Refer to the exhibit. Beginning with HR servers and workstations, a network

engineer is designing a new security structure for the network. Which set of policies

adheres to the hierarchical network model design principles?

Implement Layer 3 switching on S1 to reduce the packet processing load on D1 and

D2. Install all security processing on S1 to reduce network traffic load.

*Configure port security options on S1. Use Layer 3 access control features on D1

and D2 to limit access to the HR servers to just the HR subnet.

Move all HR assets out of the data center and connect them to S1. Use Layer 3

security functions on S1 to deny all traffic into and out of S1.

Perform all port access and Layer 3 security functions on C1.