What are two descriptions of three-tier network topologies?

What are two descriptions of three-tier network topologies? (Choose two.)
A. The distribution layer runs Layer 2 and Layer 3 technologies
B. The network core is designed to maintain continuous connectivity when devices fail
C. The access layer manages routing between devices in different domains
D. The core layer maintains wired connections for each host
E. The core and distribution layers perform the same functions

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