Which three are reasons for this proposal?

A network engineer proposes that old hubs be replaced by new Layer 2 switches in the company network. Which three are reasons for this proposal? (Choose three.)
A. Each port on a switch becomes its own collision domain.
B. Layer 2 switches provide IP routing at line card speed.
C. Hubs create one large collision domain and one large broadcast domain, which greatly decreasing network performance.
D. Switches create one large collision domain and one large broadcast domain, which greatly increases network performance.
E. By connecting each device directly to a port on the hub, each port on a switch becomes its own broadcast domain.
F. Data transmission is faster on switches because switches work at line card speed.

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