Which three items will adequately fulfill the request?

The network manager has requested a 300-workstation expansion of the network.

The workstations are to be installed in a single broadcast domain, but each workstation must have its own collision domain. The expansion is to be as cost-effective as possible while still meeting the requirements.

Which three items will adequately fulfill the request? (Choose three).
A . one IP subnet with a mask of 255.255.254.0
B . two IP subnets with a mask of 255.255.255.0
C . seven 48-port hubs
D . seven 48-port switches
E . one router interface
F . seven router interfaces

Answer: ADE

Explanation:

of 255.255.254.0 can absorb 510 hosts being 23 bits mask and also 7*48 port switches can handle this much hosts and router interface is required to be minimum to avoid unnecessary wastage hence the answers.