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

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.