On this floor plan, the telecom room will be in room $820.$ On this floor, there will be $948-$port switches installed in the rooms where there's a number. There are $9$ rooms in this case.

a$)$ How many number of ports on each switch $($excluding uplink ports$)?$

b$)$ What interface specifications of ports to each workstation?

c$)$ How many number of uplink ports for each switch?

d$)$ What interface specifications of uplink ports?