Depends on your subnet mask. If you are talking about a classful addressing scheme in a class B, then the network would be 172.32.0.0
Set up a series of scope ranges in DHCP, or if you have a class A or class B address use a range that would give you that many addresses total. Then make sure that all the clients use DHCP for their addressing.
if addressing an envelope it would be to the Reverend Canon or just Canon. His wife would be Mrs... The oral address would be Canon, and his wife Mrs.....
An example of a valid class C address would be 192.168.6.200
A professor is higher in rank than a doctor; it would be more appropriate to address them as professor if they hold the title.
If your address is not subnetted, then the default subnet mask would be used. For this class address, it would be 255.0.0.0
It depends on the individual you are addressing. If the individual has a doctorate, you would address them as doctor. IF not, you address them as you would anyone in a formal setting (if in a formal setting).
To address a professor you would say 'Professor Doe' (whatever his or hers last name is.
Only if you're addressing him. Like, "Professor Smith, I have a problem." Or... "My instructor, Professor Smith, helped me with a problem." Not if it was like, "My professor helped my with a problem."
Since 157.54.4.201 falls in the class B address range the default subnet mask would be: 255.255.0.0 128 - 191 is a class B address.
Because if you watched the movies then you would see that First Class was set before the X-trilogy, when Professor X, Magneto and Mystique were friends. At the end of First Class, Magneto splits from Professor X and Mystique joins him. Magneto and Professor X are enemies, so Mystique would be an enemy of Professor X since she is in alliance with Magneto.
For an institution or even an individual, the cost would be whatever the ISP charges to connect using that address.