You are the Network Administrator for a startup company that has been granted a new block of addresses starting with the address XXXXXXXXXX/22. a) Calculate the total number of addresses available in...

You are the Network Administrator for a startup company that has been granted a new block of addresses starting with the address 139.145.56.0/22.

a)    Calculate the total number of addresses available in this block including all the special addresses.  Show your calculation (1 mark)


b)    As Network Administrator, you need to distribute the available addresses on a departmental needs basis (meaning not allocating more than you have to), with 4 new subnets determined as follows:


Marketing needs 65 addresses
Accounting needs 100 addresses

Head Office needs 33 addresses and,

Customer Services needs 13 addresses.