Question about networks

Question

1.    What      is          the       number            of          hosts  in          a  /14      network?

                   

                        

2.    What      is          the       CIDR   for        a            network           with  a            netmask          of          255.255.128.0?                           

3.    What      is          the       broadcast        address            

            

            

            

4.    What      is          the       network           id?        

            

            

            

            

5.    How       many  subnets            are       possible           in          a  network           with    a            /19      CIDR? 

            

            

6.    What      is          the       number            of          hosts  in          a  network           that     has       a            netmask          of  255.255.192.0              

            

            

7.    Why        do         we        use       CIDR   today  –            in          other  words, what   is          the       practical          application     of  this      knowledge?   

Answer 1

A1 - 4194302

A2 - 10.0.0.1/17

A3 - 10.0.127.255

A4- 10.0.0.0

A5- 2048

A6 - 16382

A7- CIDR is now the routing system used by virtually all gateway routers on the Internet's backbone network.