Question

1) Using the technique of bitwise ANDing, find the IP address of the network # (this could be a network or subnet) on which the machine with an IP address and (sub)netmask of 125.138.192.127/255.192.0.0 resides.

2) Based on the information provided below, determine

a) the parent network’s IP address  ,

and

b) the number of bits that you would manage within that parent’s address space  .

Machine’s IP=88.98.108.126, Machine’s Netmask=/27, Parent’s Netmask=255.255.240.0 .

3) Based on the information provided below, determine

a) the parent network’s IP address  ,

and

b) the number of bits that you would manage within that parent’s address space  .

Machine’s IP=33.32.31.30, Machine’s Netmask=255.255.255.248, Parent’s Netmask=/20 .

4) Assume that we have a network with the following machines:

10.75.40.1
10.75.40.45
10.75.40.65
10.75.40.100
10.75.40.150
10.75.40.175
10.75.40.200

a) If these machines are connected via a hub and we transmit from one of these machines to the other, how many of these machines “see” the packets? (Give an exact number, and include the machine that initially sent the packet in your count, since it "sees" the packet too.)

b) What if these machines are connected via a switch?

Answer 1