A company has a network address of 150.145.20.64 with a subnet mask of 255.255.255.192. The company wants to break this address block into 4 subnets of equal size.

a. What Subnet Mask should they configure on internal devices to achieve this?

b. How many hosts per subnet do they obtain?

c. List out the 4 Subnet IDs, the first and last valid host address, and the broadcast address for each of these subnets. 

A company has a network address of 120.19.128.0 with a subnet mask of 255.255.128.0 The company wants to create subnetworks that would contain 30 hosts each. The company wants to make the most efficient use of addresses.

a. What Subnet Mask should they configure on these hosts?

b. How many subnets do they obtain?

c. List the first three subnet IDs, with the first and last valid host address and broadcast address.