Using Address Mask method 3. A classless address is given as 167.199.170.82/27. Find the following mentioned in On 1 . Using Address Mask method 4. The beginning address is 172.24.74.0/24. Divide into 3 subnetworks. Find all the subnet information. How many addresses are left unused in total? - One subblock of 80 addresses. - One subblock of 20 addresses. - One subblock of 5 addresses. 5. An organization is granted a block of addresses with the beginning address 14.24.74.0/23 The organization needs to have 4 sub-blocks of addresses to use in its four subnets as shown below: How many addresses are left unused in block 3 ? - One subblock of 250 addresses. - One subblock of 120 addresses. - One subblock of 80 addresses One subblock of 10 addresses