Cisco 200-125 Exam
How many subnets can be gained by subnetting 172.17.32.0/23 into a /27 mask, and how many usable host addresses will there be per subnet?
- A. 8 subnets, 31 hosts
- B. 8 subnets, 32 hosts
- C. 16 subnets, 30 hosts
- D. 16 subnets, 32 hosts
- E. A Class B address cant be subnetted into the fourth octet.
Answer: Option C.
Explanation:
Subnetting from /23 to /27 gives us 27 23 = 4 bits -> 24 = 16 subnets.
/27 has 5 bit 0s so it gives 25 2 = 30 hosts-per-subnet.