CompTIA Security+ (SY0-501) — Question 56

A security administrator is creating a subnet on one of the corporate firewall interfaces to use as a DMZ which is expected to accommodate at most 14 physical hosts.
Which of the following subnets would BEST meet the requirements?

Answer options

• A. 192.168.0.16 255.25.255.248
• B. 192.168.0.16/28
• C. 192.168.1.50 255.255.25.240
• D. 192.168.2.32/27

Correct answer: B

Explanation

The subnet 192.168.0.16/28 provides 16 total IP addresses, of which 14 can be assigned to hosts, making it adequate for the requirement of supporting 14 hosts. The other options either provide insufficient addresses or have incorrect subnet masks that do not align with the needed capacity.