All computers on your network use the 10.10.0.0/16 address scheme. Tom, your manager, instructs you to place the 15 servers into a separate subnet that uses the 192.168.10 public addressing scheme. You must plan for a maximum of 25 servers in the future and need to configure a new subnet mask.
The subnet mask must allow a sufficient number of IP addresses for the existing servers and future growth. However, you want to conserve addresses as much as possible. Which subnet mask should you use?