CompTIA Network+ (N10-008) — Question 100

A client moving into a new office wants the IP network set up to accommodate 412 network-connected devices that are all on the same subnet. The subnet needs to be as small as possible. Which of the following subnet masks should be used to achieve the required result?

Answer options

Correct answer: C

Explanation

The correct answer is C (255.255.254.0) because it allows for 510 usable IP addresses, which can accommodate the 412 devices. Option A provides too many addresses for this scenario, while B offers 1022 usable addresses—more than necessary, and D only supports 254 usable addresses, which is insufficient.