CompTIA Network+ (N10-007) — Question 76

A network technician is creating a new subnet for 488 host machines. The technician is told to use a class B address scheme when making the subnet and is instructed to leave as much room as possible for additional subnets of the same size. Which of the following subnets would fulfill these requirements?

Answer options

• A. 10.5.4.0/22
• B. 10.233.2.0/23
• C. 172.16.0.0/22
• D. 172.18.0.0/23
• E. 192.168.25.0/24

Correct answer: D

Explanation

The correct answer is D, 172.18.0.0/23, as it allows for 510 hosts, fitting the requirement of 488 hosts with room for additional subnets. Options A and C allow for larger subnets but do not maximize future subnetting potential as efficiently as D. Options B and E do not meet the host requirement, making them unsuitable choices.