CompTIA Network+ (N10-009) — Question 291

A network administrator is configuring a network for a new site that will have 150 users. Within the next year, the site is expected to grow by ten uses. Each user will have two IP addresses, one computer, and one phone connected to the network. Which of the following classful IPv4 address ranges will be best-suited for the network?

Answer options

• A. Class D
• B. Class B
• C. Class A
• D. Class C

Correct answer: B

Explanation

The correct answer is Class B, as it provides a sufficient number of IP addresses for the anticipated growth of 320 addresses (150 users x 2 IPs + 10 additional users x 2 IPs). Class A and Class C do not offer the right balance of addresses needed for this configuration, while Class D is used for multicast purposes and is not suitable for this scenario.