Designing Cisco Enterprise Networks (ENSLD) — Question 274

An architect is designing an IPv4 plan for a branch office using 10.224.4.0/23. The design must maximize the number of subnets and allow for the doubling of hosts. The solution has these requirements:
• 40 hosts for the data subnet
• 24 hosts for the camera subnet
• 15 hosts for the voice subnet

Which plan meets these requirements?

Answer options

• A. Data subnet - 10.224.4.0/26 - Camera subnet - 10.224.4.64/27 - Voice subnet - 10.224.4.96/28
• B. Data subnet -10.224.5.0/25 - Camera subnet - 10.224.5.128/26 - Voice subnet - 10.224.5.192/27
• C. Data subnet - 10.224.5.0/26 - Camera subnet - 10.224.5.64/27 - Voice subnet - 10.224.5.96/28
• D. Data subnet -10.224.4.0/25 - Camera subnet - 10.224.4.128/26 - Voice subnet - 10.224.4.160/27

Correct answer: D

Explanation

The correct answer is D because it allocates sufficient address space for 40 hosts in the data subnet, 24 hosts in the camera subnet, and 15 hosts in the voice subnet, while also allowing for future expansion. Options A, B, and C do not provide enough addresses for the required number of hosts in at least one of the subnets, making them invalid choices.