CV0-004 · Question #180
A cloud architect is reviewing the design for a new cloud-based ERP solution. The solution consists of eight servers with a single network interface. The allocated IP range is 172.16.0.0/28. One of…
The correct answer is C. Change the subnet mask to use a 255.255.255.128 range. The current allocation is 172.16.0.0/28, which provides only 16 IP addresses (14 usable after network and broadcast addresses). With 8 existing servers plus a potential 16 new servers, the environment needs at least 24 usable IP addresses. A /28 cannot accommodate this…
Question
A cloud architect is reviewing the design for a new cloud-based ERP solution. The solution consists of eight servers with a single network interface. The allocated IP range is 172.16.0.0/28. One of the requirements of the solution is that it must be able to handle the potential addition of 16 new servers to the environment. Because of the complexity of the firewall and related ACL requirements, these new servers will need to be in the same network range. Which of the following changes would allow for the potential server addition?
Options
- AChange the IP address range to use a 10.0.0.0 address.
- BChange the server template to add network interfaces.
- CChange the subnet mask to use a 255.255.255.128 range.
- DChange the server scaling configuration to increase the maximum limit.
How the community answered
(54 responses)- A4% (2)
- B9% (5)
- C74% (40)
- D13% (7)
Explanation
The current allocation is 172.16.0.0/28, which provides only 16 IP addresses (14 usable after network and broadcast addresses). With 8 existing servers plus a potential 16 new servers, the environment needs at least 24 usable IP addresses. A /28 cannot accommodate this. Changing to 255.255.255.128 equals a /25 subnet, which provides 128 IP addresses (126 usable)-enough for all 24 servers with significant room to grow. Crucially, the requirement states the new servers must remain in the same network range, so subnetting differently is not an option. Changing the base IP to 10.0.0.0 would change the network entirely. Adding network interfaces or adjusting scaling configuration does not resolve the IP address space shortage.
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