Exam Network-Security-Essentials Topic 1 Question 23 Discussion

Actual exam question for WatchGuard's Network-Security-Essentials exam
Question #: 23
Topic #: 1
Your users have no network connectivity on their computers in the 10.0.40.0/24 network. You investigate and discover the DHCP address pool for this network is exhausted, but there are no available IP addresses in the network to assign. Which of these options can you use to expand the IP address space of this network? (Select two.)

Suggested Answer: C,E Vote an answer

* Adding a Secondary Network (10.0.50.1/24): By adding a secondary subnet (such as10.0.50.1/24) to the existing 10.0.40.1/24 network, you expand the IP address space, effectively increasing the number of available IP addresses for DHCP allocation.
* Bridging Across Additional Interfaces: Bridging the 10.0.40.1/24 network across multiple interfaces can also increase the available address pool by creating a larger logical network. This approach helps manage IP space across a broader range of devices without subnet fragmentation.
These methods provide scalable solutions to expand IP address availability within constrained network spaces.

by Stan at Apr 09, 2025, 07:08 AM

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0scar
2026-09-04 06:16:44
Selected Answer: AC
Change the IP address of the 10.0.40.1/24 network to 10.0.40.123/24 - Spelt incorrectly, is meant to be 10.0.40.1/23. Decreasing the value of the subnet, will provide more usable hosts.
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0scar
2026-09-04 06:10:29
Answer is meant to be "Change the IP Address of the 10.0.40.1/24 to 10.0.40.1/23", issue on this test is that its written "10.0.40.123/24" which is just wrong. Reason this is the right answer is because it extends the subnet to use 10.0.41.x as a usable range.

The second correct answer is adding 10.0.50.1/24 as a secondary network as this allows this network to be used for DHCP pools.

Bridging the interfaces just allows that network to be accessible on another interface, but does nothing for the addressing issue.
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christopher
2026-05-12 09:00:17
Adding a secondary IP to the 10.0.40.1/24 Interace alone would not expand the IP address space, nor would making more physical interfaces available with the bridge option.

None of these answers is correct.
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