Practice Test 4 | Google Cloud Certified Professional Cloud Network Engineer | Dumps | Mock Test
You have been asked to design a custom network in GCP with three subnets each having at least 300 usable IP addresses. You need to choose the CIDR block that can achieve this, without wasting lots of addresses.
Which of the following CIDR blocks would you recommend for each subnet?
A. /21.
B. /22.
C. /23.
D. /24.
Answer: C
Options A and B are incorrect because they give 2048 and 1024 addresses respectively which leaves a lot of addresses unused.
Option C is correct, this provides 512 addresses which is more than enough with the least amount of unused addresses.
Option D is incorrect, this gives 256 addresses which is not enough.
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