Practice Test 1 | Google Cloud Certified Associate Cloud Engineer | Dumps | Mock Test
As per your manager’s instruction, you created a custom VPC with a subnet mask of 24 which provides 256 IP addresses but are only able to use 252 addresses out of it. You manager is trying to figure out what’s going wrong and approaches you for the answer. What will you answer to your manager?
A. Inform manager that you will recreate the VPC because you feel something went wrong while creating a subnet.
B. GCP reserves four IP addresses in each primary subnet range, because of which the usable IP count is 252.
C. It’s because your account has reached a soft limit for the number of private IP address space. Raise a request for a quota increase.
D. None of the above.
Explanation:
Correct Answer – B
Option B is correct. Google Cloud always reserves 4 IP addresses for every subnet you create. Reason for this is:
- First IP is a network address.
- Second is reserved for the default gateway.
- Second-to-last is reserved for future use.
- Last address is the broadcast address.
Option A is incorrect: Subnet creation process has nothing to do with a smaller number of the available IP address.
Option C is incorrect: Soft limit has nothing to do in this case.
Option D is incorrect: The correct answer is B, hence this is invalid.
Reference:
https://cloud.google.com/vpc/docs/vpc
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