Explanation:
The correct answer is B because the CIDR block 10.0.0.0/8 offers the largest range of private IP addresses (16,777,212) among the standard private CIDR blocks (192.168.0.0/16, 172.16.0.0/12, 10.0.0.0/8) that can be assigned to a VPC and its subnets.
Option D (0.0.0.0/0) is incorrect as it is not within the allowed RFC 1918 CIDR ranges. Options A and C are also incorrect because they offer fewer private IPs compared to the 10.0.0.0/8 CIDR block. For more details, refer to the GCP documentation on VPC Subnet IP ranges.
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Your company is planning to establish a virtual private cloud (VPC) network and aims to configure a single subnet within this VPC to utilize the maximum range of available IP addresses. Which CIDR block would you recommend for this purpose?
A
172.16.0.0/12
B
10.0.0.0/8
C
192.168.0.0/16
D
0.0.0.0/0