Google Cloud Certified Professional Cloud Network Engineer Practice Mode

Community Discussion

Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.

• Chose B1

  B is correct. Option A is incorrect because the Distribution VPC must be created in custom mode, and not in auto mode, in order to specify its IP address range. Option C is incorrect because the CIDR range 10.128.0.0/9 overlaps with the IP address range of the Retail VPC, which starts from 10.128.0.0/20. Option D is incorrect because renaming the default VPC does not create a new VPC with a unique IP address range.

• Chose B2

  The correct configuration for the Distribution VPC is option B. Explanation: Option B is the appropriate choice because it suggests creating the Distribution VPC in custom mode, allowing you to specify the CIDR range (10.0.0.0/9) for the VPC. Auto mode does not allow you to specify the IP range, and it's recommended to use custom mode when you want more control over the IP addressing. Network peering requires both VPCs to be in custom mode. Option C also suggests creating the Distribution VPC in custom mode with a specified CIDR range, but the provided range (10.128.0.0/9) might overlap with the auto mode range used by the Retail VPC, so it could lead to conflicts. Options A and D do not follow best practices, as renaming the default VPC is not recommended (Option D) and using auto mode for the Distribution VPC (Option A) would limit your ability to choose a specific CIDR range.

• Chose B1

  Auto mode VPC networks are created with one subnet per region at creation time and automatically receive new subnets in new regions. The subnets have IPv4 ranges only, and all subnet ranges fit inside the 10.128.0.0/9 CIDR block. Unused portions of 10.128.0.0/9 are reserved for future Google Cloud use. For information about what IPv4 range is used in which region, see Auto mode IPv4 subnet ranges.