Google Associate Cloud Engineer Question 265
Single answerGoogle Cloud PlatformYou are managing a VPC network in Google Cloud Platform and need to expand an existing subnet to accommodate more virtual machines. The current subnet has a CIDR range of 10.0.0.0/24. What steps should you take to expand the subnet's available IP addresses?
- A
Create a new subnet with a larger CIDR range and migrate resources to the new subnet.
- B
Edit the existing subnet to increase its CIDR range, for example, to 10.0.0.0/22.
- C
Delete the existing subnet and create a new one with a larger CIDR range.
- D
Add a secondary IP range to the existing subnet.
Show answer and explanation
Correct answer: A
Explanation
In Google Cloud Platform, you cannot directly expand the CIDR range of an existing subnet. To provide more IP addresses, you need to create a new subnet with a larger CIDR range and migrate resources, or consider adding secondary IP ranges if applicable to your architecture. These secondary ranges cannot be used to expand the primary range but can be useful for allocating additional IPs for specific purposes.
- A. Correct.
Creating a new subnet with a larger CIDR range and migrating resources is a valid approach, but it involves significant effort and potential downtime.
- B. Incorrect.
Google Cloud does not allow changing the CIDR range of an existing subnet. You must create a new subnet or use secondary IP ranges.
- C. Incorrect.
Deleting the existing subnet is not recommended as it will disrupt all resources using that subnet.
- D. Incorrect.
Adding a secondary IP range is possible, but it does not directly expand the primary IP range of the subnet.