Google Associate Cloud Engineer Question 63
Select 1Google Cloud PlatformYour company is running a batch processing application on Google Cloud Platform that is cost-sensitive but can tolerate interruptions. You have been tasked with optimizing the cost of these workloads while ensuring they run with adequate performance. Which combination of Google Cloud resources should you choose to achieve this goal?
- A
Use regular on-demand VM instances with custom machine types.
- B
Use Spot VM instances with predefined machine types.
- C
Use Spot VM instances with custom machine types.
- D
Use Preemptible VM instances with custom machine types.
- E
Use regular on-demand VM instances with predefined machine types.
Show answer and explanation
Correct answer: C
Explanation
Spot VM instances are designed for workloads that can tolerate interruptions, offering significant cost savings compared to regular on-demand instances. By using custom machine types, you can further optimize resource allocation and costs by tailoring the instance's CPU and memory to fit the specific requirements of your batch processing application. This combination provides the best balance of cost savings and adequate performance for your scenario.
- A. Incorrect.
Regular on-demand VM instances are more expensive compared to Spot VMs. Custom machine types can provide cost savings by fitting the VM resources exactly to the workload requirements, but using only on-demand instances does not optimize costs as effectively as using Spot VMs.
- B. Incorrect.
Spot VM instances are cost-effective but predefined machine types may not provide the best resource fit for your workload, potentially leading to over-provisioning and increased costs.
- C. Correct.
Spot VM instances are significantly cheaper and suitable for workloads that can tolerate interruptions. Custom machine types allow you to tailor the resources exactly to your application’s needs, further optimizing costs.
- D. Incorrect.
Preemptible VM instances have been replaced by Spot VMs in Google Cloud. While they were once a cost-effective option, they are no longer available, making this choice incorrect.
- E. Incorrect.
Regular on-demand VM instances with predefined machine types are the most straightforward and stable option, but they are not cost-optimized. Predefined types may lead to over-provisioning and higher costs.