Google Professional Cloud DevOps Engineer Question 176
Select 3Google Cloud PlatformYour organization is running a production application on Google Cloud using Compute Engine instances. The application has a stable workload, and the usage of the instances is predictable over the next year. The team has noticed that the current infrastructure costs are higher than expected and would like to optimize costs. Which of the following actions should you take to reduce infrastructure costs while ensuring performance and reliability?
- A
Purchase committed-use discounts for the Compute Engine instances.
- B
Switch the Compute Engine instances to the preemptible VM pricing model.
- C
Utilize sustained-use discounts for the existing Compute Engine instances.
- D
Enable the Standard network tier for outgoing traffic instead of the Premium tier.
- E
Migrate the application to a higher-performing machine type to reduce latency.
Show answer and explanation
Correct answers: A, C, D
Explanation
To reduce costs for a predictable, stable workload, you should leverage committed-use discounts for long-term savings, utilize sustained-use discounts for consistent instance usage, and consider switching to the Standard network tier if low-latency global traffic is not required. These actions help optimize costs while maintaining performance and reliability for production applications.
- A. Correct.
Purchasing committed-use discounts is an effective way to reduce costs for predictable, long-term workloads. This option is suitable when you know the workload is stable and will be used consistently for a year or more.
- B. Incorrect.
Preemptible VMs are cost-effective but are not suitable for production workloads due to their unreliability and 24-hour maximum lifespan. This option does not ensure reliability for production applications.
- C. Correct.
Sustained-use discounts are automatically applied by Google Cloud when instances are used consistently over a billing month. This is a cost-saving opportunity without requiring manual intervention.
- D. Correct.
The Standard network tier is less expensive than the Premium tier. If your application does not require low-latency global access, enabling the Standard network tier can reduce costs without affecting reliability significantly.
- E. Incorrect.
Migrating to a higher-performing machine type may improve latency, but it can increase costs instead of reducing them. This does not help optimize infrastructure costs.