5.2 Implementing FinOps Practices for Optimizing Resource Utilization and Costs PROFESSIONAL-CLOUD-DEVOPS-ENGINEER Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   What is the billing model for Cloud Run instances?

   • ABilled at a flat monthly rate per service, regardless of usage
   • BBilled for the time an instance is running, rounded up to the nearest 100 milliseconds
   • CBilled for the number of vCPUs allocated, even when the instance is idle
   • DBilled only for the number of requests, regardless of how long they take
   Reveal Solution Discussion Select an answer first
2. 2expert · hard

   A team runs a large-scale, stateless web application on GKE. The workload is variable, with predictable peaks during the day and low traffic at night. They are currently using a fixed node pool of standard VMs. They want to reduce costs while maintaining performance. What is the most effective strategy?

   • AEnable cluster autoscaling but keep the node pool on standard VMs.
   • BEnable cluster autoscaling and node auto-provisioning, and use Spot VMs for the node pool.
   • CPurchase a committed-use discount for the node pool to reduce the hourly cost.
   • DUse Spot VMs for the node pool but do not enable cluster autoscaling.
   Reveal Solution Discussion Select an answer first
4. 3foundation · easy

   For which type of workload is a committed-use discount most appropriate?

   • AA short-lived batch job that runs for a few minutes each day
   • BA development environment that is only used during business hours
   • CA workload that can be interrupted at any time
   • DA production database that runs continuously with a predictable resource footprint
   Reveal Solution Discussion Select an answer first
5. 4foundation · easy

   How do resource requests and limits affect cost optimization in GKE?

   • ASetting accurate resource requests ensures that the cluster is not over-provisioned, reducing the number of nodes needed
   • BResource requests should be set to the maximum possible value to ensure performance
   • CSetting high resource limits always reduces costs by preventing pods from using too much CPU
   • DResource requests and limits have no impact on cost; they only affect performance
   Reveal Solution Discussion Select an answer first
6. 5foundation · easy

   Which workload characteristic is most suitable for running on Spot VMs?

   • AA batch data-processing job that can be restarted from checkpoints if interrupted
   • BA real-time web application that requires a consistent response time under 100 ms
   • CA stateful database that must maintain a single writer node at all times
   • DA legacy application that cannot be modified and runs a long-running process
   Reveal Solution Discussion Select an answer first