5.2 Implementing FinOps Practices for Optimizing Resource Utilization and Costs PROFESSIONAL-CLOUD-DEVOPS-ENGINEER Practice Questions (Page 5)

Questions 21–25

1. 21application · medium

   A DevOps team manages a fleet of Compute Engine VMs for a legacy application. They have noticed that many VMs have CPU utilization below 10% for the entire month, while others are consistently at 90% and experiencing performance issues. The team wants to optimize costs and performance. What should they do?

   • AUse the rightsizing recommender to identify the underutilized VMs and downsize them, and then manually upgrade the VMs that are at 90% utilization.
   • BIncrease the machine type of all VMs to the largest available size to ensure they can handle peak load.
   • CApply committed-use discounts to all VMs to reduce the hourly cost, regardless of utilization.
   • DMigrate all VMs to Spot VMs to take advantage of the lower price, since the application is not critical.
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2. 22expert · hard

   A DevOps team manages a large GKE cluster with hundreds of services. They are using Cloud Monitoring and Cloud Logging extensively. Their observability costs are high, and they have been asked to reduce them. They have identified that a significant portion of the cost comes from ingesting and storing verbose application logs. The team still needs to be able to search logs for troubleshooting and alert on specific error patterns. What is the most effective strategy?

   • AExport all logs to BigQuery and use SQL queries for analysis, which is cheaper than Cloud Logging.
   • BUse log-based metrics to extract key error patterns and then set a filter to exclude verbose logs from ingestion, storing only the extracted metrics.
   • CDisable all logging and rely solely on Cloud Monitoring metrics for troubleshooting.
   • DIncrease the log retention period to 90 days so that logs are available for longer, reducing the need for multiple copies.
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4. 23expert · hard

   A DevOps team is responsible for a large GCP environment. They have received several recommendations from the Recommender service, including a rightsizing recommendation for a VM, a security recommendation to enable a firewall rule, and a reliability recommendation to create a backup for a database. The team has limited time and budget. What is the most appropriate way to prioritize these recommendations?

   • AAddress all recommendations at the same time, as they are all equally important.
   • BAddress the reliability recommendation first, as it is the most critical for the business.
   • CAddress the rightsizing recommendation first, as it will save money that can be used to address the other recommendations.
   • DAddress the security recommendation first, then the reliability recommendation, and finally the rightsizing recommendation.
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5. 24foundation · easy

   Which recommendation would be provided by a security recommender?

   • AA VM has a public IP address but no firewall rules restricting access, which is a security risk
   • BA GKE cluster could benefit from node auto-provisioning to reduce costs
   • CA Cloud Run service could handle more requests per instance by increasing concurrency
   • DA VM is underutilized and could be moved to a smaller machine type
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6. 25foundation · easy

   What is the primary difference between the Premium and Standard network tiers in Google Cloud?

   • APremium tier is free, while Standard tier has a per-GB charge
   • BPremium tier uses Google's global network for lower latency, while Standard tier uses the public internet and is cheaper
   • CStandard tier provides a higher throughput guarantee than Premium tier
   • DPremium tier is only available for VMs in the US, while Standard tier is available globally
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