6.7 Explain the Process of Diagnosing / Determining the Source of an Unexpected Cloud Cost Increase CLOUD-SECURITY-ENGINEER Practice Questions (Page 1)

Questions 1–5

1. 1expert · hard

   A company's Google Cloud bill increased by 20% this month. The billing report shows a new line item for 'Cloud Interconnect' that was not present last month. You need to understand the charge. What should you do?

   • ACheck the VPC network to see if a new firewall rule was added that allows traffic to the interconnect.
   • BReview the billing report to see the 'Cloud Interconnect' usage type and the associated data transfer volume.
   • CContact Google Cloud support to ask why the Cloud Interconnect was created.
   • DVerify that the Cloud Interconnect connection is in the 'ACTIVE' state.
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2. 2expert · hard

   A company's Google Cloud bill increased by 18% this month. The billing report shows a significant increase in 'Internet egress' charges. You need to identify the source. What should you do?

   • AUse VPC flow logs to identify the VM instances with the highest outbound traffic volume.
   • BContact Google Cloud support to ask for a breakdown of the egress charges.
   • CReview the firewall rules to see if any new rules allow more outbound traffic.
   • DCheck the Cloud CDN configuration to see if caching was disabled.
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4. 3application · medium

   A startup noticed a sudden, unexplained spike in their AWS bill starting on the 15th of the month. The spike is not visible in the daily cost breakdown by service. You need to determine exactly when the spike started and which resource caused it. What should you do?

   • AUse AWS Cost Explorer's daily granularity, filter by the date range, and group by resource ID to find the exact day and resource.
   • BEnable AWS Cost Anomaly Detection and wait for it to identify the anomaly in the next billing cycle.
   • CCheck the AWS Budgets report to see if the account exceeded the monthly budget threshold.
   • DReview the AWS CloudTrail logs for any API calls that created or modified resources on the 15th.
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5. 4application · medium

   A company has multiple projects running in the same AWS account. The finance team noticed a cost increase but cannot tell which project is responsible because the resources are not tagged. You need to isolate the cost by project. What should you do?

   • AUse AWS CloudTrail to review the API calls made by each IAM user to estimate which project is using more resources.
   • BApply cost allocation tags to all existing resources and wait for the next billing cycle to see the breakdown.
   • CCreate separate AWS accounts for each project and migrate all resources immediately.
   • DReview the AWS Cost Explorer and group by 'Service' to see which service is the most expensive.
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6. 5application · medium

   A company's Azure bill increased significantly after a recent deployment. The cost analysis shows the increase is in the 'Virtual Machines' category, but the number of VMs has not changed. You need to find out why the VM cost increased. What should you examine?

   • AConfirm that the VMs are still using the same operating system image.
   • BReview the network security group rules to ensure no new inbound rules were added.
   • CVerify that the VMs are in the same availability set as before the deployment.
   • DCheck the VM size and disk configuration for each VM to see if any were resized or had premium disks attached.
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