Cloud-Deployment-and-Operations Exam Dumps : WGUCloud Deployment and Operations

The Wait event view in Amazon RDS Performance Insights provides information on hardware resources (e.g., CPU, I/O, memory) that may be causing bottlenecks by showing wait times for database operations. The WGU Cloud Deployment and Operations Study Guide (Section 7.2, Performance Insights) states, "The Wait event view in Performance Insights identifies resource bottlenecks (e.g., I/O wait times) by analyzing wait states, helping optimize database performance on hardware resources." Users, Hosts, and Statement views focus on different aspects and do not directly address hardware bottlenecks.

Multipart uploads must be used when uploading files larger than 5 GB to Amazon S3, as this method splits the file into smaller parts for parallel upload, improving reliability and performance. The WGU Cloud Deployment and Operations Study Guide (Section 2.1, S3 Uploads) states, "For files exceeding 5 GB, multipart upload is required in S3, allowing the file to be divided into parts (minimum 5 MB each) for concurrent uploads, ensuring efficient and resumable transfers." Glacier Select, Transfer Acceleration, and Intelligent-Tiering are not designed for this upload optimization.

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CloudWatch should be used to identify and shut down idle EC2 instances by monitoring metrics such as CPU utilization or network activity. Custom alarms can be set to trigger an AWS Lambda function or Systems Manager automation to terminate idle instances, optimizing costs. The WGU Cloud Deployment and Operations Study Guide (Section 4.1, CloudWatch Metrics) states, "CloudWatch can monitor EC2 instance metrics like CPUUtilization; an alarm can be configured to invoke a Lambda function to terminate idle instances, ensuring cost efficiency." CloudFront, CloudSearch, and CloudTrail are not designed for this monitoring and automation task.