Free Practice Questions for WGU Cloud-Deployment-and-Operations Exam

To route requests to a healthy endpoint without requesting additional Elastic IP addresses, the company should register a DNS name to an auto-assigned public IP address using a service like Route 53. This leverages dynamic DNS to distribute traffic, reducing reliance on fixed EIPs. The WGU Cloud Deployment and Operations Study Guide (Section 3.1, Route 53) states, "Registering a DNS name with an auto-assigned public IP in Route 53 allows traffic routing to healthy instances, avoiding the need for additional Elastic IP addresses." TTL adjustment, route table edits, and Systems Manager are not relevant solutions.

In AWS Systems Manager, the error threshold for automation documents is configured using rate control. Rate control allows administrators to define the maximum number of errors or concurrent executions that can occur before an automation task is throttled or stopped, ensuring system stability. The WGU Cloud Deployment and Operations Study Guide (Section 5.1, Systems Manager Automation) explicitly states, "Rate control settings in Automation documents can be used to specify the maximum number of errors allowed during execution, helping to manage error thresholds effectively." Resource groups, session preferences, and maintenance windows do not directly address error thresholds.

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To deploy a static website to AWS, the bucket properties of an Amazon S3 bucket should be configured, specifically enabling static website hosting. This involves setting the bucket policy to allow public read access and configuring the index and error documents. The WGU Cloud Deployment and Operations Study Guide (Section 2.1, S3 Static Website Hosting) states, "Configuring bucket properties for static website hosting in S3 involves enabling the website endpoint, setting an index document (e.g., index.html), and applying a bucket policy for public access, making it suitable for hosting static content." RDS Proxy, S3 Versioning, and CloudTrail events are not relevant to this use case.

A Private Hosted Zone in Amazon Route 53 should be used to restrict DNS resolution to instances within a Virtual Private Cloud (VPC), ensuring that the zone is only accessible internally. This isolates DNS services from public internet access. The WGU Cloud Deployment and Operations Study Guide (Section 3.1, Route 53 Hosted Zones) states, "A Private Hosted Zone in Route 53 limits DNS resolution to resources within a specified VPC, preventing external access and enhancing security for internal services." Public Hosted Zones, DNS Zones, and Lightsail DNS Zones do not provide this VPC-specific restriction.

AWS Fargate should be used to optimize the cost of a containerized application by eliminating the need for manual instance management, as it provides serverless container orchestration that automatically scales and charges only for resource usage. The WGU Cloud Deployment and Operations Study Guide (Section 7.5, Fargate) states, "Fargate optimizes costs for containerized applications by removing the overhead of managing EC2 instances, scaling automatically, and billing based on vCPU and memory usage, reducing manual deployment expenses." Aurora, RDS, and EFS are database or storage solutions not designed for container cost optimization.

Systems Manager Automation documents can be created using JSON or YAML file formats to define workflows and actions based on AWS Config rules. These formats allow administrators to specify the steps and parameters for automation tasks, such as remediation actions triggered by Config rule evaluations. The WGU Cloud Deployment and Operations Study Guide (Section 5.1, Systems Manager Automation) states that both JSON and YAML are supported formats for writing Automation documents, providing flexibility in scripting automation logic. XML and CSV are not supported formats for this purpose.

AWS Systems Manager should be used to schedule the patching of EC2 instances and on-premises servers with security updates, utilizing features like Patch Manager and maintenance windows. This service supports hybrid environments and automated patch deployment. The WGU Cloud Deployment and Operations Study Guide (Section 5.2, Systems Manager Patch Manager) states, "Systems Manager provides Patch Manager to schedule and deploy security updates to EC2 instances and on-premises servers during maintenance windows, ensuring consistent patching across hybrid environments." EventBridge, Config, and App Runner do not offer this patching capability.

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Recovery Point Objective (RPO) measures the maximum acceptable data loss, while Recovery Time Objective (RTO) measures the maximum acceptable downtime. The company requires an RPO of up to 3 hours (acceptable data loss) and an RTO of 1 hour (service restoration time). The correct option is RPO 4 hours, RTO 1 hour, as it meets the RPO requirement (allowing up to 3 hours of data loss is within 4 hours) and satisfies the RTO of 1 hour. The WGU Cloud Deployment and Operations Study Guide (Section 8.1, Disaster Recovery) states, "RPO defines the maximum data loss tolerance (e.g., 3 hours), and RTO defines the maximum downtime (e.g., 1 hour); a configuration of RPO 4 hours and RTO 1 hour aligns with these thresholds." Other options fail to meet both criteria simultaneously.

Amazon RDS Performance Insights supports retention periods of 7 days and 1 year for storing performance data, depending on the configuration and edition. The default retention is 7 days for standard monitoring, while enabling enhanced monitoring or the Performance Insights extended retention feature allows data to be retained for up to 1 year. The WGU Cloud Deployment and Operations Study Guide (Section 7.2, Performance Insights) states, "Performance Insights offers a 7-day retention period by default, with an option to extend to 1 year for detailed historical analysis, supporting cost and performance optimization." Options A (1 day) and D (2 years) are not supported retention periods.