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(A company stores critical data on general-purpose Amazon EBS volumes. The company can only tolerate the loss of up to one hour of data. Which solution should be used to protect data from loss?)
Answer : B
Comprehensive and Detailed Explanation From Exact Extract:
To protect critical data on EBS volumes with a maximum tolerable data loss of one hour, the company should schedule automated volume snapshots using CloudWatch Events. Snapshots capture the state of the volume at a point in time, and regular scheduling (e.g., every hour) ensures data loss is limited to the snapshot interval. The WGU Cloud Deployment and Operations Study Guide (Section 7.3, EBS and Snapshots) states, 'Automated EBS snapshots can be scheduled using CloudWatch Events rules to create backups at defined intervals, ensuring an RPO of one hour by capturing volume data regularly.' Local storage, Cloud Control backups, and Block Express are not viable solutions for this automated snapshot requirement.
(Which two locations can Amazon Inspector publish its findings in when it has detected an anomaly? Choose 2 answers.)
Answer : A, B
Amazon Inspector can publish its findings when detecting anomalies to Amazon SNS for real-time notifications and to CloudWatch for metric and event logging, enabling monitoring and response. The WGU Cloud Deployment and Operations Study Guide (Section 6.2, Amazon Inspector) states, 'Inspector findings are published to SNS for immediate alerts and to CloudWatch for detailed logging, allowing integration with other AWS services for anomaly response.' CloudTrail logs API calls, and SQS is a messaging queue, neither of which are primary destinations for Inspector findings.
(A company is using Route 53 for Domain Name System (DNS) hosting. The company requires a zone that should only be accessible from instances in a Virtual Private Cloud (VPC). Which type of hosted zone should be used?)
Answer : C
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.
(Which service should be used to horizontally scale Amazon EC2 instances?)
Answer : A
Elastic Load Balancing (ELB) should be used to horizontally scale Amazon EC2 instances by distributing incoming traffic across multiple instances, improving availability and fault tolerance. ELB works in conjunction with Auto Scaling groups to add or remove instances based on demand. The WGU Cloud Deployment and Operations Study Guide (Section 3.2, Elastic Load Balancing) notes, 'Elastic Load Balancing distributes traffic across EC2 instances, enabling horizontal scaling as part of an Auto Scaling group to handle increased load efficiently.' Elastic IPs, elastic network interfaces, and Elastic Beanstalk do not provide this scaling functionality.
(Which two languages are used by CloudFormation to define infrastructure? Choose 2 answers.)
Answer : A, B
Comprehensive and Detailed Explanation From Exact Extract:
AWS CloudFormation uses YAML and JSON languages to define infrastructure as code (IaC) templates, specifying resources, parameters, and configurations. These formats are human-readable and support the creation of stacks for provisioning AWS resources. The WGU Cloud Deployment and Operations Study Guide (Section 5.3, CloudFormation) states, 'CloudFormation templates can be written in YAML or JSON, both of which are supported for defining infrastructure resources like EC2 instances and S3 buckets.' XML and C# are not supported languages for CloudFormation templates.
