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| Certification Vendor: | Amazon Web Services (AWS) |
|---|---|
| Exam Name: | AWS Certified CloudOps Engineer - Associate |
| Exam Number: | SOA-C03 |
| Passing Score: | 720 (scaled score 100โ1000) |
| Exam Duration: | 130 minutes |
| Exam Format: | Multiple response, Multiple choice |
| Available Languages: | English, Korean, Japanese, Simplified Chinese |
| Exam Price: | 150 USD |
| Related Certifications: | AWS Certified SysOps Administrator - Associate (SOA-C02, retired) |
| Certificate Validity Period: | 3 years |
| Real Exam Qty: | 65 (50 scored, 15 unscored) |
| Recommended Training: | AWS Training and Certification AWS Official Exam Guide |
| Exam Registration: | AWS Certification Registration Pearson VUE Scheduling |
| Sample Questions: | Amazon SOA-C03 Sample Questions |
| Exam Way: | Online proctored or onsite at Pearson VUE test centers |
| Pre Condition: | No mandatory prerequisites; recommended 1 year of experience deploying, managing, and operating workloads on AWS |
| Official Syllabus URL: | https://docs.aws.amazon.com/aws-certification/latest/sysops-administrator-associate-03/sysops-administrator-associate-03.html |
>> Verified SOA-C03 Answers <<
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NEW QUESTION # 96
A company hosts a static website in an Amazon S3 bucket, accessed globally via Amazon CloudFront.
The Cache-Control max-age header is set to 1 hour, and Maximum TTL is set to 5 minutes. The CloudOps engineer observes that CloudFront is not caching objects for the expected duration.
What is the reason for this issue?
Answer: D
Explanation:
As per the AWS Cloud Operations and Content Delivery documentation, CloudFront determines cache behavior by evaluating both origin headers (e.g., Cache-Control and Expires) and distribution- level TTL settings.
When Cache-Control max-age conflicts with the Maximum TTL configured in CloudFront, the shorter TTL value takes precedence. This results in CloudFront caching content for only 5 minutes instead of 1 hour, despite the origin headers suggesting a longer duration.
AWS documentation explicitly states: "When both origin cache headers and CloudFront TTL settings are defined, CloudFront uses the most restrictive caching period." This mismatch causes the perceived performance drop, as CloudFront frequently revalidates content.
Therefore, Option D is correct -- cache-duration settings conflict with each other, leading to unexpected caching behavior.
NEW QUESTION # 97
A company is managing multiple AWS accounts in AWS Organizations. The company is reviewing internal security of its AWS environment. The company's security administrator has their own AWS account and wants to review the VPC configuration of developer AWS accounts.
Which solution will meet these requirements in the MOST secure manner?
Answer: D
Explanation:
The most secure solution is to use cross-account IAM roles with least-privilege read-only permissions. The security administrator should not receive shared IAM user credentials from the developer accounts. Credential sharing is poor security practice and creates accountability and rotation problems. Administrator access is also excessive because the requirement is only to review VPC configuration, not modify resources. A cross- account role lets the security administrator authenticate in their own AWS account and assume a role in each developer account for temporary, auditable access. The role should allow only the required read-only EC2 and VPC actions, such as describing VPCs, subnets, route tables, network ACLs, security groups, and flow logs.
This approach follows AWS least-privilege and temporary-credential best practices.
NEW QUESTION # 98
A company uses AWS Organizations to manage a set of AWS accounts. The company has set up organizational units (OUs) in the organization. An application OU supports various applications.
A CloudOps engineer must prevent users from launching Amazon EC2 instances that do not have a CostCenter-Project tag into any account in the application OU. The restriction must apply only to accounts in the application OU.
Which solution will meet these requirements?
Answer: A
Explanation:
AWS Organizations service control policies (SCPs) are designed to enforce permission guardrails across accounts. SCPs define the maximum available permissions for IAM principals in member accounts, regardless of the permissions granted by IAM policies. Because the requirement is to prevent EC2 instance launches without a required tag and to apply the restriction only to accounts within a specific organizational unit, SCPs are the correct control mechanism.
By creating an SCP that denies the ec2:RunInstances action when the CostCenter-Project tag is missing, the CloudOps engineer ensures that no EC2 instance can be launched without the required tag. Attaching the SCP directly to the application OU limits the scope of enforcement to only the accounts that belong to that OU, which satisfies the requirement precisely.
IAM-based solutions such as user groups or roles cannot enforce controls across multiple accounts consistently and can be bypassed by users with sufficient permissions. Attaching the SCP to the root OU would incorrectly apply the restriction to all accounts in the organization, which violates the requirement.
Therefore, attaching a tag-enforcing SCP to the application OU is the correct and least operationally complex solution.
NEW QUESTION # 99
A company hosts a web application on an Amazon EC2 instance. The web server logs are published to Amazon CloudWatch Logs. The log events have the same structure and include the HTTP response codes associated with user requests. The company needs to monitor the number of times the web server returns an HTTP 404 response.
What is the MOST operationally efficient solution that meets these requirements?
Answer: D
Explanation:
Comprehensive Explanation (250-350 words):
CloudWatch Logs metric filters allow log data to be converted into CloudWatch metrics in near real time.
This enables continuous monitoring without custom code or scheduled queries. Metric filters are ideal when log events have a consistent structure and specific patterns, such as HTTP response codes.
By defining a metric filter that matches HTTP 404 responses, CloudWatch can increment a metric each time a
404 occurs. This metric can then be used for dashboards, alarms, and trend analysis. This approach is fully managed, scalable, and requires minimal operational effort.
Options B, C, and D rely on subscription filters or periodic queries, which introduce unnecessary complexity, latency, and maintenance overhead. Therefore, metric filters are the most efficient solution.
NEW QUESTION # 100
A CloudOps engineer is maintaining a web application that uses an Amazon CloudFront web distribution, an Application Load Balancer (ALB), Amazon RDS, and Amazon EC2 in a VPC. All services have logging enabled. The CloudOps engineer needs to investigate HTTP Layer 7 status codes from the web application.
Which log sources contain the status codes? (Select TWO.)
Answer: B,E
Explanation:
Layer 7 (application-layer) HTTP status codes such as 200, 404, and 500 are generated by web-facing services that process HTTP requests. In this architecture, both CloudFront and the Application Load Balancer (ALB) operate at Layer 7 and record HTTP response information in their access logs.
ALB access logs include detailed request and response data such as client IP address, request path, target response status code, and latency. These logs are essential for analyzing how backend EC2 instances respond to client requests.
CloudFront access logs record viewer requests and responses at the edge locations. These logs also include HTTP status codes returned to the client, making them critical for understanding end-user experience and edge-level behavior.
VPC Flow Logs capture network-level (Layer 3 and 4) traffic metadata such as source IP, destination IP, ports, and protocol. They do not contain HTTP status codes. AWS CloudTrail logs API calls to AWS services and does not capture application response codes. RDS logs contain database-related information, not HTTP responses.
Therefore, the correct sources for HTTP Layer 7 status codes are ALB access logs and CloudFront access logs.
NEW QUESTION # 101
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