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| Certification Vendor: | Amazon Web Services (AWS) |
|---|---|
| Exam Name: | AWS Certified CloudOps Engineer - Associate |
| Exam Number: | SOA-C03 |
| Exam Format: | Multiple response, Multiple choice |
| Real Exam Qty: | 65 (50 scored, 15 unscored) |
| Exam Duration: | 130 minutes |
| Available Languages: | Japanese, Korean, English, Simplified Chinese |
| Certificate Validity Period: | 3 years |
| Exam Price: | 150 USD |
| Passing Score: | 720 (scaled score 100–1000) |
| Related Certifications: | AWS Certified SysOps Administrator - Associate (SOA-C02, retired) |
| Recommended Training: | AWS Official Exam Guide AWS Training and Certification |
| 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 |
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NEW QUESTION # 222
A company runs a business application on more than 300 Linux-based instances. Each instance has the AWS Systems Manager Agent (SSM Agent) installed. The company expects the number of instances to grow in the future. All business application instances have the same user-defined tag.
A CloudOps engineer wants to run a command on all the business application instances to download and install a package from a private repository. To avoid overwhelming the repository, the CloudOps engineer wants to ensure that no more than 30 downloads occur at one time.
Which solution will meet this requirement in the MOST operationally efficient way?
Answer: B
Explanation:
Comprehensive Explanation (250-350 words):
AWS Systems Manager Run Command includes a built-in rate control feature that allows administrators to control the maximum number of concurrent executions across target instances. This directly addresses the requirement to limit downloads to 30 at a time without custom orchestration or additional services.
By targeting instances using tags, the solution automatically scales as new instances are added, which aligns with future growth expectations. Rate control ensures controlled concurrency and protects the private repository from overload.
Option A is manual and does not scale operationally. Option B introduces unnecessary complexity with Lambda and concurrency management that does not map cleanly to instance execution concurrency. Option D significantly increases architectural complexity without added value.
Run Command with rate control is the simplest, most native, and most scalable solution.
NEW QUESTION # 223
A company is running workloads on premises and on AWS. A CloudOps engineer needs to automate tasks across all servers on premises by using AWS services. The CloudOps engineer must not install long-term credentials on the on-premises servers.
What should the CloudOps engineer do to meet these requirements?
Answer: C
Explanation:
AWS Systems Manager supports hybrid and multicloud managed nodes through managed-instance activations. The CloudOps engineer creates an activation in Systems Manager, installs SSM Agent on the on- premises servers, and registers the servers by using the activation code and activation ID. This allows Systems Manager to manage those servers without storing long-term IAM user credentials on each machine. Option A is wrong because IAM instance profiles attach to EC2 instances, not on-premises servers. Option C misunderstands IAM policies; policies are permission documents, not credentials that can be downloaded to servers. Option D violates the requirement because IAM access keys are long-term credentials and should not be installed on servers. Managed-instance activation is the secure and operationally correct hybrid management approach.
NEW QUESTION # 224
A company runs a website from Sydney, Australia. Users in the United States (US) and Europe are reporting that images and videos are taking a long time to load. However, local testing in Australia indicates no performance issues. The website has a large amount of static content in the form of images and videos that are stored in Amazon S3. Which solution will result in the MOST improvement in the user experience for users in the US and Europe?
Answer: D
Explanation:
Amazon CloudFront caches static content such as images and videos at edge locations close to users worldwide. This reduces network latency and the distance that content must travel from the S3 origin in Australia, significantly improving load times for users in the US and Europe.
NEW QUESTION # 225
A company is migrating a legacy application to AWS. The application runs on EC2 instances across multiple Availability Zones behind an Application Load Balancer (ALB). The target group routing algorithm is set to weighted random, and the application requires session affinity (sticky sessions).
After deployment, users report random application errors that were not present before migration, even though target health checks are passing.
Which solution will meet this requirement?
Answer: C
Explanation:
According to the AWS Cloud Operations and Elastic Load Balancing documentation, Application Load Balancer (ALB) supports multiple routing algorithms to distribute requests among targets:
Round robin (default)
Least outstanding requests (LOR)
Weighted random
When applications require session affinity, AWS recommends using "least outstanding requests" as the load balancing algorithm because it reduces latency, distributes load evenly, and ensures consistent target responsiveness during high traffic.
Using weighted random routing with sticky sessions can cause sessions to be routed inconsistently if one target's capacity fluctuates, leading to session mismatches and application errors - especially when user sessions rely on instance-specific state.
Disabling cross-zone balancing (Option C) or adjusting deregistration delay (Option D) does not address routing inconsistency. Anomaly mitigation (Option B) protects against target performance degradation, not sticky-session misrouting.
Therefore, the correct solution is Option A - changing the target group's routing algorithm to least outstanding requests ensures smoother, predictable session handling and resolves random application errors.
NEW QUESTION # 226
A company uses multiple Amazon RDS databases to support an application. The application receives all its traffic during weekdays and is idle during weekends. The company wants a solution to automatically manage the RDS DB instances during idle periods to optimize costs.
Which solution will meet these requirements?
Answer: C
Explanation:
Comprehensive Explanation (250-350 words):
The Instance Scheduler on AWS is an AWS-provided solution designed specifically to start and stop AWS resources such as Amazon RDS instances on a defined schedule. This directly aligns with the requirement to automatically manage RDS instances during predictable idle periods, such as weekends, to reduce costs.
RDS instances incur compute charges while running, even if idle. Stopping them during weekends eliminates those charges while retaining storage and backups. Instance Scheduler supports tag-based scheduling, centralized management, and automated start/stop workflows without custom scripting.
Option A introduces custom automation and ongoing maintenance overhead. Option C (Reserved Instances) is unsuitable because the databases are idle for long, predictable periods and Reserved Instances charge regardless of usage. Option D is incorrect because RDS does not support auto scaling of DB instance classes based on utilization.
Instance Scheduler is the most cost-effective and operationally efficient solution for this use case.
NEW QUESTION # 227
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