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| Certification Vendor: | AWS |
|---|---|
| Exam Name: | AWS Certified CloudOps Engineer - Associate |
| Exam Number: | SOA-C03 |
| Available Languages: | Korean, English, Simplified Chinese, Japanese |
| Exam Price: | USD 150 |
| Certificate Validity Period: | 3 years |
| Exam Format: | Multiple response, Multiple choice |
| Passing Score: | 720 (scaled score, out of 100-1000) |
| Exam Duration: | 130 minutes |
| Related Certifications: | AWS Certified CloudOps Engineer - Associate |
| Real Exam Qty: | 65 (50 scored, 15 unscored) |
| Sample Questions: | Amazon SOA-C03 Sample Questions |
| Exam Way: | Online (proctored) or at a testing center (Pearson VUE or PSI) |
| Pre Condition: | Recommended: 1 year of experience with AWS deployment, management, troubleshooting, networking, and security. Experience in an operations role such as system administrator is helpful. |
| 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 # 11
A company runs applications on Amazon EC2 instances. The company wants to ensure that SSH ports on the EC2 instances are never open. The company has enabled AWS Config and has set up the restricted-ssh AWS managed rule.
A CloudOps engineer must implement a solution to remediate SSH port access for noncompliant security groups.
What should the engineer do to meet this requirement with the MOST operational efficiency?
Answer: D
Explanation:
The AWS Cloud Operations and Governance documentation specifies that AWS Config can be paired with AWS Systems Manager Automation runbooks for automatic remediation of noncompliant resources.
For SSH restrictions, the restricted-ssh managed rule detects any security group allowing inbound traffic on port 22. To automatically remediate these findings, AWS provides the AWS- DisableIncomingSSHOnPort22 runbook. This runbook programmatically removes inbound rules that allow port 22 traffic from affected security groups.
This approach achieves continuous compliance with minimal human intervention. By contrast, sending notifications (Option A) does not enforce remediation, API-based scripts (Option C) add operational overhead, and manual remediation (Option D) violates automation best practices.
Therefore, the most efficient CloudOps solution is Option B, using AWS Config with the AWS- DisableIncomingSSHOnPort22 automation runbook for automatic, scalable enforcement.
Reference: AWS Cloud Operations & Governance Guide - Automated Security Remediation Using Config Managed Rules and Systems Manager Runbooks
NEW QUESTION # 12
A company hosts an FTP server on EC2 instances. AWS Security Hub sends findings to Amazon EventBridge when the FTP port becomes publicly exposed in attached security groups.
A CloudOps engineer needs an automated, event-driven remediation solution to remove public access from security groups.
Which solution will meet these requirements?
Answer: C
Explanation:
Per the AWS Cloud Operations and Security Automation documentation, Security Hub integrates with Amazon EventBridge to publish findings in real time. These events can trigger automated responses using AWS Lambda functions or AWS Systems Manager Automation runbooks.
In this scenario, the correct CloudOps approach is to configure the existing EventBridge rule to invoke a Lambda function that inspects the event payload, identifies the affected security group, and removes the offending inbound rule (e.g., port 21 open to 0.0.0.0/0).
This event-driven remediation provides continuous compliance and eliminates manual intervention. Cron jobs (Options B and C) contradict event-driven design and add operational overhead. Stopping instances (Option A) doesn't address the root cause - the insecure security group.
Thus, Option D aligns with AWS best practices for automated security remediation through EventBridge and Lambda.
NEW QUESTION # 13
A CloudOps engineer creates a new VPC that includes a public subnet and a private subnet. The CloudOps engineer successfully launches 11 Amazon EC2 instances in the private subnet. The CloudOps engineer attempts to launch one more EC2 instance in the same subnet but receives an error stating that not enough free IP addresses are available.
What must the CloudOps engineer do to deploy more EC2 instances?
Answer: C
Explanation:
Each subnet in a VPC has a fixed CIDR range that determines how many private IP addresses are available.
AWS reserves five IP addresses per subnet, reducing the usable address count. Once the available IP addresses are exhausted, no more instances can be launched in that subnet.
AWS does not allow changing the CIDR block of an existing subnet. Therefore, Option A is invalid. Option B does not increase the number of IP addresses; Availability Zones are properties of subnets, not expansions of their CIDR ranges. Option C is incorrect because Elastic IP addresses are public IPs and do not increase the number of private IP addresses available in a subnet.
The only viable solution is to create a new subnet with a larger or additional CIDR range and deploy additional EC2 instances there. This approach aligns with AWS VPC design principles and is the standard method for handling IP exhaustion.
NEW QUESTION # 14
A CloudOps engineer needs to build an event infrastructure for custom application-specific events. The events must be sent to an AWS Lambda function for processing. The CloudOps engineer must record the events so they can be replayed later by event type or event time. Which solution will meet these requirements?
Answer: D
Explanation:
Amazon EventBridge supports custom event buses for application-specific events. EventBridge archives allow events to be retained and replayed later based on time ranges or event patterns, directly meeting the replay requirement.
Creating a custom event bus provides isolation and governance for application events. The archive preserves events automatically, and EventBridge rules route events to AWS Lambda for processing without custom code.
Options B and C do not properly align with custom event use cases or supported archive behavior.
Option D lacks native replay functionality.
Therefore, a custom event bus with an archive and rule is the correct solution.
NEW QUESTION # 15
A multinational company uses an organization in AWS Organizations to manage over 200 member accounts across multiple AWS Regions. The company must ensure that all AWS resources meet specific security requirements.
The company must not deploy any EC2 instances in the ap-southeast-2 Region. The company must completely block root user actions in all member accounts. The company must prevent any user from deleting AWS CloudTrail logs, including administrators. The company requires a centrally managed solution that the company can automatically apply to all existing and future accounts. Which solution will meet these requirements?
Answer: A
Explanation:
AWS CloudOps governance best practices emphasize centralized account management and preventive guardrails. AWS Control Tower integrates directly with AWS Organizations and provides "Region deny controls" and "Service Control Policies (SCPs)" that apply automatically to all existing and newly created member accounts. SCPs are organization-wide guardrails that define the maximum permissions for accounts. They can explicitly deny actions such as launching EC2 instances in a specific Region, or block root user access.
To prevent CloudTrail log deletion, SCPs can also include denies on cloudtrail:DeleteTrail and s3:
DeleteObject actions targeting the CloudTrail log S3 bucket. These SCPs ensure that no user, including administrators, can violate the compliance requirements.
AWS documentation under the Security and Compliance domain for CloudOps states:
"Use AWS Control Tower to establish a secure, compliant, multi-account environment with preventive guardrails through service control policies and detective controls through AWS Config." This approach meets all stated needs: centralized enforcement, automatic propagation to new accounts, region- based restrictions, and immutable audit logs. Options A, B, and D either detect violations reactively or lack complete enforcement and automation across future accounts.
References:* AWS Certified CloudOps Engineer - Associate (SOA-C03) Exam Guide - Domain 4: Security and Compliance* AWS Control Tower - Preventive and Detective Guardrails* AWS Organizations - Service Control Policies (SCPs)* AWS Well-Architected Framework - Security Pillar (Governance and Centralized Controls)
NEW QUESTION # 16
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