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| Certification Vendor: | Amazon Web Services (AWS) |
|---|---|
| Exam Name: | AWS Certified CloudOps Engineer - Associate |
| Exam Number: | SOA-C03 |
| Available Languages: | Simplified Chinese, Japanese, English, Korean |
| Exam Duration: | 130 minutes |
| Real Exam Qty: | 65 (50 scored, 15 unscored) |
| Related Certifications: | AWS Certified SysOps Administrator - Associate (SOA-C02, retired) |
| Passing Score: | 720 (scaled score 100–1000) |
| Exam Format: | Multiple choice, Multiple response |
| Certificate Validity Period: | 3 years |
| Exam Price: | 150 USD |
| Recommended Training: | AWS Training and Certification AWS Official Exam Guide |
| Exam Registration: | Pearson VUE Scheduling AWS Certification Registration |
| 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 # 211
A web application runs on Amazon EC2 instances in the us-east-1 Region and the us-west-2 Region. The instances run behind an Application Load Balancer (ALB) in each Region. An Amazon Route 53 hosted zone controls DNS records.
The instances in us-east-1 are production resources. The instances in us-west-2 are for disaster recovery. EC2 Auto Scaling groups are configured based on the ALBRequestCountPerTarget metric in both Regions.
A SysOps administrator must implement a solution that provides failover from us-east-1 to us-west-2. The instances in us-west-2 must be used only for failover.
Which solution will meet these requirements?
Answer: B
Explanation:
Comprehensive and Detailed Explanation From Exact Extract of AWS CloudOps Documents:
The requirement is classic active-passive (production in us-east-1, DR in us-west-2 "only for failover"). The most operationally efficient and purpose-built solution is Route 53 failover routing combined with health checks. With failover routing, Route 53 designates one record as PRIMARY (us-east-1) and another as SECONDARY (us-west-2). Route 53 continuously evaluates the health check associated with the primary endpoint (commonly the ALB DNS name or a specific health-check path). If the primary fails, Route 53 automatically returns the secondary record, directing client DNS resolution to the DR region. This ensures us- west-2 is used only when us-east-1 is unhealthy, directly matching the requirement.
Latency routing (Option B) is designed to route users to the region with the lowest latency, which can actively send traffic to us-west-2 even when us-east-1 is healthy-violating the "DR only" constraint. Options C and D introduce custom automation (CloudWatch + Lambda + DNS record updates) that increases operational overhead, adds failure modes, and is unnecessary because Route 53 already provides managed health-check- based failover. Additionally, "EC2 instance terminated" is not a reliable proxy for full application availability, and DNS modification automation is more complex than using native Route 53 failover policies.
References:
Amazon Route 53 Developer Guide - Health checks and failover routing policy AWS Well-Architected Framework - Reliability pillar (failover, DR patterns) AWS SysOps Administrator Study Guide - DNS failover and Route 53 routing policies
NEW QUESTION # 212
A company's application runs on Amazon EC2 instances behind an Application Load Balancer (ALB). The company has configured an Amazon CloudWatch alarm to monitor the HTTPCode_Target_5XX_Count metric. The application crashes every few days during business hours. The crashes trigger the CloudWatch alarm and result in service disruption.
The cause of the crashes is a memory leak in the application. While developers work to fix the problem, a CloudOps engineer needs to implement a temporary solution. The solution must automatically reboot the EC2 instances every day and must minimize application disruption during business hours.
Which solution will meet these requirements?
Answer: D
Explanation:
AWS Systems Manager Maintenance Windows can schedule operational tasks outside business hours and target the EC2 instances automatically. The AWS-RestartEC2Instance runbook reboots the instances on the defined schedule, reducing the likelihood of memory-leak crashes during business hours while minimizing service disruption.
NEW QUESTION # 213
A company uses AWS CloudFormation stacks to manage its infrastructure. The company's developers commit infrastructure changes to the company's Git repository. The company wants to automate updates to the CloudFormation stacks when developers commit changes. The company requires change set generation before deployment and notification of pending changes for approval. The solution must also minimize infrastructure maintenance overhead.
Which solution will meet these requirements?
Answer: A
Explanation:
AWS CodePipeline is the correct managed CI/CD service for automating infrastructure deployments from a Git repository while preserving approval gates. A pipeline can use GitHub or another supported source provider, create CloudFormation change sets, and include a manual approval action before executing the change set. Notifications can be sent through Amazon SNS so approvers are informed before deployment proceeds. This meets all requirements: automated updates, change set generation, approval notification, and low infrastructure maintenance. CloudFormation Git sync can automate stack updates from a repository, but the option describes notification only after deployment, which does not satisfy the pending approval requirement. A Lambda-based workflow would require custom orchestration and approval handling. Systems Manager Automation is not the standard Git-driven CloudFormation deployment pipeline tool. Therefore, CodePipeline with CloudFormation change sets is best.
NEW QUESTION # 214
A company that uses AWS Organizations recently implemented AWS Control Tower. The company now needs to centralize identity management. A CloudOps engineer must federate AWS IAM Identity Center with an external SAML 2.0 identity provider (IdP) to centrally manage access to all AWS accounts and cloud applications.
Which prerequisites must the CloudOps engineer have so that the CloudOps engineer can connect to the external IdP? (Select TWO.)
Answer: A,B
Explanation:
According to the AWS Cloud Operations and Identity Management documentation, when configuring federation between IAM Identity Center (formerly AWS SSO) and an external SAML
2.0 identity provider, two key prerequisites are required:
The IAM Identity Center SAML metadata file -- This is uploaded to the external IdP to establish trust, define SAML endpoints, and enable identity federation.
The IdP metadata (including the public X.509 certificate) -- This information is imported into IAM Identity Center to validate authentication assertions and encryption signatures.
IAM Identity Center and the IdP exchange this metadata to mutually establish secure, bidirectional federation.
Network-level details such as IP addresses (Option C) are unnecessary. Root access (Option D) or permissions to member accounts (Option E) are not required; only Control Tower or IAM administrative permissions in the management account are needed for setup.
Thus, the correct answer is A and B -- the SAML metadata from both sides is required for federation.
NEW QUESTION # 215
An ecommerce company uses Amazon ElastiCache (Redis OSS) for caching product queries. The CloudOps engineer observes a large number of cache evictions in Amazon CloudWatch metrics and needs to reduce evictions while retaining popular data in cache.
Which solution meets these requirements with the least operational overhead?
Answer: B
Explanation:
According to the AWS Cloud Operations and ElastiCache documentation, cache evictions occur when the cache runs out of memory and must remove items to make space for new data.
To reduce evictions and retain frequently accessed items, AWS recommends increasing the total available memory - either by scaling up to larger node types or scaling out by adding shards/nodes. Migrating to a cluster with larger nodes is the simplest and most efficient solution because it immediately expands capacity without architectural changes.
Adjusting TTL (Options B and C) controls expiration timing, not memory allocation. Adding a single node (Option A) may help, but redistributing data requires resharding, introducing more complexity.
Thus, Option D provides the lowest operational overhead and ensures high cache hit rates by increasing total cache memory.
Reference: AWS Cloud Operations & Performance Optimization Guide - Reducing Evictions and Scaling Amazon ElastiCache Clusters
NEW QUESTION # 216
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