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| Certification Vendor: | Amazon Web Services (AWS) |
|---|---|
| Exam Name: | AWS Certified CloudOps Engineer - Associate |
| Exam Number: | SOA-C03 |
| Exam Price: | 150 USD |
| Exam Duration: | 130 minutes |
| Available Languages: | English, Simplified Chinese, Japanese, Korean |
| Real Exam Qty: | 65 (50 scored, 15 unscored) |
| Exam Format: | Multiple response, Multiple choice |
| Related Certifications: | AWS Certified SysOps Administrator - Associate (SOA-C02, retired) |
| Passing Score: | 720 (scaled score 100–1000) |
| Certificate Validity Period: | 3 years |
| Recommended Training: | AWS Official Exam Guide AWS Training and Certification |
| 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 # 225
A company runs custom statistical analysis software on a cluster of Amazon EC2 instances. The software is highly sensitive to network latency between nodes, although network throughput is not a limitation.
Which solution will minimize network latency?
Answer: D
Explanation:
The AWS Cloud Operations and Compute documentation explains that placement groups control how EC2 instances are physically arranged within AWS data centers to optimize network performance.
Among the available placement strategies:
Cluster placement groups place instances physically close together within a single Availability Zone, connected through high-bandwidth, low-latency networking (ideal for tightly coupled, HPC, or distributed workloads).
Spread placement groups distribute instances across distinct racks or Availability Zones for fault tolerance, increasing latency.
Partition placement groups separate instances into partitions for isolation, not latency reduction.
Therefore, to minimize latency for workloads such as computational clusters, the CloudOps engineer should use a cluster placement group. This placement ensures single-digit microsecond latency and enhanced packet rate performance between instances.
Elastic IPs (Option B) do not influence internal networking. Jumbo frames (Option C) can marginally improve throughput but do not reduce propagation latency. Spread placement (Option D) increases distance, worsening latency.
Hence, Option A - using a cluster placement group - delivers the lowest possible network latency and is AWS's best-practice design for HPC-style clusters.
NEW QUESTION # 226
A company hosts a production MySQL database on an Amazon Aurora single-node DB cluster.
The database is queried heavily for reporting purposes. The DB cluster is experiencing periods of performance degradation because of high CPU utilization and maximum connections errors. A CloudOps engineer needs to improve the stability of the database.
Which solution will meet these requirements?
Answer: A
Explanation:
Amazon Aurora supports up to 15 Aurora Replicas that share the same storage volume and provide read scaling and improved availability. Official guidance states that replicas "offload read traffic from the writer" and that you should direct read-only workloads to the reader endpoint, reducing CPU pressure and connection counts on the primary. Aurora also supports Replica Auto Scaling through Application Auto Scaling policies using metrics such as CPU utilization or connections to add or remove replicas automatically. This design addresses both high CPU and maximum connections by moving reporting traffic to read replicas while keeping a single write primary for OLTP. Option B creates a separate cluster with independent storage, increasing operational overhead and data synchronization complexity. Options C and D introduce application-layer caching changes that may not guarantee data freshness or relieve the write node directly. Therefore, adding read replicas and routing reporting to the reader endpoint, with auto scaling based on load, is the least intrusive, CloudOps-aligned way to stabilize performance.
NEW QUESTION # 227
A company's application is hosted by an internet provider at app.example.com. The company wants to access the application by using www.company.com, which the company owns and manages with Amazon Route 53.
Which Route 53 record should be created to address this requirement?
Answer: D
Explanation:
Comprehensive Explanation (250-350 words):
When mapping one domain name to another domain name that is hosted outside AWS, a CNAME record is the correct DNS record type. CNAME records map an alias name (www.company.com) to a canonical domain name (app.example.com).
Alias records cannot be used to point to non-AWS resources. A and PTR records map IP addresses, not domain names, and are therefore not appropriate.
Because www.company.com is not the zone apex, a CNAME record is valid and supported. This solution requires no additional infrastructure and is the standard DNS approach for this scenario.
NEW QUESTION # 228
A company has deployed Amazon EC2 instances from custom AMIs in two AWS Regions. All instances are registered with AWS Systems Manager. The company discovers a critical zero-day OS exploit but does not know which instances are affected.
A CloudOps engineer must deploy operating system patches with the LEAST operational overhead.
Which solution will meet this requirement?
Answer: A
Explanation:
AWS Systems Manager Patch Manager provides a centralized and automated way to scan, identify, and remediate missing patches across managed instances. Patch baselines define which patches are approved, and scan operations identify affected instances without applying changes.
Using Patch Now allows immediate remediation across Regions with minimal setup. Other options introduce unnecessary complexity or require manual intervention.
Therefore, Patch Manager with scan and Patch Now is the least operationally intensive solution.
NEW QUESTION # 229
A company is implementing Cross-Region Replication (CRR) for the company's Amazon S3 buckets. The S3 buckets are in the us-east-1 Region. The company uses server-side encryption with Amazon S3 managed keys (SSE-S3) to secure the data in the buckets.
A CloudOps engineer creates a new AWS account to store backups in S3 buckets. All backup buckets are in the us-west-2 Region. The CloudOps engineer enables versioning on the source buckets and the destination buckets. The CloudOps engineer creates an IAM role in the source account for s3.amazonaws.com. The CloudOps engineer grants the IAM role permissions to perform read actions in the source buckets, replicate actions in the destination buckets, and encrypt actions that use the destination bucket's key. The destination bucket policy allows the IAM role to perform replicate and read actions.
After the replication configuration is complete, the CloudOps engineer notices that objects are not replicating.
What is the likely reason the objects are not replicating?
Answer: D
Explanation:
For cross-account S3 replication, the replication role and the destination bucket permissions must support ownership override when the destination account needs ownership of the replicated objects. Without the ObjectOwnerOverrideToBucketOwner permission, replication can fail because Amazon S3 cannot transfer object ownership correctly to the destination bucket owner in the backup account.
NEW QUESTION # 230
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