A company collects data for temperature, humidity, and atmospheric pressure in cities across multiple continents. The average volume of data that the company collects from each site daily is 500 GB. Each site has a high-speed Internet connection.The company wants to aggregate the data from all these global sites as quickly as possible in a single Amazon S3 bucket. The solution must minimize operational complexity.Which solution meets these requirements?
Answer(s): A
S3 Transfer Acceleration with multipart uploads provides fast, globally distributed uploads directly to the target bucket, minimizing latency and operational complexity by leveraging CloudFront edge locations, so the data aggregates quickly in one S3 bucket.A) Correct. S3 Transfer Acceleration uses optimized network paths for cross‑continent uploads; multipart uploads improve throughput and are suitable for large daily volumes, aligning with “minimize operational complexity.”B) Cross-Region Replication adds latency and requires managing source and destination buckets; not ideal for single‑bucket aggregation and increases administration.C) Snowball Edge is manual, coarse‑grained, and batch-oriented, unsuitable for continuous global aggregation with low operational overhead.D) EC2/EBS transfer requires snapshotting across Regions, involving significant orchestration and downtime, not optimal for rapid, centralized S3 ingestion.
A company needs the ability to analyze the log files of its proprietary application. The logs are stored in JSON format in an Amazon S3 bucket. Queries will be simple and will run on-demand. A solutions architect needs to perform the analysis with minimal changes to the existing architecture.What should the solutions architect do to meet these requirements with the LEAST amount of operational overhead?
Answer(s): C
Athena directly queries JSON logs in S3 with on-demand SQL without ETL or managing infrastructure, minimizing operational overhead.A) Redshift requires loading data, provisioning clusters, and ongoing maintenance, adding overhead.B) CloudWatch Logs is not a native JSON S3 query service and does not provide on-demand direct S3 SQL querying for existing S3 logs.D) Glue catalog plus EMR adds orchestration and cluster management; more overhead than serverless Athena for ad-hoc analysis.
A company uses AWS Organizations to manage multiple AWS accounts for different departments. The management account has an Amazon S3 bucket that contains project reports. The company wants to limit access to this S3 bucket to only users of accounts within the organization in AWS Organizations.Which solution meets these requirements with the LEAST amount of operational overhead?
The correct answer is A because the aws:PrincipalOrgID global condition key allows S3 access policies to grant permissions only to principals that belong to the AWS Organizations management account’s organization, requiring minimal ongoing management.B is incorrect because aws:PrincipalOrgPaths would require maintaining OUs and manual path logic per policy, adding overhead and complexity.C is incorrect because CloudTrail monitoring does not enforce access, it only records events; it cannot restrict S3 access in real time.D is incorrect because aws:PrincipalTag would require tagging each user and maintaining tag-based permissions, which adds operational overhead and manual tagging effort.
An application runs on an Amazon EC2 instance in a VPC. The application processes logs that are stored in an Amazon S3 bucket. The EC2 instance needs to access the S3 bucket without connectivity to the internet.Which solution will provide private network connectivity to Amazon S3?
A) Establishing a gateway VPC endpoint for S3 provides private, regionally scoped connectivity from the VPC to S3 without requiring internet access or NAT. It keeps traffic within the AWS network.B) CloudWatch Logs streaming and exporting to S3 does not provide private VPC-only access from EC2 to S3; it relies on internet or gateway/endpoint for transfer, not a direct VPC path.C) An instance profile (IAM role) permits permissions but does not enable private networking to S3; data still traverses the public AWS network unless a VPC endpoint is used.D) API Gateway with private link to S3 is not a standard, direct method for EC2-to-S3 access; it adds an extra service boundary and is not the typical private connectivity mechanism.
A company is hosting a web application on AWS using a single Amazon EC2 instance that stores user-uploaded documents in an Amazon EBS volume. For better scalability and availability, the company duplicated the architecture and created a second EC2 instance and EBS volume in another Availability Zone, placing both behind an Application Load Balancer. After completing this change, users reported that, each time they refreshed the website, they could see one subset of their documents or the other, but never all of the documents at the same time.What should a solutions architect propose to ensure users see all of their documents at once?
The correct answer is C. EFS provides a shared, scalable file system accessible from multiple EC2 instances, enabling both servers to access the full set of documents consistently.A is wrong because EBS volumes are instance-attached and not shared across AZs or instances; duplicating data defeats scalability and increases maintenance. B is wrong because ALB routing to a single server per request still limits visibility to that node’s data; it cannot synchronize across instances. D is wrong because ALB cannot aggregate and merge documents from two back-end servers in a single request; it would require application logic and data consistency handling. C satisfies data durability, consistency, and shared access across instances.
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