A company provides an API interface to customers so the customers can retrieve their financial information. Еhe company expects a larger number of requests during peak usage times of the year.The company requires the API to respond consistently with low latency to ensure customer satisfaction. The company needs to provide a compute host for the API.Which solution will meet these requirements with the LEAST operational overhead?
Answer(s): B
The correct answer is B.B) API Gateway with Lambda functions and provisioned concurrency provides low latency, scalable API access with minimal operational overhead since Lambda auto-scales instantly and provisioned concurrency guarantees ready-to-serve instances, avoiding cold starts during peak workloads.A) ALB with ECS still requires managing container workloads and cluster orchestration, increasing operational overhead compared to serverless. C) ALB with EKS adds substantial management of Kubernetes infrastructure, not aligned with least overhead. D) API Gateway with Lambda and reserved concurrency reduces some latency guarantees but reserved concurrency is a fixed cap and incurs management overhead; provisioned concurrency offers immediate capacity scaling without cold starts.
A company wants to send all AWS Systems Manager Session Manager logs to an Amazon S3 bucket for archival purposes.Which solution will meet this requirement with the MOST operational efficiency?
Answer(s): A
S) A is correct because Systems Manager Session Manager supports direct export of session data to S3 for archival without extra tooling, ensuring simplest, most operationally efficient flow. A) enables native integration and centralized storage.B is incorrect because CloudWatch Logs require setup of agent and log group, plus an additional export step to S3; this adds complexity and ongoing maintenance for archival.C is incorrect because using a Systems Manager document with EventBridge to run daily is inefficient for real-time session data capture and adds scheduling overhead and management.D is incorrect because pushing through CloudWatch Logs to Kinesis Firehose to S3 introduces extra services and latency, increasing operational overhead.
An application uses an Amazon RDS MySQL DB instance. The RDS database is becoming low on disk space. A solutions architect wants to increase the disk space without downtime.Which solution meets these requirements with the LEAST amount of effort?
R) A) storage autoscaling in RDS automatically expands storage when usage grows, avoiding downtime and manual intervention, meeting the “least effort” requirement.B) Increasing instance size may help compute or IOPS but does not guarantee increased available disk space, and can involve downtime or reconfiguration.C) Changing storage type to Provisioned IOPS does not inherently increase capacity and adds cost; not a disk-space expansion solution.D) Backup/restore with stop/start introduces downtime and manual steps; not aligned with “least effort” or zero-downtime requirement.
A consulting company provides professional services to customers worldwide. The company provides solutions and tools for customers to expedite gathering and analyzing data on AWS. The company needs to centrally manage and deploy a common set of solutions and tools for customers to use for self-service purposes.Which solution will meet these requirements?
A concise explanation of the correct answer:B) Create AWS Service Catalog products for the customers. Service Catalog centrally manages and provisions a curated set of IT services and resources as self-service products, enabling standardized deployment across multiple customers.A) CloudFormation templates are infrastructure as code but don’t provide a self-service catalog and centralized governance for multiple customers.C) Systems Manager templates (Run Command/Automation) aren’t designed to publish a reusable catalog of products for customers.D) Config items pertain to resource configurations for compliance, not offering a self-service product catalog.
A company is designing a new web application that will run on Amazon EC2 Instances. The application will use Amazon DynamoDB for backend data storage. The application traffic will be unpredictable. The company expects that the application read and write throughput to the database will be moderate to high. The company needs to scale in response to application traffic.Which DynamoDB table configuration will meet these requirements MOST cost-effectively?
D) is not chosen; correct is B.B) DynamoDB on-demand mode with DynamoDB Standard table class is most cost-effective for unpredictable, moderate-to-high traffic because it automatically scales capacity to meet demand without manual provisioning or capacity planning, and charges only per read/write request unit consumed.A) Provisioned with auto scaling adds complexity and potential throttling during sudden spikes if the target scales aren’t sufficient; may incur higher cost than on-demand for variable traffic.C) DynamoDB Standard-IA is optimized for infrequent access and lower throughput; not suitable for hot, unpredictable workloads, and auto scaling on IA is atypical.D) On-demand with IA class is not standard practice; IA is for infrequent access, reducing performance.
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