Amazon Web Services Updated SAP-C02 Exam Questions and Answers by amyra

https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/resolver.html

S3 Event Notifications is a feature that allows users to receive notifications when certain events happen in an S3 bucket, such as object creation or deletion1. Users can configure S3 Event Notifications to invoke an AWS Lambda function when a user stores an image in the bucket. Lambda is a serverless compute service that runs code in response to events and automatically manages the underlying compute resources2. The Lambda function can resize the image in place and store the original file in the same S3 bucket. This way, the solution can handle significant variance in demand and be reliable at enterprise scale. Thesolution can also rerun processing jobs in the event of failure by using the retry and dead-letter queue features of Lambda2.

S3 Lifecycle is a feature that allows users to manage their objects so that they are stored cost-effectively throughout their lifecycle3. Users can create an S3 Lifecycle policy to move all stored images to S3 Standard-Infrequent Access (S3 Standard-IA) after 6 months. S3 Standard-IA is a storage class designed for data that is accessed less frequently, but requires rapid access when needed4. It offers a lower storage cost than S3 Standard, but charges a retrieval fee. Therefore, moving the images to S3 Standard-IA after 6 months can reduce the storage cost for the solution.

Option A is incorrect because using AWS Step Functions to process the S3 event that occurs when a user stores an image is not necessary or cost-effective. AWS Step Functions is a service that lets users coordinate multiple AWS services into serverless workflows. However, for this use case, a single Lambda function can handle the image resizing task without needing Step Functions.

Option B is incorrect because using Amazon EventBridge to process the S3 event that occurs when a user uploads an image is not necessary or cost-effective. Amazon EventBridge is a serverless event bus service that makes it easy to connect applications with data from a variety of sources. However, for this use case, S3 Event Notifications can directly invoke the Lambda function without needing EventBridge.

Option D is incorrect because using Amazon Simple Queue Service (Amazon SQS) to process the S3 event that occurs when a user stores an image is not necessary or cost-effective. Amazon SQS is a fully managed message queuing service that enables users to decouple and scale microservices, distributed systems, and serverless applications. However, for this use case, S3 Event Notifications can directly invoke the Lambda function without needing SQS. Moreover, storing the resized file in an S3 bucket that uses S3 Standard-IA will incur a retrieval fee every time the file is accessed, which may not be cost-effective for frequently accessed files.

Mountpoint for Amazon S3allows EC2 instances to directly access files in S3 as aPOSIX-compliant mount point, ensuring they always get the latest data without copying or syncing.

It’s simple and cost-effective for read-heavy patterns.

Mountpoint for Amazon S3

To minimize EKS compute costs:

A. Rebuild the application container images to support ARM64 architecture: Graviton instances (ARM-based) require container images built for the ARM64 architecture. This ensures compatibility and allows leveraging Graviton-based compute.

C. Migrate the EKS nodes to the most recent generation of Graviton-based instances: AWS Graviton instances (e.g., c7g, m7g) offer significant price/performance benefits over x86_64 instances. By migrating EKS worker nodes to Graviton, the company can reduce compute costs substantially.

E. Purchase a new EC2 Instance Savings Plan for the newly selected Graviton instance family: Savings Plans provide cost savings compared to On-Demand pricing. After moving to Graviton, purchasing a new Savings Plan tailored for these instance families ensures continued cost savings.This approach aligns with AWS cost optimization best practices—migrating to the latest instance types and purchasing Savings Plans to match the new usage pattern—while ensuring full compatibility with EKS.