A company collects and shares research data with the company's employees all over the world. The company wants to collect and store the data in an Amazon S3 bucket and process the data in the AWS Cloud. The company will share the data with the company's employees. The company needs a secure solution in the AWS Cloud that minimizes operational overhead.
Which solution will meet these requirements?
A. Use an AWS Lambda function to create an S3 presigned URL. Instruct employees to use the URL.
B. Create an IAM user for each employee. Create an IAM policy for each employee to allow S3 access. Instruct employees to use the AWS Management Console.
C. Create an S3 File Gateway. Create a share for uploading and a share for downloading. Allow employees to mount shares on their local computers to use S3 File Gateway.
D. Configure AWS Transfer Family SFTP endpoints. Select the custom identity provider options. Use AWS Secrets Manager to manage the user credentials Instruct employees to use Transfer Family.
Show Answer
Correct Answer: D
Explanation: AWS Transfer Family provides a managed, secure way for users to transfer files directly to Amazon S3 with minimal infrastructure management. Presigned URLs are temporary and unsuitable for ongoing sharing, creating IAM users for every employee increases administrative overhead, and S3 File Gateway is intended primarily for hybrid/on-premises file access rather than global user access to S3. Although the wording about Secrets Manager and 'using Transfer Family' is imperfect, D is the best fit among the available options.
Sources:
https://www.docsity.com/en/docs/aws-solution-architect-associate-saa-c03-exam-questions-and-fully-correct-answers-latest/13991643
Question 380
A solutions architect is designing a new service behind Amazon API Gateway. The request patterns for the service will be unpredictable and can change suddenly from 0 requests to over 500 per second. The total size of the data that needs to be persisted in a backend database is currently less than 1 GB with unpredictable future growth. Data can be queried using simple key-value requests.
Which combination ofAWS services would meet these requirements? (Choose two.)
A. AWS Fargate
B. AWS Lambda
C. Amazon DynamoDB
D. Amazon EC2 Auto Scaling
E. MySQL-compatible Amazon Aurora
Show Answer
Correct Answer: B, C
Explanation: AWS Lambda is the best fit for highly unpredictable traffic that can instantly scale from zero to hundreds of requests per second behind Amazon API Gateway without managing servers. Amazon DynamoDB is a fully managed key-value NoSQL database that scales automatically and is ideal for simple key-value access patterns with small initial data size and unpredictable future growth.
Question 381
A development team is creating an event-based application that uses AWS Lambda functions. Events will be generated when files are added to an Amazon S3 bucket. The development team currently has Amazon Simple Notification Service (Amazon SNS) configured as the event target from Amazon S3.
What should a solutions architect do to process the events from Amazon S3 in a scalable way?
A. Create an SNS subscription that processes the event in Amazon Elastic Container Service (Amazon ECS) before the event runs in Lambda.
B. Create an SNS subscription that processes the event in Amazon Elastic Kubernetes Service (Amazon EKS) before the event runs in Lambda
C. Create an SNS subscription that sends the event to Amazon Simple Queue Service (Amazon SQS). Configure the SOS queue to trigger a Lambda function.
D. Create an SNS subscription that sends the event to AWS Server Migration Service (AWS SMS). Configure the Lambda function to poll from the SMS event.
Show Answer
Correct Answer: C
Explanation: Using Amazon SNS to fan out notifications to an Amazon SQS queue decouples event ingestion from processing and provides buffering, retries, and scalable consumption. Configure the SQS queue as an event source for AWS Lambda so Lambda automatically polls the queue and scales processing with the queue depth. The ECS and EKS options add unnecessary compute layers, and AWS Server Migration Service is unrelated to event processing.
Question 382
A company uses Amazon FSx for NetApp ONTAP in its primary AWS Region for CIFS and NFS file shares. Applications that run on Amazon EC2 instances access the file shares. The company needs a storage disaster recovery (DR) solution in a secondary Region. The data that is replicated in the secondary Region needs to be accessed by using the same protocols as the primary Region.
Which solution will meet these requirements with the LEAST operational overhead?
A. Create an AWS Lambda function to copy the data to an Amazon S3 bucket. Replicate the S3 bucket to the secondary Region.
B. Create a backup of the FSx for ONTAP volumes by using AWS Backup. Copy the volumes to the secondary Region. Create a new FSx for ONTAP instance from the backup.
C. Create an FSx for ONTAP instance in the secondary Region. Use NetApp SnapMirror to replicate data from the primary Region to the secondary Region.
D. Create an Amazon Elastic File System (Amazon EFS) volume. Migrate the current data to the volume. Replicate the volume to the secondary Region.
Show Answer
Correct Answer: C
Explanation: Amazon FSx for NetApp ONTAP natively supports NetApp SnapMirror for cross-Region replication between FSx for ONTAP file systems. This provides an automated disaster recovery solution with low RPO/RTO while preserving SMB/CIFS and NFS access in the secondary Region. S3 replication does not preserve file share protocols, AWS Backup is backup/restore rather than continuous replication for DR, and Amazon EFS does not support SMB/CIFS.
Question 383
A company collects 10 GB of telemetry data daily from various machines. The company stores the data in an Amazon S3 bucket in a source data account.
The company has hired several consulting agencies to use this data for analysis. Each agency needs read access to the data for its analysts. The company must share the data from the source data account by choosing a solution that maximizes security and operational efficiency.
Which solution will meet these requirements?
A. Configure S3 global tables to replicate data for each agency.
B. Make the S3 bucket public for a limited time. Inform only the agencies.
C. Configure cross-account access for the S3 bucket to the accounts that the agencies own.
D. Set up an IAM user for each analyst in the source data account. Grant each user access to the S3 bucket.
Show Answer
Correct Answer: C
Explanation: Cross-account access to the S3 bucket is the AWS-recommended approach for sharing S3 data with other organizations' AWS accounts. It allows each agency to manage its own IAM users while the source account controls bucket access through bucket policies or IAM/resource policies. This is more secure and operationally efficient than creating IAM users for every external analyst. Option A is invalid because S3 has no global tables feature, B is insecure, and D creates unnecessary identity management overhead.
Question 384
A solutions architect is creating a data processing job that runs once daily and can take up to 2 hours to complete. If the job is interrupted, it has to restart from the beginning.
How should the solutions architect address this issue in the MOST cost-effective manner?
A. Create a script that runs locally on an Amazon EC2 Reserved Instance that is triggered by a cron job.
B. Create an AWS Lambda function triggered by an Amazon EventBridge scheduled event.
C. Use an Amazon Elastic Container Service (Amazon ECS) Fargate task triggered by an Amazon EventBridge scheduled event.
D. Use an Amazon Elastic Container Service (Amazon ECS) task running on Amazon EC2 triggered by an Amazon EventBridge scheduled event.
Show Answer
Correct Answer: C
Explanation: The job runs once per day, takes up to 2 hours, and must restart from the beginning if interrupted. AWS Lambda cannot run for 2 hours because its maximum execution time is 15 minutes. A Reserved Instance is not cost-effective for a workload that runs only 2 hours per day. Running ECS on EC2 requires maintaining EC2 capacity, making it less cost-effective than serverless Fargate for an infrequent scheduled task. An ECS Fargate task triggered by an EventBridge scheduled event runs only when needed and is billed only for the task's runtime.
Question 385
A company wants to migrate two DNS servers to AWS. The servers host a total of approximately 200 zones and receive 1 million requests each day on average. The company wants to maximize availability while minimizing the operational overhead that is related to the management of the two servers.
What should a solutions architect recommend to meet these requirements?
A. Create 200 new hosted zones in the Amazon Route 53 console Import zone files.
B. Launch a single large Amazon EC2 instance Import zone tiles. Configure Amazon CloudWatch alarms and notifications to alert the company about any downtime.
C. Migrate the servers to AWS by using AWS Server Migration Service (AWS SMS). Configure Amazon CloudWatch alarms and notifications to alert the company about any downtime.
D. Launch an Amazon EC2 instance in an Auto Scaling group across two Availability Zones. Import zone files. Set the desired capacity to 1 and the maximum capacity to 3 for the Auto Scaling group. Configure scaling alarms to scale based on CPU utilization.
Show Answer
Correct Answer: A
Explanation: Amazon Route 53 is a fully managed, highly available authoritative DNS service. Migrating the approximately 200 DNS zones into Route 53 hosted zones eliminates the need to manage DNS servers, maximizing availability while minimizing operational overhead. The EC2-based options still require server management, and AWS SMS migrates servers rather than replacing them with a managed DNS service.
Question 386
A company manages an application that stores data on an Amazon RDS for PostgreSQL Multi-AZ DB instance. Increases in traffic are causing performance problems. The company determines that database queries are the primary reason for the slow performance.
What should a solutions architect do to improve the application's performance?
A. Serve read traffic from the Multi-AZ standby replica.
B. Configure the DB instance to use Transfer Acceleration.
C. Create a read replica from the source DB instance. Serve read traffic from the read replica.
D. Use Amazon Kinesis Data Firehose between the application and Amazon RDS to increase the concurrency of database requests.
Show Answer
Correct Answer: C
Explanation: For Amazon RDS PostgreSQL Multi-AZ deployments, the standby instance is reserved for failover and cannot serve read traffic. To offload read-heavy query workloads and improve performance, create a read replica and direct read queries to it. Transfer Acceleration applies to Amazon S3, not RDS, and Kinesis Data Firehose is not used to increase RDS query performance.
Question 387
A company runs a production database on Amazon RDS for MySQL. The company wants to upgrade the database version for security compliance reasons. Because the database contains critical data, the company wants a quick solution to upgrade and test functionality without losing any data.
Which solution will meet these requirements with the LEAST operational overhead?
A. Create an RDS manual snapshot. Upgrade to the new version of Amazon RDS for MySQL.
B. Use native backup and restore. Restore the data to the upgraded new version of Amazon RDS for MySQL.
C. Use AWS Database Migration Service (AWS DMS) to replicate the data to the upgraded new version of Amazon RDS for MySQL.
D. Use Amazon RDS Blue/Green Deployments to deploy and test production changes.
Show Answer
Correct Answer: D
Explanation: Amazon RDS Blue/Green Deployments is designed specifically for low-risk database upgrades. It creates a synchronized staging (green) environment from production (blue), allows engine version upgrades and thorough testing without affecting production, and enables a managed switchover with typically minimal downtime. This provides the least operational overhead compared with manual snapshots, native backup/restore, or configuring AWS DMS replication.
Question 388
A global company runs its applications in multiple AWS accounts in AWS Organizations. The company's applications use multipart uploads to upload data to multiple Amazon S3 buckets across AWS Regions. The company wants to report on incomplete multipart uploads for cost compliance purposes.
Which solution will meet these requirements with the LEAST operational overhead?
A. Configure AWS Config with a rule to report the incomplete multipart upload object count.
B. Create a service control policy (SCP) to report the incomplete multipart upload object count.
C. Configure S3 Storage Lens to report the incomplete multipart upload object count.
D. Create an S3 Multi-Region Access Point to report the incomplete multipart upload object count.
Show Answer
Correct Answer: C
Explanation: Amazon S3 Storage Lens provides organization-wide visibility across AWS Organizations and Regions, including built-in metrics for incomplete multipart upload object count and storage bytes. It requires minimal operational overhead compared to custom rules or policies. AWS Config does not provide this metric, SCPs cannot generate such reports, and Multi-Region Access Points are for access routing, not analytics.
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