Cost-Optimized Architecture III

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Question 45

A social media company hosts multiple AWS Lambda functions that serve different microservices. The Amazon Gateway API invokes the Lambda functions. The Lambda functions save customer data to the Amazon Aurora SQL database. The company performs monthly upgrades to the database; during the upgrades, the Lambda function is enabled to connect to the database until the upgrades are complete. This results in the loss of important customer data.

As a solutions architect, provide the most cost-efficient solution to meet the requirements.

A. Configure an RDS proxy between AWS Lambda and Amazon Aurora SQL database and connect Lambda to the RDS Proxy service.

B. Configure an Amazon SQS queue to store the customer data and create a new Lambda function to poll from the queue and store it in the database.

C. Configure an Amazon SNS to store the customer data and create a new Lambda function to poll from the SNS and store it in the database.

D. Configure the Lambda function to store the data temporarily in the DynamoDB table and create a new Lambda function to transfer data from the DynamoDB table to the database.

Question 46

A company has high-performance computing (HPC) Linux servers on-premises for financial risk modeling. The tasks run by HPC servers are non-critical, short-lived, and generate thousands of files stored in persistent storage for a long time for future use. The company seeks to move the infrastructure to AWS Cloud.

Which solution will meet the requirements?

A. Use Linux-based EC2 Spot Instances. Use Amazon FSx for Lustre with Amzaon S3 integrated.

B. Use Linux-based EC2 Reserved Instances. Use Amazon FSx for Lustre with Amzaon S3 integrated.

C. Use Linux-based EC2 Spot Instances. Use Amazon FSx for Windows File Server integrated with Amazon S3.

D. Use Linux-based EC2 Spot Instances. Use Amazon Elastic File System (EFS) integrated with Amazon S3.

Question 47

A social media company needs to retain its application logs for 12 years. The team accesses and monitors the logs from the past month for troubleshooting and usage analysis purposes, but older logs are rarely accessed. The application generates more than 3 TB of logs per week.

As a solutions architect, provide the most cost-effective solution to meet the requirements.

A. Store logs in Amazon S3 and Use AWS Backup to move 1-month-older logs from S3 to S3 Glacier Instant Retrieval.

B. Use Amazon CloudWatch Logs to store the logs. Use AWS Backup to move 1-month-older logs from S3 to S3 Glacier Instant Retrieval.

C. Store logs in Amazon S3 and Use S3 Lifecycle policies to move 1-month-older logs from S3 to S3 Glacier Instant Retrieval.

D. Store logs in Amazon S3 and Use S3 lifecycle policies to move 1-month-older logs from S3 to S3 Glacier Deep Archive.

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