SAA-C03 Free Practice Test

- (Exam Topic 2)
An ecommerce company has an order-processing application that uses Amazon API Gateway and an AWS Lambda function. The application stores data in an Amazon Aurora PostgreSQL database. During a recent sales event, a sudden surge in customer orders occurred. Some customers experienced timeouts and the application did not process the orders of those customers A solutions architect determined that the CPU utilization and memory utilization were high on the database because of a large number of open connections The solutions architect needs to prevent the timeout errors while making the least possible changes to the application.
Which solution will meet these requirements?

1. A. Configure provisioned concurrency for the Lambda function Modify the database to be a global database in multiple AWS Regions
2. B. Use Amazon RDS Proxy to create a proxy for the database Modify the Lambda function to use the RDS Proxy endpoint instead of the database endpoint
3. C. Create a read replica for the database in a different AWS Region Use query string parameters in API Gateway to route traffic to the read replica
4. D. Migrate the data from Aurora PostgreSQL to Amazon DynamoDB by using AWS Database Migration Service (AWS DMS| Modify the Lambda function to use the OynamoDB table

Correct Answer: D

- (Exam Topic 2)
Organizers for a global event want to put daily reports online as static HTML pages. The pages are expected to generate millions of views from users around the world. The files are stored In an Amazon S3 bucket. A solutions architect has been asked to design an efficient and effective solution.
Which action should the solutions architect take to accomplish this?

1. A. Generate presigned URLs for the files.
2. B. Use cross-Region replication to all Regions.
3. C. Use the geoproximtty feature of Amazon Route 53.
4. D. Use Amazon CloudFront with the S3 bucket as its origin.

Correct Answer: D

- (Exam Topic 3)
An ecommerce company is building a distributed application that involves several serverless functions and AWS services to complete order-processing tasks. These tasks require manual approvals as part of the workflow A solutions architect needs to design an architecture for the order-processing application The solution must be able to combine multiple AWS Lambda functions into responsive serverless applications The solution also must orchestrate data and services that run on Amazon EC2 instances, containers, or on-premises servers
Which solution will meet these requirements with the LEAST operational overhead?

1. A. Use AWS Step Functions to build the application.
2. B. Integrate all the application components in an AWS Glue job
3. C. Use Amazon Simple Queue Service (Amazon SQS) to build the application
4. D. Use AWS Lambda functions and Amazon EventBridge (Amazon CloudWatch Events) events to build the application

Correct Answer: D

- (Exam Topic 2)
A gaming company is designing a highly available architecture. The application runs on a modified Linux kernel and supports only UDP-based traffic. The company needs the front-end tier to provide the best possible user experience. That tier must have low latency, route traffic to the nearest edge location, and provide static IP addresses for entry into the application endpoints.
What should a solutions architect do to meet these requirements?

1. A. Configure Amazon Route 53 to forward requests to an Application Load Balance
2. B. Use AWS Lambda for the application in AWS Application Auto Scaling.
3. C. Configure Amazon CloudFront to forward requests to a Network Load Balance
4. D. Use AWS Lambda for the application in an AWS Application Auto Scaling group.
5. E. Configure AWS Global Accelerator to forward requests to a Network Load Balance
6. F. Use Amazon EC2 instances for the application in an EC2 Auto Scaling group.
7. G. Configure Amazon API Gateway to forward requests to an Application Load Balance
8. H. Use AmazonEC2 instances for the application in an EC2 Auto Scaling group.

Correct Answer: C

- (Exam Topic 2)
A company runs an Oracle database on premises. As part of the company’s migration to AWS, the company wants to upgrade the database to the most recent available version. The company also wants to set up disaster recovery (DR) for the database. The company needs to minimize the operational overhead for normal operations and DR setup. The company also needs to maintain access to the database's underlying operating system.
Which solution will meet these requirements?

1. A. Migrate the Oracle database to an Amazon EC2 instanc
2. B. Set up database replication to a different AWS Region.
3. C. Migrate the Oracle database to Amazon RDS for Oracl
4. D. Activate Cross-Region automated backups to replicate the snapshots to another AWS Region.
5. E. Migrate the Oracle database to Amazon RDS Custom for Oracl
6. F. Create a read replica for the database in another AWS Region.
7. G. Migrate the Oracle database to Amazon RDS for Oracl
8. H. Create a standby database in another Availability Zone.

Correct Answer: C
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/rds-custom.html and https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/working-with-custom-oracle.html