Free Amazon SAA-C03 Exam Questions

Question 1

A company deployed a serverless application that uses Amazon DynamoDB as a database layer. The application has experienced a large increase in users. The company wants to improve database response time from milliseconds to microseconds and to cache requests to the database.

Which solution will meet these requirements with the LEAST operational overhead?

A : Use DynamoDB Accelerator (DAX).

B : Migrate the database to Amazon Redshift.

C : Migrate the database to Amazon RDS.

D : Use Amazon ElastiCache for Redis.

Answer: A

Question 2

A company runs an ecommerce platform with a monolithic architecture on Amazon EC2 instances. The platform runs web and API services. The company wants to decouple the architecture and enhance scalability. The company also wants the ability to track orders and reprocess any failed orders. Which solution will meet these requirements?

A : Send orders to an Amazon Simple Queue Service (Amazon SQS) queue. Configure AWS Lambda functions to consume the queue and process orders. Implement an SQS dead-letter queue.

B : Send orders to an Amazon Simple Queue Service (Amazon SQS) queue. Configure Amazon Elastic Container Service (Amazon ECS) tasks to consume the queue. Implement SQS visibility timeout.

C : Use Amazon Kinesis Data Streams to queue orders. Use AWS Lambda functions to consume the data stream. Configure Amazon S3 to track and reprocess failed orders.

D : Send orders to an Amazon Simple Queue Service (Amazon SQS) queue. Configure AWS Lambda functions to consume the queue and process orders. Configure the Lambda functions to use SQS long polling.

Answer: A

Question 3

A company is developing a microservices-based application to manage the company's delivery operations.The application consists of microservices that process orders, manage a fleet of delivery vehicles, andoptimize delivery routes.The microservices must be able to scale independently and must be able to handle bursts of traffic without anydata loss.Which solution will meet these requirements with the LEAST operational overhead?

A : Use Amazon API Gateway REST APIs to establish communication between microservices. Deploy the application on Amazon EC2 instances in Auto Scaling groups.

B : Use Amazon Simple Queue Service (Amazon SQS) to establish communication between microservices. Deploy the application on Amazon Elastic Container Service (Amazon ECS) containers on AWS Fargate.

C : Use WebSocket-based communication between microservices. Deploy the application on Amazon EC2 instances in Auto Scaling groups.

D : Use Amazon Simple Notification Service (Amazon SNS) to establish communication between microservices. Deploy the application on Amazon Elastic Container Service (Amazon ECS) containers on Amazon EC2 instances.

Answer: B

Question 4

A company is designing a new application that uploads files to an Amazon S3 bucket. The uploadedfiles are processed to extract metadata.Processing must take less than 5 seconds. The volume and frequency of the uploads vary from a fewfiles each hour to hundreds of concurrent uploads.Which solution will meet these requirements MOST cost-effectively?

A : Configure AWS CloudTrail trails to log Amazon S3 API calls. Use AWS AppSync to process the files.

B : Configure a new object created S3 event notification within the bucket to invoke an AWS Lambda function to process the files.

C : Configure Amazon Kinesis Data Streams to deliver the files to the S3 bucket. Invoke an AWS Lambda function to process the files.

D : Deploy an Amazon EC2 instance. Create a script that lists all files in the S3 bucket and processes new files. Use a cron job that runs every minute to run the script.

Answer: B

Question 5

A company runs a web application on Amazon EC2 instances in an Auto Scaling group that has a targetgroup. The company designed the application to work with session affinity (sticky sessions) for a better userexperience.The application must be available publicly over the internet as an endpoint. A WAF must be applied to theendpoint for additional security. Session affinity (sticky sessions) must be configured on the endpoint.

A : Create a public Network Load Balancer. Specify the application target group.

B : Create a Gateway Load Balancer. Specify the application target group

C : Create a public Application Load Balancer. Specify the application target group.

D : Create a second target group. Add Elastic IP addresses to the EC2 instances.

E : Create a web ACL in AWS WAF. Associate the web ACL with the endpoint.

Answer: C,E