AWS-Solution-Architect-Associate Free Practice Test

- (Exam Topic 3)
A company is running a batch application on Amazon EC2 instances. The application consists of a backend with multiple Amazon RDS databases. The application is causing a high number of leads on the databases. A solutions architect must reduce the number of database reads while ensuring high availability.
What should the solutions architect do to meet this requirement?

1. A. Add Amazon RDS read replicas
2. B. Use Amazon ElastCache for Redis
3. C. Use Amazon Route 53 DNS caching
4. D. Use Amazon ElastiCache for Memcached

Correct Answer: A

- (Exam Topic 3)
A company hosts rts sialic website by using Amazon S3 The company wants to add a contact form to its webpage The contact form will have dynamic server-sKle components for users to input their name, email address, phone number and user message The company anticipates that there will be fewer than 100 site visits each month
Which solution will meet these requirements MOST cost-effectively?

1. A. Host a dynamic contact form page in Amazon Elastic Container Service (Amazon ECS) Set up Amazon Simple Email Service (Amazon SES) to connect to any third-party email provider.
2. B. Create an Amazon API Gateway endpoinl with an AWS Lambda backend that makes a call to Amazon Simple Email Service (Amazon SES)
3. C. Convert the static webpage to dynamic by deploying Amazon Ughtsail Use client-side scnpting to build the contact form Integrate the form with Amazon WorkMail
4. D. Create a Q micro Amazon EC2 instance Deploy a LAMP (Linux Apache MySQ
5. E. PHP/Perl/Python) stack to host the webpage Use client-side scripting to buiW the contact form Integrate the form with Amazon WorkMail

Correct Answer: D
Create a t2 micro Amazon EC2 instance. Deploy a LAMP (Linux Apache MySQL, PHP/Perl/Python) stack to host the webpage. Use client-side scripting to build the contact form. Integrate the form with Amazon WorkMail. This solution will provide the company with the necessary components to host the contact form page and integrate it with Amazon WorkMail at the lowest cost. Option A requires the use of Amazon ECS, which is more expensive than EC2, and Option B requires the use of Amazon API Gateway, which is also more expensive than EC2. Option C requires the use of Amazon Lightsail, which is more expensive than EC2.
Using AWS Lambda with Amazon API Gateway - AWS Lambda https://docs.aws.amazon.com/lambda/latest/dg/services-apigateway.html AWS Lambda FAQs
https://aws.amazon.com/lambda/faqs/

- (Exam Topic 3)
A company is launching an application on AWS. The application uses an Application Load (ALB) to direct traffic to at least two Amazon EC2 instances in a single target group.
The instances are in an Auto Scaling group for each environment. The company requires a development and a production environment. The production environment will have periods of high traffic.
Which solution will configure the development environment MOST cost-effectively?

1. A. Reconfigure the target group in the development environment to have one EC2 instance as a target.
2. B. Change the ALB balancing algorithm to least outstanding requests.
3. C. Reduce the size of the EC2 instances in both environments.
4. D. Reduce the maximum number of EC2 instances in the development environment’s Auto Scaling group

Correct Answer: D
This option will configure the development environment in the most cost-effective way as it reduces the number of instances running in the development environment and therefore reduces the cost of running the application. The development environment typically requires less resources than the production environment, and it is unlikely that the development environment will have periods of high traffic that would require a large number of instances. By reducing the maximum number of instances in the development environment's Auto Scaling group, the company can save on costs while still maintaining a functional development environment.

- (Exam Topic 3)
A financial company hosts a web application on AWS. The application uses an Amazon API Gateway Regional API endpoint to give users the ability to retrieve current stock prices. The company's security team has noticed an increase in the number of API requests. The security team is concerned that HTTP flood attacks might take the application offline.
A solutions architect must design a solution to protect the application from this type of attack. Which solution meats these requirements with the LEAST operational overhead?

1. A. Create an Amazon CloudFront distribution in front of the API Gateway Regional API endpoint with a maximum TTL of 24 hours
2. B. Create a Regional AWS WAF web ACL with a rate-based rul
3. C. Associate the web ACL with the API Gateway stage.
4. D. Use Amazon CloudWatch metrics to monitor the Count metric and alert the security team when the predefined rate is reached
5. E. Create an Amazon CloudFront distribution with Lambda@Edge in front of the API Gateway Regional API endpoint Create an AWS Lambda function to block requests from IP addresses that exceed the predefined rate.

Correct Answer: B

- (Exam Topic 3)
A company recently deployed a new auditing system to centralize information about operating system versions patching and installed software for Amazon EC2 instances. A solutions architect must ensure all instances provisioned through EC2 Auto Scaling groups successfully send reports to the auditing system as soon as they are launched and terminated
Which solution achieves these goals MOST efficiently?

1. A. Use a scheduled AWS Lambda function and run a script remotely on all EC2 instances to send data to the audit system.
2. B. Use EC2 Auto Scaling lifecycle hooks to run a custom script to send data to the audit system when instances are launched and terminated
3. C. Use an EC2 Auto Scaling launch configuration to run a custom script through user data to send data to the audit system when instances are launched and terminated
4. D. Run a custom script on the instance operating system to send data to the audit system Configure the script to be invoked by the EC2 Auto Scaling group when the instance starts and is terminated

Correct Answer: B