A company is developing an ecommerce application that uses Amazon API Gateway APIs. The application uses AWS Lambda as a backend. The company needs to test the code in a dedicated, monitored test environment before the company releases the code to the production environment.
When solution will meet these requirements?

1. A. Use a single stage in API Gatewa
2. B. Create a Lambda function for each environmen
3. C. Configure API clients to send a query parameter that indicates the endowment and the specific lambda function.
4. D. Use multiple stages in API Gatewa
5. E. Create a single Lambda function for all environment
6. F. Add different code blocks for different environments in the Lambda function based on Lambda environments variables.
7. G. Use multiple stages in API Gatewa
8. H. Create a Lambda function for each environmen
9. I. Configure API Gateway stage variables to route traffic to the Lambda function in different environments.
10. J. Use a single stage in API Gatewa
11. K. Configure a API client to send a query parameter that indicated the environmen
12. L. Add different code blocks tor afferent environments in the Lambda Junction to match the value of the query parameter.

Correct Answer: C
The solution that will meet the requirements is to use multiple stages in API Gateway. Create a Lambda function for each environment. Configure API Gateway stage variables to route traffic to the Lambda function in different environments. This way, the company can test the code in a dedicated, monitored test environment before releasing it to the production environment. The company can also use stage variables to specify the Lambda function version or alias for each stage, and avoid hard-coding the Lambda function name in the API Gateway integration. The other options either involve using a single stage in API Gateway, which does not allow testing in different environments, or adding different code blocks for different environments in the Lambda function, which increases complexity and maintenance.
Reference: Set up stage variables for a REST API in API Gateway

A developer needs to perform geographic load testing of an API. The developer must deploy resources to multiple AWS Regions to support the load testing of the API.
How can the developer meet these requirements without additional application code?

1. A. Create and deploy an AWS Lambda function in each desired Regio
2. B. Configure the Lambda function to create a stack from an AWS CloudFormation template in that Region when the function is invoked.
3. C. Create an AWS CloudFormation template that defines the load test resource
4. D. Use the AWS CLI create-stack-set command to create a stack set in the desired Regions.
5. E. Create an AWS Systems Manager document that defines the resource
6. F. Use the document to create the resources in the desired Regions.
7. G. Create an AWS CloudFormation template that defines the load test resource
8. H. Use the AWS CLI deploy command to create a stack from the template in each Region.

Correct Answer: B
AWS CloudFormation is a service that allows developers to model and provision AWS resources using templates. A CloudFormation template can define the load test resources, such as EC2 instances, load balancers, and Auto Scaling groups. A CloudFormation stack set is a collection of stacks that can be created and managed from a single template in multiple Regions and accounts. The AWS CLI create-stack-set command can be used to create a stack set from a template and specify the Regions where the stacks should be created. Reference: Working with AWS CloudFormation stack sets

A developer is creating an AWS CloudFormation template to deploy Amazon EC2 instances across multiple AWS accounts. The developer must choose the EC2 instances from a list of approved instance types.
How can the developer incorporate the list of approved instance types in the CloudFormation template?

1. A. Create a separate CloudFormation template for each EC2 instance type in the list.
2. B. In the Resources section of the CloudFormation template, create resources for each EC2 instance type in the list.
3. C. In the CloudFormation template, create a separate parameter for each EC2 instance type in the list.
4. D. In the CloudFormation template, create a parameter with the list of EC2 instance types as AllowedValues.

Correct Answer: D
In the CloudFormation template, the developer should create a parameter with the list of approved EC2 instance types as AllowedValues. This way, users can select the instance type they want to use when launching the CloudFormation stack, but only from the approved list.

A financial company must store original customer records for 10 years for legal reasons. A complete record contains personally identifiable information (PII). According to local regulations, PII is available to only certain people in the company and must not be shared with third parties. The company needs to make the records available to third-party organizations for statistical analysis without sharing the PII.
A developer wants to store the original immutable record in Amazon S3. Depending on who accesses the S3 document, the document should be returned as is or with all the PII removed. The developer has written an AWS Lambda function to remove the PII from the document. The function is named removePii.
What should the developer do so that the company can meet the PII requirements while maintaining only one copy of the document?

1. A. Set up an S3 event notification that invokes the removePii function when an S3 GET request is mad
2. B. Call Amazon S3 by using a GET request to access the object without PII.
3. C. Set up an S3 event notification that invokes the removePii function when an S3 PUT request is mad
4. D. Call Amazon S3 by using a PUT request to access the object without PII.
5. E. Create an S3 Object Lambda access point from the S3 consol
6. F. Select the removePii functio
7. G. Use S3 Access Points to access the object without PII.
8. H. Create an S3 access point from the S3 consol
9. I. Use the access point name to call the GetObjectLegalHold S3 API functio
10. J. Pass in the removePii function name to access the object without PII.

Correct Answer: C
S3 Object Lambda allows you to add your own code to process data retrieved from S3 before returning it to an application. You can use an AWS Lambda function to modify the data, such as removing PII, redacting confidential information, or resizing images. You can create an S3 Object Lambda access point and associate it with your Lambda function. Then, you can use the access point to request objects from S3 and get the modified data back. This way, you can maintain only one copy of the original
document in S3 and apply different transformations depending on who accesses it. Reference: Using AWS Lambda with Amazon S3

A developer wants to deploy a new version of an AWS Elastic Beanstalk application. During deployment the application must maintain full capacity and avoid service interruption. Additionally, the developer must minimize the cost of additional resources that support the deployment.
Which deployment method should the developer use to meet these requirements?

1. A. All at once
2. B. Rolling with additional batch
3. C. Bluegreen
4. D. Immutable

Correct Answer: B
This solution will meet the requirements by using a rolling with additional batch deployment method, which deploys the new version of the application to a separate group of instances and then shifts traffic to those instances in batches. This way, the application maintains full capacity and avoids service interruption during deployment, as well as minimizes the cost of additional resources that support the deployment. Option A is not optimal because it will use an all at once deployment method, which deploys the new version of the application to all instances simultaneously, which may cause service interruption or downtime during deployment. Option C is not optimal because it will use a blue/green deployment method, which deploys the new version of the application to a separate environment and then swaps URLs with the original environment, which may incur more costs for additional resources that support the deployment. Option D is not optimal because it will use an immutable deployment method, which deploys the new version of the application to a fresh group of instances and then redirects traffic to those instances, which may also incur more costs for additional resources that support the deployment.
References: AWS Elastic Beanstalk Deployment Policies