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Amazon DVA-C02 Exam Syllabus Topics:

Section	Weight	Objectives
Development with AWS Services	32%	- Develop code for AWS serverless applications 1. Amazon EventBridge 2. AWS AppSync 3. Amazon API Gateway 4. AWS Step Functions - Use data stores in application development 1. Amazon RDS 2. Amazon ElastiCache 3. Amazon S3 4. Amazon DynamoDB 5. Amazon EFS - Develop code for applications hosted on AWS 1. AWS Lambda 2. AWS CloudFormation 3. Amazon S3 4. AWS SDKs 5. Amazon SQS 6. Amazon API Gateway 7. Amazon DynamoDB 8. AWS CLI 9. Amazon SNS 10. Amazon Cognito
Troubleshooting and Optimization	18%	- Optimize applications by using AWS services and features 1. Cost optimization 2. Memory and compute optimization 3. Data storage optimization 4. Caching strategies (ElastiCache, CloudFront) 5. Concurrency and throttling - Assist in a root cause analysis 1. Error handling and retries 2. Application logging 3. AWS CloudTrail 4. AWS X-Ray 5. Amazon CloudWatch Logs - Instrument code for observability 1. Amazon CloudWatch metrics 2. Amazon CloudWatch alarms 3. Structured logging 4. AWS X-Ray 5. Custom metrics
Security	26%	- Implement encryption by using AWS services 1. AWS KMS 2. AWS Secrets Manager 3. AWS Certificate Manager 4. Amazon S3 encryption 5. AWS CloudHSM - Manage sensitive data in application code 1. Environment variables 2. Encryption of data at rest and in transit 3. AWS Systems Manager Parameter Store 4. AWS Secrets Manager - Implement authentication and/or authorization for applications and AWS services 1. Role-based access control (RBAC) 2. Identity federation (SAML, OpenID Connect, Amazon Cognito) 3. Resource-based policies, service policies, and principal policies 4. User pools and identity pools in Amazon Cognito 5. Bearer tokens (JWT, OAuth, AWS STS)
Deployment	24%	- Prepare application artifacts to be deployed to AWS 1. AWS CloudFormation 2. AWS SAM 3. AWS CDK 4. Lambda deployment packages 5. Docker containers - Test applications in development environments 1. AWS SAM local 2. Local testing of Lambda functions 3. Mocking AWS services - Deploy code by using AWS CI/CD services 1. AWS CodeBuild 2. GitHub integration 3. AWS CodeDeploy 4. AWS CodeCommit 5. Blue/green deployments 6. Canary deployments 7. AWS CodePipeline 8. Rolling deployments - Automate deployment testing 1. AWS CodeBuild 2. AWS CodeDeploy 3. AWS CodeCommit 4. AWS CodePipeline

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Amazon AWS Certified Developer - Associate Sample Questions (Q548-Q553):

NEW QUESTION # 548
A developer is updating an Amazon API Gateway REST API to have a mock endpoint. The developer wants to update the integration request mapping template so the endpoint will respond to mock integration requests with specific HTTP status codes based on various conditions.
Which statement will meet these requirements?

Answer: A

NEW QUESTION # 549
A developer is creating a publicly accessible enterprise website consisting of only static assets.
The developer is hosting the website in Amazon S3 and serving the website to users through an Amazon CloudFront distribution. The users of this application must not be able to access the application content directly from an S3 bucket. All content must be served through the Amazon CloudFront distribution.
Which solution will meet these requirements?

A. Create a new origin access control (OAC) in CloudFront. Configure the CloudFront distribution's origin to use the new OAC. Update the S3 bucket policy to allow CloudFront OAC with read and write access to access Amazon S3 as the origin.
B. Update the S3 bucket settings. Enable the block all public access setting in Amazon S3.
Configure the CloudFront distribution's with Amazon S3 as the origin. Update the S3 bucket policy to allow CloudFront write access.
C. Update the CloudFront distribution's origin to send a custom header. Update the S3 bucket policy with a condition by using the aws:RequestTag/tag-key key. Configure the tag-key as the custom header name, and the value being matched is the header's value.
D. Update the S3 bucket's static website settings. Enable static website hosting and specifying index and error documents. Update the CloudFront origin to use the S3 bucket's website endpoint.

Answer: D

NEW QUESTION # 550
A company wants to make sure that only one user from its Admin group has the permanent right to delete an Amazon EC2 resource. There should be no changes in the existing policy under the Admin group. What should a developer use to meet these requirements?

A. Inline policy
B. AWS STS
C. IAM trust relationship
D. AWS managed policy

Answer: A

Explanation:
An inline policy can be attached directly to a specific IAM user, granting that individual exclusive permissions without modifying the existing Admin group policy. This ensures only that one user has the permanent right to delete the EC2 resource while keeping the group policy unchanged.

NEW QUESTION # 551
A company is developing an application that will be accessed through the Amazon API Gateway REST API. Registered users should be the only ones who can access certain resources of this API. The token being used should expire automatically and needs to be refreshed periodically.
How can a developer meet these requirements?

A. Create an Amazon Cognito user pool, configure the Cognito Authorizer in API Gateway, and use the identity or access token.
B. Create an Amazon Cognito identity pool, configure the Amazon Cognito Authorizer in API Gateway, and use the temporary credentials generated by the identity pool.
C. Create and maintain a database record for each user with a corresponding token and use an AWS Lambda authorizer in API Gateway.
D. Create an 1AM user for each API user, attach an invoke permissions policy to the API. and use an I AM authorizer in API Gateway.

Answer: A

NEW QUESTION # 552
A developer is building an application that stores sensitive user data. The application includes an Amazon CloudFront distribution and multiple AWS Lambda functions that handle user requests.
The user requests contain over 20 data fields. Each application transaction contains sensitive data that must be encrypted. Only specific parts of the application need to have the ability to decrypt the data.
Which solution will meet these requirements?

A. Configure the cache behavior in the CloudFront distribution to require HTTPS for communication between viewers and CloudFront. Configure GoudFront to require users to access the files by using either signed URLs or signed cookies.
B. Integrate AWS WAF with CloudFront to protect the sensitive data. Use a Lambda function and self-managed keys to perform the encryption and decryption processes.
C. Associate the CloudFront distribution with a Lambda@Edge function. Configure the function to perform field-level asymmetric encryption by using a user-defined RSA public key that is stored in AWS Key Management Service (AWS KMS).
D. Configure the CloudFront distribution to use WebSockets by forwarding all viewer request headers to the origin. Create an asymmetric AWS KMS key. Configure the CloudFront distribution to use field-level encryption. Use the AWS KMS key.

Answer: D

Explanation:
CloudFront supports field-level encryption, which allows you to encrypt specific parts of the request data (such as sensitive user data fields) before it is sent to the origin. By configuring CloudFront to use field-level encryption and integrating it with AWS KMS, you can securely encrypt sensitive data using KMS-managed keys and ensure that only specific parts of your application (such as your origin or Lambda functions) can decrypt the data. This solution is designed for handling sensitive data in a way that provides both security and flexibility, with KMS providing secure key management and encryption.

NEW QUESTION # 553
......

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