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| Certification Vendor: | Amazon Web Services (AWS) |
|---|---|
| Exam Name: | AWS Certified Developer - Associate |
| Exam Number: | DVA-C02 |
| Related Certifications: | AWS Certified Cloud Practitioner AWS Certified DevOps Engineer - Professional |
| Passing Score: | 720 (scaled score of 100โ1,000) |
| Exam Price: | 150 USD |
| Exam Duration: | 130 minutes |
| Certificate Validity Period: | 3 years |
| Exam Format: | Multiple response, Multiple choice |
| Available Languages: | English, Spanish (Latin America), Korean, Simplified Chinese, Japanese, Portuguese (Brazil) |
| Real Exam Qty: | 65 (50 scored, 15 unscored) |
| Sample Questions: | Amazon DVA-C02 Sample Questions |
| Exam Way: | Pearson VUE testing center or online proctored exam |
| Pre Condition: | Recommended 1 or more years of hands-on experience in developing and maintaining applications using AWS services. Proficiency in at least one high-level programming language. |
| Official Syllabus URL: | https://aws.amazon.com/certification/certified-developer-associate/ |
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To earn the DVA-C02 Certification, candidates must pass a 130-minute exam consisting of 65 multiple-choice and multiple-response questions. DVA-C02 exam is available in English, Japanese, Korean, and Simplified Chinese. AWS Certified Developer - Associate certification is valid for three years, after which candidates must recertify to maintain their credentials.
NEW QUESTION # 168
A developer is designing a serverless application with two AWS Lambda functions to process photos. One Lambda function stores objects in an Amazon S3 bucket and stores the associated metadata in an Amazon DynamoDB table. The other Lambda function fetches the objects from the S3 bucket by using the metadata from the DynamoDB table. Both Lambda functions use the same Python library to perform complex computations and are approaching the quota for the maximum size of zipped deployment packages.
What should the developer do to reduce the size of the Lambda deployment packages with the LEAST operational overhead?
Answer: A
Explanation:
AWS Lambda is a service that lets developers run code without provisioning or managing servers. Lambda layers are a distribution mechanism for libraries, custom runtimes, and other dependencies. The developer can create a Lambda layer with the required Python library and use the layer in both Lambda functions. This will reduce the size of the Lambda deployment packages and avoid reaching the quota for the maximum size of zipped deployment packages. The developer can also benefit from using layers to manage dependencies separately from function code.
NEW QUESTION # 169
A developer is building an application that will use an Amazon API Gateway API with an AWS Lambda backend. The team that will develop the frontend requires immediate access to the API endpoints to build the UI. To prepare the backend application for integration, the developer needs to set up endpoints. The endpoints need to return predefined HTTP status codes and JSON responses for the frontend team. The developer creates a method for an API resource.
Which solution will meet these requirements?
Answer: D
Explanation:
To give the frontend team immediate access to stable endpoints without waiting for a real backend implementation, the simplest approach is to use API Gateway MOCK integration. A MOCK integration lets API Gateway generate a response directly, without invoking Lambda or any other backend. This is ideal for early UI development because you can return consistent, predefined payloads and status codes for each method.
With MOCK integration, you configure an integration request (often using a static mapping template) to produce a dummy request payload that triggers a response, and then you configure integration responses to return specific HTTP status codes (such as 200, 400, 500) along with predefined JSON bodies. You can also set response headers (for example, Content-Type: application/json) and use mapping templates to shape the returned JSON. This satisfies the requirement to "return predefined HTTP status codes and JSON responses" while minimizing development effort and avoiding the need to deploy placeholder Lambda functions.
Option A (AWS_PROXY with Lambda) can work, but it requires creating and deploying Lambda functions and IAM permissions just to return static data-more effort than necessary. Option C (HTTP PROXY) depends on an external placeholder service, which adds another system to build and maintain. Option D is incorrect because HTTP status codes are not defined in the method request; they are defined through method responses and realized through integration responses in API Gateway's integration configuration.
Therefore, B is the best solution: MOCK integration with integration request/response mappings provides quick, code-free stubs that unblock frontend development.
NEW QUESTION # 170
A developer has a financial application. The application uses AWS Secrets Manager to manage an Amazon RDS for PostgreSQL database's username and password. The developer needs to rotate thepassword while maintaining the application's high availability. Which solution will meet these requirements with LEAST development effort?
Answer: D
Explanation:
Requirement Summary:
* Secrets managed inAWS Secrets Manager
* DB:Amazon RDS for PostgreSQL
* Needautomated password rotation
* Must maintainhigh availability
* Least development effort
Rotation Strategies:
#Single-user rotation strategy
* #Simplest to implement
* The secret containsone set of credentialsused by app and rotation logic
* #Supportsautomated rotation
* AWS providesbuilt-in Lambda rotation templatesfor RDS
A: Alternating-users strategy
* ##More complex
* Requires application toswitch usersduring rotation window
B: Manual secret + CLI rotation
* #Too much manual work
* Not scalable or reliable
C: Multivalue answer rotation
* #Not a valid strategy in this context
* Doesn't apply to Secrets Manager
* Secrets Manager rotation strategies:https://docs.aws.amazon.com/secretsmanager/latest/userguide
/rotating-secrets.html
* RDS PostgreSQL secret rotation:https://docs.aws.amazon.com/secretsmanager/latest/userguide/rotating- secrets_strategies.html#rotating-secrets-single-user
NEW QUESTION # 171
A developer is writing unit tests tor a new application that will be deployed on AWS. The developer wants to validate all pull requests with unit tests and merge the code with the main branch only when all tests pass The developer stores the code in AWS CodeCommit and sets up AWS CodeBuild to run the unit tests. The developer creates an AWS Lambda function to start the CodeBuild task. The developer needs to identify the CodeCommit events in an Amazon EventBridge event that can invoke the Lambda function when a pull request is created or updated.
Which CodeCommit event will meet these requirements?
Answer: B
Explanation:
https://aws.amazon.com/blogs/devops/automated-code-review-on-pull-requests-using-aws-codecommit-and- aws-codebuild/
NEW QUESTION # 172
A developer is responsible for the performance of an AWS Lambda function that was written in the latest version of .NET. The Lambda function processes data in an Amazon S3 bucket sporadically throughout each day. The Lambda function processing workload experiences cold start times of up to 10 seconds. Other workloads that are dependent on the function are latency sensitive and are negatively affected by the workload. The developer needs to improve the performance of the Lambda function. Which solution will meet this requirement?
Answer: D
Explanation:
Lambda SnapStart reduces cold-start latency by initializing the function when a version is published and caching an encrypted snapshot of the initialized execution environment.
Subsequent invocations restore from the snapshot, providing significantly faster startup for sporadically invoked .NET functions without continuously provisioned capacity.
NEW QUESTION # 173
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