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The DVA-C02 Certification is valuable for developers who want to demonstrate their proficiency in AWS development and increase their job prospects. It can also help developers earn higher salaries and gain recognition as experts in the field. Overall, the DVA-C02 certification is an excellent opportunity for developers to validate their skills in AWS development and advance their careers.

Amazon DVA-C02 Exam Syllabus Topics:

Topic	Details
Topic 1	Development with AWS Services: In this topic, AWS developers gain expertise in writing and managing code for applications hosted on AWS, including leveraging AWS Lambda for serverless architectures. The focus also includes using data stores effectively in application development. The topic sharpens skills in cloud-native application development, aligning with the requirements of scalable, efficient systems.
Topic 2	Troubleshooting and Optimization:This topic prepares AWS developers to assist in root cause analysis, integrate observability into their code with instrumentation, and optimize applications using AWS services and features. Mastery of these skills ensures developers can maintain and enhance application performance and reliability efficiently.
Topic 3	Security: This topic empowers AWS developers to implement robust authentication and authorization mechanisms for applications and AWS services. It also highlights best practices in applying encryption using AWS tools and securely managing sensitive data within application code. Developers enhance their ability to create secure, compliant applications in the AWS ecosystem.
Topic 4	Deployment: AWS developers learn to prepare application artifacts for deployment, conduct rigorous testing in development environments, and automate deployment testing workflows. This topic also introduces the use of AWS CI CD services for efficient code deployment. The knowledge ensures effective application lifecycle management in production environments.

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Earning an AWS Certified Developer - Associate certification can help developers advance their careers and demonstrate their knowledge and skills to potential employers. It is a valuable credential that is increasingly in demand as more and more companies adopt cloud-based technologies. By passing the Amazon DVA-C02 Exam, developers can demonstrate their proficiency in developing and deploying applications on the AWS platform, and position themselves as leaders in the field of cloud computing.

Amazon AWS Certified Developer - Associate Sample Questions (Q247-Q252):

NEW QUESTION # 247
A developer is building a serverless application by using AWS Serverless Application Model (AWS SAM) on multiple AWS Lambda functions.
When the application is deployed, the developer wants to shift 10% of the traffic to the new deployment of the application for the first 10 minutes after deployment. If there are no issues, all traffic must switch over to the new version.
Which change to the AWS SAM template will meet these requirements?

A. Set the Deployment Preference Type to LinearlOPercentEvery10Minutes. Set AutoPubIishAIias property to the Lambda alias.
B. Set the Deployment Preference Type to CanaryIOPercentIOMinutes. Set the PreTraffic and PostTraffic properties to the Lambda alias.
C. Set the Deployment Preference Type to LinearlOPercentEveryIOMinutes. Set PreTraffic and Post Traffic properties to the Lambda alias.
D. Set the Deployment Preference Type to Canary10Percent10Minutes. Set the AutoPublishAlias property to the Lambda alias.

Answer: D

Explanation:
Explanation
The AWS Serverless Application Model (AWS SAM) comes built-in with CodeDeploy to provide gradual AWS Lambda deployments1. The DeploymentPreference property in AWS SAM allows you to specify the type of deployment that you want. The Canary10Percent10Minutes option means that 10 percent of your customer traffic is immediately shifted to your new version. After 10 minutes, all traffic is shifted to the new version1. The AutoPublishAlias property in AWS SAM allows AWS SAM to automatically create an alias that points to the updated version of the Lambda function1. Therefore, option A is correct.

NEW QUESTION # 248
A company is using Amazon API Gateway to develop an API for its application on AWS. A developer needs to test and generate API responses. Other teams are required to test the API immediately.
What should the developer do to meet these requirements?

A. Set up a request parameter-based Lambda authorizer to control access to the API. Configure the Lambda function with the necessary mapping template.
B. Set up a gateway response for the API in API Gateway. Configure response headers with hardcoded HTTP status codes and responses.
C. Set up a mock integration request in API Gateway. Configure the method's integration request and integration response to associate a response with a given status code.
D. Set up the request validators in the API's OpenAPI definition file. Import the OpenAPI definitions into API Gateway to test the API.

Answer: C

NEW QUESTION # 249
A company has an application that is based on Amazon EC2. The company provides API access to the application through Amazon API Gateway and uses Amazon DynamoDB to store the application's data. A developer is investigating performance issues that are affecting the application. During peak usage, the application is overwhelmed by a large number of identical data read requests that come through APIs. What is the MOST operationally efficient way for the developer to improve the application's performance?

A. Use Amazon ElastiCache to cache application responses.
B. Enable API Gateway caching to cache API responses.
C. Configure Amazon EC2 Auto Scaling policies to meet fluctuating demand.
D. Use DynamoDB Accelerator (DAX) to cache database responses.

Answer: D

Explanation:
DynamoDB Accelerator (DAX) provides a managed caching layer specifically optimized for DynamoDB, reducing latency for repeated read requests.
* Why Option A is Correct:
* Purpose-Built: DAX is designed for DynamoDB, enabling sub-millisecond response times for frequently accessed items.
* Operational Efficiency: No need for additional application-level caching logic.
* Why Not Other Options:
* Option B: Auto Scaling increases capacity but does not address repetitive reads.
* Option C: API Gateway caching helps reduce request processing time but does not optimize DynamoDB reads.
* Option D: ElastiCache is a general-purpose cache, adding unnecessary complexity for DynamoDB use cases.
References:
* DynamoDB Accelerator (DAX)

NEW QUESTION # 250
A developer is creating an application that uses an Amazon DynamoDB table. The developer needs to develop code that reads all records that were added to the table during the previous day. creates HTML reports, and pushes the reports into third-party storage. The item size varies from 1 KB to 4 KB, and the index structure is defined with the date. The developer needs to minimize the read capacity that the application requires from the DynamoDB table.
Which DynamoDB API operation should the developer use in the code to meet these requirements?

A. Scan
B. Getltem
C. Query
D. BatchGetltem

Answer: C

NEW QUESTION # 251
A developer is creating a microservices application that runs across multiple compute environments.
The application must securely access secrets that are stored in AWS Secrets Manager with minimal network latency. The developer wants a solution that reduces the number of direct calls to Secrets Manager and simplifies secrets management across environments. Which solution will meet these requirements with the LEAST operational overhead?

A. Create a custom script that retrieves secrets directly from Secrets Manager and caches the secrets in a local database for each compute environment.
B. Implement lazy loading logic in the application to fetch secrets directly from Secrets Manager and to cache the secrets in Redis.
C. Install the Secrets Manager Agent in each compute environment. Configure the agent to cache secrets locally. Securely retrieve the secrets from Secrets Manager as needed.
D. Store the secrets in an Amazon S3 bucket. Retrieve and load the secrets as environment variables during application startup for each compute environment.

Answer: C

Explanation:
The Secrets Manager Agent provides an out-of-the-box solution for securely caching secrets locally, reducing latency and operational overhead.
* Why Option B is Correct:
* Caching: The agent securely caches secrets locally, minimizing Secrets Manager API calls.
* Security: Secrets remain secure during retrieval and storage.
* Low Operational Overhead: Managed solution eliminates the need for custom logic.
* Why Not Other Options:
* Option A: Custom scripts introduce complexity and require ongoing maintenance.
* Option C: Using Redis requires managing an additional service, increasing overhead.
* Option D: Storing secrets in S3 lacks the fine-grained security controls of Secrets Manager.
References:
* Caching Secrets in AWS Secrets Manager

NEW QUESTION # 252
......

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Reliable DVA-C02 Test Vce | DVA-C02 Hot Questions

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Amazon DVA-C02 Exam Syllabus Topics:

DVA-C02 Hot Questions, DVA-C02 Valid Test Guide

Amazon AWS Certified Developer - Associate Sample Questions (Q247-Q252):

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