精準的DVA-C02證照考試，最有效的考試題庫幫助妳快速通過DVA-C02考試

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DVA-C02證照考試, DVA-C02软件版, DVA-C02題庫, DVA-C02考古题推薦, DVA-C02測試

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Amazon DVA-C02 (AWS 認證開發人員 - 聯資) 認證考試旨在為想要展示他們在 Amazon Web Services (AWS) 平台上開發和維護應用程式的專業知識的個人提供考試。該考試適用於至少有一年使用 AWS 技術設計、開發和部署基於雲端的解決方案的開發人員。

獲得Amazon DVA-C02認證表明個人在AWS平台上開發和部署應用程序方面的專業知識。它還驗證個人有效地使用AWS服務設計和部署可擴展、可靠且具有成本效益的應用程序的能力。這種認證可以在雲計算行業中開啟各種工作機會，包括AWS開發人員、雲架構師和DevOps工程師等角色。

>> DVA-C02證照考試 <<

DVA-C02软件版 & DVA-C02題庫

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Amazon DVA-C02 (AWS Certified Developer - Associate) 考試是為開發人員設計的認證考試，旨在驗證他們在開發和維護 Amazon Web Services (AWS) 平台上的應用程式方面的能力。該考試測試候選人使用各種編程語言和 AWS 服務（如 AWS Lambda、Amazon S3、Amazon EC2 和 Amazon DynamoDB）在 AWS 上設計、開發、部署和維護可擴展、容錯和高可用的應用程式的能力。

最新的 AWS Certified Associate DVA-C02 免費考試真題 (Q668-Q673):

問題 #668
A company hosts the frontend of an application on Amazon EC2 instances in an Auto Scaling group behind an Application Load Balancer (ALB). The company configured the Auto Scaling group to scale based on CPU usage. The instances use an Amazon RDS database for persistent data storage.
The capacity of the EC2 instances is sufficient, and network latency is low. However, users report slow response times and delays in notifications during traffic surges.
The company needs to improve application performance. The company wants a solution that does not require advanced features or significant changes to the application architecture.
Which solution will meet these requirements with the LEAST configuration effort?

  • A. Use Amazon ElastiCache (Redis OSS) to cache frequently accessed data.
  • B. Migrate the database to Amazon DynamoDB. Create a DynamoDB Accelerator (DAX).
  • C. Use Amazon ElastiCache (Memcached) to cache frequently accessed data.
  • D. Implement dynamic scaling by using a target tracking scaling policy based on a predefined ALBRequestCountPerTarget metric type.

答案：C

解題說明：
Using Amazon ElastiCache with Memcached to cache frequently accessed data improves application response times during traffic surges with minimal changes and configuration effort.
Memcached is simple to deploy and integrate without requiring advanced features or architectural changes.


問題 #669
A company runs a batch processing application by using AWS Lambda functions and Amazon API Gateway APIs with deployment stages for development, user acceptance testing, and production. A development team needs to configure the APIs in the deployment stages to connect to third-party service endpoints.
Which solution will meet this requirement?

  • A. Store the third-party service endpoint for each environment in AWS AppConfig.
  • B. Store the third-party service endpoints in API Gateway stage variables that correspond to the stage.
  • C. Store the third-party service endpoints in Lambda layers that correspond to the stage.
  • D. Encode the third-party service endpoints as query parameters in the API Gateway request URL.

答案：B


問題 #670
When using the AWS Encryption SDK how does the developer keep track of the data encryption keys used to encrypt data?

  • A. The SDK stores the data encryption keys automaticity in Amazon S3.
  • B. The SDK encrypts me data encryption key and stores it (encrypted) as part of the resumed ophertext.
  • C. The developer must manually keep Hack of the data encryption keys used for each data object.
  • D. The data encryption key is stored m the user data for the EC2 instance.

答案：B

解題說明：
Explanation
This solution will meet the requirements by using AWS Encryption SDK, which is a client-side encryption library that enables developers to encrypt and decrypt data using data encryption keys that are protected by AWS Key Management Service (AWS KMS). The SDK encrypts the data encryption key with a customer master key (CMK) that is managed by AWS KMS, and stores it (encrypted) as part of the returned ciphertext.
The developer does not need to keep track of the data encryption keys used to encrypt data, as they are stored with the encrypted data and can be retrieved and decrypted by using AWS KMS when needed. Option A is not optimal because it will require manual tracking of the data encryption keys used for each data object, which is error-prone and inefficient. Option C is not optimal because it will store the data encryption keys automatically in Amazon S3, which is unnecessary and insecure as Amazon S3 is not designed for storing encryption keys.
Option D is not optimal because it will store the data encryption key in the user data for the EC2 instance, which is also unnecessary and insecure as user data is not encrypted by default.
References: [AWS Encryption SDK], [AWS Key Management Service]


問題 #671
A developer is writing an application that will provide data files to an external company. The external company needs to verify that the data is not modified in transit. How can the developer use AWS KMS to prove the integrity of the transferred data?

  • A. Sign the data by using the private key of an asymmetric key pair. Provide the public key to the external company.
  • B. Encrypt the data by using a symmetric key. Provide the key to the external company.
  • C. Sign the data by using a symmetric key. Provide the key to the external company.
  • D. Sign the data by using the public key of an asymmetric key pair. Provide the private key to the external company.

答案：A

解題說明：
AWS KMS supports digital signatures by using asymmetric key pairs. The application can sign the data with the private key, and the external company can use the corresponding public key to verify the signature. Successful verification proves that the data has not been modified in transit and that it originated from the expected source.


問題 #672
An application that runs on AWS Lambda requires access to specific highly confidential objects in an Amazon S3 bucket. In accordance with the principle of least privilege a company grants access to the S3 bucket by using only temporary credentials.
How can a developer configure access to me S3 bucket in the MOST secure way?

  • A. Create a secret access key and access key ID with permission to access the S3 bucket. Store the key and key ID in AWS Secrets Manager. Configure the application to retrieve the Secrets Manager secret and use the credentials to access me S3 objects.
  • B. Hardcode the credentials that are required to access the S3 objects in the application code. Use the credentials to access me required S3 objects.
  • C. Create a secret access key and access key ID with permission to access the S3 bucket Store the key and key ID as environment variables m Lambda. Use the environment variables to access the required S3 objects.
  • D. Create a Lambda function execution role Attach a policy to the rote that grants access to specific objects in the S3 bucket.

答案：D

解題說明：
Explanation
This solution will meet the requirements by creating a Lambda function execution role, which is an IAM role that grants permissions to a Lambda function to access AWS resources such as Amazon S3 objects. The developer can attach a policy to the role that grants access to specific objects in the S3 bucket that are required by the application, following the principle of least privilege. Option A is not optimal because it will hardcode the credentials that are required to access S3 objects in the application code, which is insecure and difficult to maintain. Option B is not optimal because it will create a secret access key and access key ID with permission to access the S3 bucket, which will introduce additional security risks and complexity for storing and managing credentials. Option D is not optimal because it will store the secret access key and access key ID as environment variables in Lambda, which is also insecure and difficult to maintain.
References: [AWS Lambda Execution Role], [Using AWS Lambda with Amazon S3]


問題 #673
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DVA-C02软件版: https://www.testpdf.net/DVA-C02.html

P.S. Testpdf在Google Drive上分享了免費的2026 Amazon DVA-C02考試題庫：https://drive.google.com/open?id=1LOE7KYac6VXvquXrM7I2LTDEARW4xtg-

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