[Update May 2021]: 25 new questions have been added based on exam feedback from students
[2021 年 5 月更新]：根据学生的考试反馈添加了 25 个新问题

[Update Aug 2020]: All questions have been re-written, detailed explanations added, and new questions added based on exam updates
[2020 年 8 月更新]：所有问题都已重写，添加了详细说明，并根据考试更新添加了新问题

[Update July 2019]: 33 Bonus Questions have been added. They’re based on newer topics students had at the exam!
[2019 年 7 月更新]：添加了 33 个奖励问题。它们基于学生在考试中遇到的新主题！

[Update Apr 2019]: ALL AWS Certified Developer practice exams are now using scenario-based questions, just like the real exam!
[2019 年 4 月更新]：所有 AWS Certified Developer 模拟考试现在都使用基于场景的问题，就像真正的考试一样！

[Update Feb 2019]: Added detailed explanations on why answers are correct / incorrect + ECS questions on each quiz
[2019 年 2 月更新]：添加了关于为什么答案正确/不正确的详细说明 + 每个测验的 ECS 问题

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Preparing for AWS Certified Developer Architect Associate DVA-C02? This is THE practice exams course to give you the winning edge.
正在准备 AWS Certified Developer Architect Associate DVA-C02？这是练习考试课程，为您提供制胜优势。

These practice exams have been co-authored by Stephane Maarek and Abhishek Singh who bring their collective experience of passing 18 AWS Certifications to the table.
这些模拟考试由 Stephane Maarek 和 Abhishek Singh 共同撰写，他们带来了他们通过 18 项 AWS 认证的集体经验。

The tone and tenor of the questions mimic the real exam. Along with the detailed description and “exam alert” provided within the explanations, we have also extensively referenced AWS documentation to get you up to speed on all domain areas being tested for the DVA-C02 exam.
问题的语气和基调模仿了真实的考试。除了说明中提供的详细说明和“考试提醒”外，我们还广泛引用了 AWS 文档，让您快速了解 DVA-C02 考试正在测试的所有领域。

We want you to think of this course as the final pit-stop so that you can cross the winning line with absolute confidence and get AWS Certified! Trust our process, you are in good hands.
我们希望您将本课程视为最后的进站，以便您可以绝对自信地越过获胜线并获得 AWS 认证！相信我们的流程，您将得到很好的照顾。

All questions have been written from scratch! And more questions are being added over time! You can see for yourself some of the amazing testimonials from our students who have aced the real exam:
所有问题都是从头开始写的！随着时间的流逝，还会添加更多问题！您可以亲眼看到我们学生在真实考试中取得优异成绩的一些惊人推荐：

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FEATURED REVIEWS: 特色评论：

5 stars: These exams should definitely be a part of everyone’s study material, they were extremely helpful and packed with information. I got a 43% on the first exam before taking his course, then after taking the course I got 76, 78, 84, 89, 86 on all 5 tests, and was able to pass with a 959/1000 on the real exam
5 星：这些考试绝对应该成为每个人学习材料的一部分，它们非常有帮助并且信息丰富。在参加他的课程之前，我在第一次考试中获得了 43%，然后在参加课程后，我在所有 76 次考试中获得了 76、78、84、89、86 分，并且能够在真正的考试中以 959/1000 的成绩通过考试

5 stars: I recommend you take this practice exam with Stephane’s hands-on course. For your reference, I passed a real exam over 900 points.
5 星：我建议您参加 Stephane 的实践课程的练习考试。供您参考，我通过了超过 900 分的真实考试。

5 stars: Passed with 914 on the exam. This is exam was very good in comparison to the real exam
5 星：考试以 914 分通过。与真正的考试相比，这是非常好的考试

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Quality speaks for itself…
质量不言而喻……

SAMPLE QUESTION: 示例问题：

You have migrated an on-premise SQL Server database to an Amazon Relational Database Service (RDS) database attached to a VPC inside a private subnet. Also, the related Java application, hosted on-premise, has been moved to an Amazon Lambda function.
您已将本地 SQL Server 数据库迁移到附加到私有子网内 VPC 的 Amazon Relational Database Service （RDS） 数据库。此外，本地托管的相关 Java 应用程序已移至 Amazon Lambda 函数。

Which of the following should you implement to connect AWS Lambda function to its RDS instance?
为了将 AWS Lambda 函数连接到其 RDS 实例，您应实施以下哪项？

1. Use Lambda layers to connect to the internet and RDS separately
   使用 Lambda 层分别连接到 Internet 和 RDS

2. Configure lambda to connect to the public subnet that will give internet access and use Security Group to access RDS inside the private subnet
   配置 lambda 以连接到将提供 Internet 访问权限的公有子网，并使用安全组访问私有子网内的 RDS

3. Use Environment variables to pass in the RDS connection string
   使用环境变量传入 RDS 连接字符串

4. Configure Lambda to connect to VPC with private subnet and Security Group needed to access RDS
   将 Lambda 配置为使用访问 RDS 所需的私有子网和安全组连接到 VPC

What’s your guess? Scroll below for the answer…
你的猜测是什么？滚动下方查看答案…

Correct: 4. 正确：4。

CORRECT OPTION 正确的选项

Configure Lambda to connect to VPC with private subnet and Security Group needed to access RDS – You can configure a Lambda function to connect to private subnets in a virtual private cloud (VPC) in your account. Use Amazon Virtual Private Cloud (Amazon VPC) to create a private network for resources such as databases, cache instances, or internal services. Connect your lambda function to the VPC to access private resources during execution. When you connect a function to a VPC, Lambda creates an elastic network interface for each combination of the security group and subnet in your function’s VPC configuration. This is the right way of giving RDS access to Lambda.
将 Lambda 配置为使用访问 RDS 所需的私有子网和安全组连接到 VPC – 您可以配置 Lambda 函数以连接到您账户中 Virtual Private Cloud （VPC） 中的私有子网。使用 Amazon Virtual Private Cloud （Amazon VPC） 为数据库、缓存实例或内部服务等资源创建私有网络。将您的 lambda 函数连接到 VPC，以便在执行期间访问私有资源。当您将函数连接到 VPC 时，Lambda 会为函数的 VPC 配置中的安全组和子网的每个组合创建一个弹性网络接口。这是向 RDS 授予对 Lambda 的访问权限的正确方法。

INCORRECT OPTIONS 选项不正确

Use Lambda layers to connect to the internet and RDS separately – You can configure your Lambda function to pull in additional code and content in the form of layers. A layer is a ZIP archive that contains libraries, a custom runtime, or other dependencies. Layers will not help in configuring access to RDS instance and hence is an incorrect choice.
使用 Lambda 层分别连接到 Internet 和 RDS – 您可以配置 Lambda 函数以层的形式拉取其他代码和内容。图层是包含库、自定义运行时或其他依赖项的 ZIP 存档。层无助于配置对 RDS 实例的访问，因此是一个不正确的选择。

Configure lambda to connect to the public subnet that will give internet access and use the Security Group to access RDS inside the private subnet – This is an incorrect statement. Connecting a Lambda function to a public subnet does not give it internet access or a public IP address. To grant internet access to your function, its associated VPC must have a NAT gateway (or NAT instance) in a public subnet.
配置 lambda 以连接到将提供 Internet 访问权限的公有子网，并使用安全组访问私有子网内的 RDS – 这是一个不正确的陈述。将 Lambda 函数连接到公有子网不会为其提供 Internet 访问权限或公有 IP 地址。要授予对您的函数的 Internet 访问权限，其关联的 VPC 必须在公有子网中具有 NAT 网关（或 NAT 实例）。

Use Environment variables to pass in the RDS connection string – You can use environment variables to store secrets securely and adjust your function’s behavior without updating code. You can use environment variables to exchange data with RDS, but you will still need access to RDS, which is not possible with just environment variables.
使用环境变量传入 RDS 连接字符串 – 可以使用环境变量安全地存储机密并调整函数的行为，而无需更新代码。您可以使用环境变量与 RDS 交换数据，但您仍然需要访问 RDS，而仅使用环境变量无法做到这一点。

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Instructor 教练

My name is Stéphane Maarek, I am passionate about Cloud Computing, and I will be your instructor in this course. I teach about AWS certifications, focusing on helping my students improve their professional proficiencies in AWS.
我叫 Stéphane Maarek，我对云计算充满热情，我将担任本课程的讲师。我教授 AWS 认证，专注于帮助我的学生提高他们在 AWS 方面的专业能力。

I have already taught 1,500,000+ students and gotten 500,000+ reviews throughout my career in designing and delivering these certifications and courses!
在我的职业生涯中，我已经教过 1,500,000+ 名学生，并在设计和提供这些认证和课程方面获得了 500,000+ 条评论！

I’m delighted to welcome Abhishek Singh as my co-instructor for these practice exams!
我很高兴欢迎 Abhishek Singh 成为我这些练习考试的联合讲师！

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Welcome to the best practice exams to help you prepare for your AWS Certified Developer Architect Associate exam.
欢迎参加最佳实践考试，以帮助您准备 AWS Certified Developer Architect Associate 考试。

• You can retake the exams as many times as you want
  您可以根据需要多次重新参加考试

• This is a huge original question bank
  这是一个巨大的原创题库

• You get support from instructors if you have questions
  如果您有任何疑问，您可以获得讲师的支持

• Each question has a detailed explanation
  每个问题都有详细的解释

• Mobile-compatible with the Udemy app
  与 Udemy 应用程序兼容

• 30-days money-back guarantee if you’re not satisfied
  如果您不满意，30 天退款保证

We hope that by now you’re convinced!… And there are a lot more questions inside the course.
我们希望您现在已经确信了…课程中还有很多问题。

Happy learning and best of luck for your AWS Certified Developer Associate exam!
祝您学习愉快，祝您的 AWS Certified Developer Associate 考试好运！