RELIABLE DVA-C02 TEST SAMPLE & EXAM DVA-C02 DUMPS

Reliable DVA-C02 Test Sample & Exam DVA-C02 Dumps

Reliable DVA-C02 Test Sample & Exam DVA-C02 Dumps

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Amazon DVA-C02 (AWS Certified Developer - Associate) certification exam is designed to validate the skills and knowledge of individuals who have experience in developing and maintaining applications on the AWS platform. AWS Certified Developer - Associate certification is ideal for developers who want to demonstrate their ability to design, deploy, and maintain scalable and reliable applications on AWS. DVA-C02 Exam covers a range of topics, including AWS core services, application development, and security best practices.

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Passing the Amazon DVA-C02 Exam is a great way for software developers to demonstrate their expertise in developing applications on the AWS platform. AWS Certified Developer - Associate certification can open up many career opportunities in the field of cloud computing, as more and more companies are moving their applications to the cloud. It can also help developers increase their earning potential, as AWS Certified Developers - Associates are in high demand and can command higher salaries than their non-certified peers.

Amazon AWS Certified Developer - Associate Sample Questions (Q25-Q30):

NEW QUESTION # 25
A developer is creating an AWS CloudFormation stack. The stack contains IAM resources with custom names. When the developer tries to deploy the stack, they receive an InsufficientCapabilities error.
What should the developer do to resolve this issue?

  • A. Use an administrators role to deploy IAM resources with CloudFormation.
  • B. Specify the CAPABILITY_AUTO_EXPAND capability in the CloudFormation stack.
  • C. Specify the CAPABILITY_NAMED_IAM capability in the CloudFormation stack.
  • D. Specify the CAPABILITY_IAM capability in the CloudFormation stack.

Answer: C

Explanation:
If you have IAM resources with custom names, you must specify CAPABILITY_NAMED_IAM.
https://docs.aws.amazon.com/AWSCloudFormation/latest/APIReference/API_CreateStack.html


NEW QUESTION # 26
A developer is building an ecommerce application that uses multiple AWS Lambda functions. Each function performs a specific step in a customer order workflow, such as order processing and inventory management.
The developer must ensure that the Lambda functions run in a specific order.
Which solution will meet this requirement with the LEAST operational overhead?

  • A. Configure Amazon EventBridge Scheduler schedules to invoke the Lambda functions in a specific order.
  • B. Configure an Amazon Simple Queue Service (Amazon SQS) queue to contain messages about each step a function must perform. Configure the Lambda functions to run sequentially based on the order of messages in the SQS queue.
  • C. Configure an AWS Step Functions state machine to invoke the Lambda functions in a specific order.
  • D. Configure an Amazon Simple Notification Service (Amazon SNS) topic to contain notifications about each step a function must perform. Subscribe the Lambda functions to the SNS topic. Use subscription filters based on the step each function must perform.

Answer: C

Explanation:
The requirement here is to ensure that Lambda functions are executed in a specific order. AWS Step Functions is a low-code workflow orchestration service that enables you to sequence AWS services, such as AWS Lambda, into workflows. It is purpose-built for situations like this, where different steps need to be executed in a strict sequence.
* AWS Step Functions: Step Functions allows developers to design workflows as state machines, where each state corresponds to a particular function. In this case, the developer can create a Step Functions state machine where each step (order processing, inventory management, etc.) is represented by a Lambda function.
* Operational Overhead: Step Functions have very low operational overhead because it natively handles retries, error handling, and function sequencing.
* Alternatives:
* Amazon SQS (Option A): While SQS can manage message ordering, it requires more manual handling of each step and the logic to sequentially invoke the Lambda functions.
* Amazon SNS (Option B): SNS is a pub/sub service and is not designed to handle sequences of Lambda executions.
* EventBridge (Option D): EventBridge Scheduler allows you to invoke Lambda functions based on scheduled times, but it doesn't directly support sequencing based on workflow logic.
Therefore, AWS Step Functions is the most appropriate solution due to its native orchestration capabilities and minimal operational complexity.


NEW QUESTION # 27
A developer wants to insert a record into an Amazon DynamoDB table as soon as a new file is added to an Amazon S3 bucket.
Which set of steps would be necessary to achieve this?

  • A. Create an AWS Lambda function that will poll the S3 bucket and then insert the records into DynamoDB.
  • B. Configure an S3 event to invoke an AWS Lambda function that inserts records into DynamoDB.
  • C. Create an event with Amazon EventBridge that will monitor the S3 bucket and then insert the records into DynamoDB.
  • D. Create a cron job that will run at a scheduled time and insert the records into DynamoDB.

Answer: B

Explanation:
Amazon S3 is a service that provides highly scalable, durable, and secure object storage. Amazon DynamoDB is a fully managed NoSQL database service that provides fast and consistent performance with seamless scalability. AWS Lambda is a service that lets developers run code without provisioning or managing servers.
The developer can configure an S3 event to invoke a Lambda function that inserts records into DynamoDB whenever a new file is added to the S3 bucket. This solution will meet the requirement of inserting a record into DynamoDB as soon as a new file is added to S3.
References:
* [Amazon Simple Storage Service (S3)]
* [Amazon DynamoDB]
* [What Is AWS Lambda? - AWS Lambda]
* [Using AWS Lambda with Amazon S3 - AWS Lambda]


NEW QUESTION # 28
A Developer has been asked to make changes to the source code of an AWS Lambda function.
The function is managed using an AWS CloudFormation template. The template is configured to load the source code from an Amazon S3 bucket. The Developer manually created a .ZIP file deployment package containing the changes and put the file into the correct location on Amazon S3. When the function is invoked, the code changes have not been applied.
What step is required to update the function with the changes?

  • A. Delete the .ZIP file on S3, and re-upload by using a different object key name.
  • B. Update the CloudFormation stack with the correct values for the function code properties S3Bucket, S3Key, or S3ObjectVersion.
  • C. Modify the execution role of the Lambda function to allow S3 access permission to the deployment package .ZIP file.
  • D. Ensure that the function source code is base64-encoded before uploading the deployment package to S3.

Answer: B

Explanation:
Changes to a deployment package in Amazon S3 are not detected automatically during stack updates. To update the function code, change the object key or version in the template.
https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-lambda- function-code.html


NEW QUESTION # 29
A company has a serverless application on AWS that uses a fleet of AWS Lambda functions that have aliases. The company regularly publishes new Lambda function by using an in-house deployment solution. The company wants to improve the release process and to use traffic shifting. A newly published function version should initially make available only to a fixed percentage of production users.
Which solution will meet these requirements?

  • A. Configure routing on the new versions by using environment variables.
  • B. Configure a linear deployment type for Lambda.
  • C. Configure a canary deployment type for Lambda.
  • D. Configure routing on the alias of the new function by using a weighted alias.

Answer: D

Explanation:
Weighted aliases allow you to route traffic to different versions of a function based on weights that you assign. This allows you to implement a canary deployment, where you initially route a small percentage of your traffic to the new version of the function, and then gradually increase the percentage as you gain confidence in the new version.


NEW QUESTION # 30
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