AMAZON DVA-C02 EXAM STUDY SOLUTIONS - DVA-C02 VCE FILES

Amazon DVA-C02 Exam Study Solutions - DVA-C02 Vce Files

Amazon DVA-C02 Exam Study Solutions - DVA-C02 Vce Files

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Amazon DVA-C02: AWS Certified Developer - Associate exam is a challenging but rewarding certification exam for developers who want to validate their AWS development skills. AWS Certified Developer - Associate certification can help you differentiate yourself from other developers and open up new career opportunities. With proper preparation and study, you can pass the exam and gain the valuable certification that can help you advance your career as an AWS developer.

The AWS Certified Developer - Associate certification exam covers a wide range of topics, including AWS core services, security, databases, and deployment and management. Candidates are required to have a strong understanding of programming languages such as Python, Java, and Ruby, as well as experience with AWS services such as EC2, S3, and Lambda.

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Amazon AWS Certified Developer - Associate Sample Questions (Q323-Q328):

NEW QUESTION # 323
A company has a web application that is hosted on Amazon EC2 instances The EC2 instances are configured to stream logs to Amazon CloudWatch Logs The company needs to receive an Amazon Simple Notification Service (Amazon SNS) notification when the number of application error messages exceeds a defined threshold within a 5-minute period Which solution will meet these requirements?

  • A. Configure a subscription filter on the CloudWatch Logs log group. Configure the filter to send an SNS notification when the number of errors exceeds the defined threshold within a 5-minute period.
  • B. Create a CloudWatch metric filter to match the application error pattern in the log data. Set up a CloudWatch alarm based on the new custom metric. Configure the alarm to send an SNS notification when the number of errors exceeds the defined threshold within a 5-minute period.
  • C. Rewrite the application code to stream application logs to Amazon SNS Configure an SNS topic to send a notification when the number of errors exceeds the defined threshold within a 5-minute period
  • D. Install and configure the Amazon Inspector agent on the EC2 instances to monitor for errors Configure Amazon Inspector to send an SNS notification when the number of errors exceeds the defined threshold within a 5-minute period

Answer: B

Explanation:
* CloudWatch for Log Analysis: CloudWatch is the best fit here because logs are already centralized.
Here's the process:
* Metric Filter: Create a metric filter on the CloudWatch Logs log group. Design a pattern to specifically identify application error messages.
* Custom Metric: This filter generates a new custom CloudWatch metric (e.g., ApplicationErrors).
This metric tracks the error count.
* CloudWatch Alarm: Create an alarm on the ApplicationErrors metric. Configure the alarm with your desired threshold and a 5-minute evaluation period.
* SNS Action: Set the alarm to trigger an SNS notification when it enters the alarm state.


NEW QUESTION # 324
A developer is publishing critical log data to a log group in Amazon CloudWatch Logs. The log group was created 2 months ago. The developer must encrypt the log data by using an AWS Key Management Service (AWS KMS) key so that future data can be encrypted to comply with the company's security policy.
Which solution will meet this requirement with the LEAST effort?

  • A. Use the AWS KMS console to associate the KMS key with the log group.
  • B. Use the AWS CLI aws logs associate-kms-key command, and specify the key Amazon Resource Name (ARN).
  • C. Use the AWS CLI aws logs create-log-group command, and specify the key Amazon Resource Name (ARN).
  • D. Use the AWS Encryption SDK for encryption and decryption of the data before writing to the log group.

Answer: B

Explanation:
https://docs.aws.amazon.com/cli/latest/reference/logs/associate-kms-key.html


NEW QUESTION # 325
A company has an AWS Step Functions state machine named myStateMachine. The company configured a service role for Step Functions. The developer must ensure that only the myStateMachine state machine can assume the service role.
Which statement should the developer add to the trust policy to meet this requirement?

  • A. "Condition": { "ArnLike": { "aws:SourceArn":"arn:aws:states:ap-south-1:*:stateMachine:myStateMachine" } }
  • B. "Condition": { "StringEquals": { "aws:SourceAccount": "111111111111" } }
  • C. "Condition": { "ArnLike": { "aws:SourceArn":"urn:aws:states:ap-south-1:111111111111:stateMachine:myStateMachine" } }
  • D. "Condition": { "StringNotEquals": { "aws:SourceArn":"arn:aws:states:ap-south-1:111111111111:stateMachine:myStateMachine" } }

Answer: C

Explanation:
Comprehensive Detailed Explanation with all AWS Reference
Why Option A is Correct:
The ArnLike condition with the specific ARN for myStateMachine ensures that only this state machine can assume the role. The format urn:aws:states is correct for specifying Step Functions resources.
Why Other Options are Incorrect:
Option B: Wildcards (*) in the ARN allow more resources to assume the role, which violates the requirement.
Option C: This condition restricts the account but not the specific state machine.
Option D: A StringNotEquals condition is used to deny specific values, which does not ensure exclusivity for the desired state machine.
AWS Documentation Reference:
IAM Trust Policies for Step Functions


NEW QUESTION # 326
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?

  • A. Create a Lambda layer with the required Python library. Use the Lambda layer in both Lambda functions.
  • B. Combine the two Lambda functions into one Lambda function. Deploy the Lambda function as a single .zip file archive.
  • C. Download the Python library to an S3 bucket. Program the Lambda functions to reference the object URLs.
  • D. Package each Python library in its own .zip file archive. Deploy each Lambda function with its own copy of the library.

Answer: A

Explanation:
https://docs.aws.amazon.com/lambda/latest/dg/configuration-layers.html


NEW QUESTION # 327
A company developed an API application on AWS by using Amazon CloudFront, Amazon API Gateway, and AWS Lambda. The API has a minimum of four requests every second. A developer notices that many API users run the same query by using the POST method. The developer wants to cache the POST request to optimize the API resources.
Which solution will meet these requirements?

  • A. Override the cache method in the selected stage of API Gateway. Select the POST method.
  • B. Configure the CloudFront cache. Update the application to return cached content based upon the default request headers.
  • C. Save the latest request in AWS Systems Manager Parameter Store. Modify the Lambda function to take the latest request response from Parameter Store.
  • D. Save the latest request response in Lambda /tmp directory. Update the Lambda function to check the
    /tmp directory.

Answer: A

Explanation:
Amazon API Gateway provides tools for creating and documenting web APIs that route HTTP requests to Lambda functions2. You can secure access to your API with authentication and authorization controls. Your APIs can serve traffic over the internet or can be accessible only within your VPC2. You can override the cache method in the selected stage of API Gateway2. Therefore, option B is correct.


NEW QUESTION # 328
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