DVA-C02 Exam Actual Questions | DVA-C02 Latest Braindumps Questions

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Amazon DVA-C02 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Troubleshooting and Optimization	18%	- Monitoring and logging 1. Amazon CloudWatch metrics and logs - Performance optimization 1. Fault tolerance and resilience patterns 2. Application performance tuning
Topic 2: Security	26%	- Data security 1. Encryption using AWS KMS 2. Secure API access patterns - Application authentication and authorization 1. IAM roles and policies 2. Cognito user authentication
Topic 3: Deployment	24%	- CI/CD and deployment strategies 1. AWS CodePipeline workflows 2. AWS CodeBuild and CodeDeploy usage - Infrastructure as code 1. AWS CloudFormation templates
Topic 4: Development with AWS Services	32%	- AWS core services development 1. Amazon S3 usage in applications 2. AWS Lambda functions development 3. Amazon DynamoDB integration patterns - Application development and integration 1. Event-driven architectures with SNS/SQS 2. API Gateway and REST APIs

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Amazon DVA-C02 Exam Actual Questions: AWS Certified Developer - Associate - DumpsKing Providers you Best Latest Braindumps Questions

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Amazon AWS Certified Developer - Associate Sample Questions (Q371-Q376):

NEW QUESTION # 371
A developer has a financial application. The application uses AWS Secrets Manager to manage an Amazon RDS for PostgreSQL database's username and password. The developer needs to rotate thepassword while maintaining the application's high availability. Which solution will meet these requirements with LEAST development effort?

A. Rotate the secret by using the single-user rotation strategy. Update the application with an appropriate retry strategy to handle authentication failures.
B. Rotate the secret by using the alternating-users rotation strategy. Update the application with an appropriate retry strategy to handle authentication failures.
C. Use the PostgreSQL client to create a new database username and password. Include the new secret values by performing an immediate rotation. Use the AWS CLI to update the RDS database password.
Perform an immediate rotation of the Secrets Manager secrets.
D. Rotate the secret by using multivalue answer rotation. Update the application with an appropriate retry strategy to handle authentication failures.

Answer: A

Explanation:
Requirement Summary:
* Secrets managed inAWS Secrets Manager
* DB:Amazon RDS for PostgreSQL
* Needautomated password rotation
* Must maintainhigh availability
* Least development effort
Rotation Strategies:
#Single-user rotation strategy
* #Simplest to implement
* The secret containsone set of credentialsused by app and rotation logic
* #Supportsautomated rotation
* AWS providesbuilt-in Lambda rotation templatesfor RDS
A: Alternating-users strategy
* ##More complex
* Requires application toswitch usersduring rotation window
B: Manual secret + CLI rotation
* #Too much manual work
* Not scalable or reliable
C: Multivalue answer rotation
* #Not a valid strategy in this context
* Doesn't apply to Secrets Manager
* Secrets Manager rotation strategies:https://docs.aws.amazon.com/secretsmanager/latest/userguide
/rotating-secrets.html
* RDS PostgreSQL secret rotation:https://docs.aws.amazon.com/secretsmanager/latest/userguide/rotating- secrets_strategies.html#rotating-secrets-single-user

NEW QUESTION # 372
Users are reporting errors in an application. The application consists of several microservices that are deployed on Amazon Elastic Container Service (Amazon ECS) with AWS Fargate.
Which combination of steps should a developer take to fix the errors? (Choose two.)

A. Instrument the application by using the AWS X-Ray SDK. Update the application to communicate with the X-Ray daemon.
B. Instrument the ECS task to send the stdout and stderr output to Amazon CloudWatch Logs.Update the task role policy to allow the cloudwatch:PullLogs action.
C. Instrument the application by using the AWS X-Ray SDK. Update the application to use the PutXrayTrace API call to communicate with the X-Ray API.
D. Deploy AWS X-Ray as a sidecar container to the microservices. Update the task role policy to allow access to the X-Ray API.
E. Deploy AWS X-Ray as a daemonset to the Fargate cluster. Update the service role policy to allow access to the X-Ray API.

Answer: A,D

NEW QUESTION # 373
A company has multiple Amazon VPC endpoints in the same VPC. A developer needs configure an Amazon S3 bucket policy so users can access an S3 bucket only by using these VPC endpoints.
Which solution will meet these requirements?

A. Create a single S3 bucket policy that has the aws SourceVpc value and in the StingNotEquals condition to use VPC ID.
B. Create multiple S3 bucket polices by using each VPC endpoint ID that have the aws SourceVpce value in the StringNotEquals condition.
C. Create a single S3 bucket policy that the multiple aws SourceVpce value and in the SringNotEquals condton to use vpce.
D. Create a single S3 bucket policy that has multiple aws sourceVpce value in the StingNotEquale condition. Repeat for all the VPC endpoint IDs.

Answer: D

Explanation:
This solution will meet the requirements by creating a single S3 bucket policy that denies access to the S3 bucket unless the request comes from one of the specified VPC endpoints. The aws:SourceVpce condition key is used to match the ID of the VPC endpoint that is used to access the S3 bucket. The StringNotEquals condition operator is used to negate the condition, so that only requests from the listed VPC endpoints are allowed. Option A is not optimal because it will create multiple S3 bucket policies, which is not possible as only one bucket policy can be attached to an S3 bucket. Option B is not optimal because it will use the aws:
SourceVpc condition key, which matches the ID of the VPC that is used to access the S3 bucket, not the VPC endpoint. Option C is not optimal because it will use the StringNotEquals condition operator with a single value, which will deny access to the S3 bucket from all VPC endpoints except one.

NEW QUESTION # 374
A company is using Amazon RDS as the backend database for its application. After a recent marketing campaign, a surge of read requests to the database increased the latency of data retrieval from the database. The company has decided to implement a caching layer in front of the database. The cached content must be encrypted and must be highly available.
Which solution will meet these requirements?

A. Amazon ElastiCache for Memcached
B. Amazon DynamoDB Accelerator (DAX)
C. Amazon CloudFront
D. Amazon ElastiCache for Redis in cluster mode

Answer: D

NEW QUESTION # 375
A developer is creating an AWS Serverless Application Model (AWS SAM) template. The AWS SAM template contains the definition of multiple AWS Lambda functions, an Amazon S3 bucket, and an Amazon CtoudFront distribution. One of the Lambda functions runs on Lambda@Edge in the CloudFront distribution. The S3 bucket is configured as an origin for the CloudFront distribution.
When the developer deploys the AWS SAM template in the eu-west-1 Region, the creation of the stack fails.
Which of the following could be the reason for this issue?

A. A single AWS SAM template cannot contain multiple Lambda functions.
B. CloudFront distributions can be created only in the us-east-1 Region.
C. Lambda@Edge functions can be created only in the us-east-1 Region.
D. The CloudFront distribution and the S3 bucket cannot be created in the same Region.

Answer: C

NEW QUESTION # 376
......

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