TRUSTWORTHY REAL DVA-C02 QUESTIONS & LEADER IN QUALIFICATION EXAMS & ACCURATE PASS4SURE DVA-C02 STUDY MATERIALS

Trustworthy Real DVA-C02 Questions & Leader in Qualification Exams & Accurate Pass4sure DVA-C02 Study Materials

Trustworthy Real DVA-C02 Questions & Leader in Qualification Exams & Accurate Pass4sure DVA-C02 Study Materials

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To be eligible for the Amazon DVA-C02 Exam, candidates must have at least one year of experience in developing and maintaining AWS-based applications. They should have a good understanding of AWS core services and be proficient in at least one programming language such as Java, Python, or Ruby. Candidates should also have experience working with AWS SDKs and APIs, and be familiar with AWS CLI and CloudFormation.

Amazon AWS Certified Developer - Associate Sample Questions (Q260-Q265):

NEW QUESTION # 260
A company is migrating an on-premises database to Amazon RDS for MySQL. The company has read- heavy workloads. The company wants to refactor the code to achieve optimum read performance for queries.
Which solution will meet this requirement with LEAST current and future effort?

  • A. Deploy Amazon RDS with one or more read replicas. Modify the application code so that queries use the URL for the read replicas.
  • B. Use a multi-AZ Amazon RDS deployment. Increase the number of connections that the code makes to the database or increase the connection pool size if a connection pool is in use.
  • C. Use a multi-AZ Amazon RDS deployment. Modify the code so that queries access the secondary RDS instance.
  • D. Use open source replication software to create a copy of the MySQL database on an Amazon EC2 instance. Modify the application code so that queries use the IP address of the EC2 instance.

Answer: A

Explanation:
https://aws.amazon.com/rds/features/read-replicas/


NEW QUESTION # 261
A development team maintains a web application by using a single AWS CloudFormation template. The template defines web servers and an Amazon RDS database. The team uses the Cloud Formation template to deploy the Cloud Formation stack to different environments. During a recent application deployment, a developer caused the primary development database to be dropped and recreated. The result of this incident was a loss of data. The team needs to avoid accidental database deletion in the future.
Which solutions will meet these requirements? (Choose two.)

  • A. Create a CloudFormation stack set for the web application and database deployments.
  • B. Add a Cloud Formation DeletionPolicy attribute with the Retain value to the stack.
  • C. Modify the database to use a Multi-AZ deployment.
  • D. Update the CloudFormation stack policy to prevent updates to the database.
  • E. Add a CloudFormation Deletion Policy attribute with the Retain value to the database resource.

Answer: D,E

Explanation:
https://aws.amazon.com/ru/premiumsupport/knowledge-center/cloudformation-accidental- updates/


NEW QUESTION # 262
A company is running Amazon EC2 instances in multiple AWS accounts. A developer needs to implement an application that collects all the lifecycle events of the EC2 instances. The application needs to store the lifecycle events in a single Amazon Simple Queue Service (Amazon SQS) queue in the company's main AWS account for further processing.
Which solution will meet these requirements?

  • A. Write an AWS Lambda function that scans through all EC2 instances in the company accounts to detect EC2 instance lifecycle changes. Configure the Lambda function to write a notification message to the SQS queue in the main account if the function detects an EC2 instance lifecycle change. Add an Amazon EventBridge scheduled rule that invokes the Lambda function every minute.
  • B. Configure the permissions on the main account event bus to receive events from all accounts. Create an Amazon EventBridge rule in each account to send all the EC2 instance lifecycle events to the main account event bus. Add an EventBridge rule to the main account event bus that matches all EC2 instance lifecycle events. Set the SQS queue as a target for the rule.
  • C. Configure Amazon EC2 to deliver the EC2 instance lifecycle events from all accounts to the Amazon EventBridge event bus of the main account. Add an EventBridge rule to the event bus of the main account that matches all EC2 instance lifecycle events. Add the SQS queue as a target of the rule.
  • D. Use the resource policies of the SQS queue in the main account to give each account permissions to write to that SQS queue. Add to the Amazon EventBridge event bus of each account an EventBridge rule that matches all EC2 instance lifecycle events. Add the SQS queue in the main account as a target of the rule.

Answer: B


NEW QUESTION # 263
A web application is using Amazon Kinesis Data Streams for clickstream data that may not be consumed for up to 12 hours.
How can the developer implement encryption at rest for data within the Kinesis Data Streams?

  • A. Enable server-side encryption in Kinesis Data Streams.
  • B. Encrypt the data once it is at rest with a Lambda function.
  • C. Use Amazon Kinesis Consumer Library.
  • D. Enable SSL connections to Kinesis.

Answer: C


NEW QUESTION # 264
A developer has created an AWS Lambda function to provide notification through Amazon Simple Notification Service (Amazon SNS) whenever a file is uploaded to Amazon S3 that is larger than
50 MB. The developer has deployed and tested the Lambda function by using the CLI. However, when the event notification is added to the S3 bucket and a 3,000 MB file is uploaded, the Lambda function does not launch.
Which of the following is a possible reason for the Lambda function's inability to launch?

  • A. The S3 event notification does not activate for files that are larger than 1,000 MB.
  • B. Lambda functions cannot be invoked directly from an S3 event.
  • C. The S3 bucket needs to be made public.
  • D. The resource-based policy for the Lambda function does not have the required permissions to be invoked by Amazon S3.

Answer: D


NEW QUESTION # 265
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