Who really needs the help of Amazon DVA-C02 dumps?
Needless to say! Candidates who are preparing for the DVA-C02 exam “AWS Certified Developer – Associate” can participate in this exam practice plan!
Amazon DVA-C02 dumps provide 142 latest exam questions and answers, edited, reviewed, and corrected by Amazon professional team to be true and effective! It is the best preparation material for the DVA-C02 exam! You can use Amazon DVA-C02 dumps:
https://www.pass4itsure.com/dva-c02.html, to help you prepare the best in advance and ensure that you pass the exam 100%.
Amazon DVA-C02 Exam Details:
| Exam Name: | AWS Certified Developer – Associate |
| Exam Code: | DVA-C02 |
| Level: | Associate |
| Time: | 130 Min |
| Price: | $150 |
| Number of exam questions: | 65 |
| Exam Type: | Single-choice or multiple-choice |
| Test Method: | Pearson VUE |
| Langues: | English, French (France), German, Italian, Japanese, Korean, Portuguese (Brazil), Simplified Chinese, and Spanish (Latin America) |
Practice the latest Amazon DVA-C02 dumps exam questions:
| From | Number of exam questions | Associated certification |
| Pass4itsure | 15/142 | AWS Certified Associate |
Question 1:
A company\’s new mobile app uses Amazon API Gateway. As the development team completes a new release of its APIs, a developer must safely and transparently roll out the API change. What is the SIMPLEST solution for the developer to use for rolling out the new API version to a limited number of users through API Gateway?
A. Create a new API in API Gateway. Direct a portion of the traffic to the new API using an Amazon Route 53 weighted routing policy.
B. Validate the new API version and promote it to production during the window of lowest expected utilization.
C. Implement an Amazon CloudWatch alarm to trigger a rollback if the observed HTTP 500 status code rate exceeds a predetermined threshold.
D. Use the canary release deployment option in API Gateway. Direct a percentage of the API traffic using the canarySettings setting.
Correct Answer: D
Question 2:
A company has a critical application on AWS. The application exposes an HTTP API by using Amazon API Gateway. The API is integrated with an AWS Lambda function. The application stores data in an Amazon RDS for MySQL DB instance with 2 virtual CPUs (vCPUs) and 64 GB of RAM.
Customers have reported that some of the API calls return HTTP 500 Internal Server Error responses. Amazon CloudWatch Logs show errors for “too many connections.” The errors occur during peak usage times that are unpredictable.
The company needs to make the application resilient. The database cannot be down outside of scheduled maintenance hours. Which solution will meet these requirements?
A. Decrease the number of vCPUs for the DB instance. Increase the max_connections setting.
B. Use Amazon RDS Proxy to create a proxy that connects to the DB instance. Update the Lambda function to connect to the proxy.
C. Add a CloudWatch alarm that changes the DB instance class when the number of connections increases to more than 1,000.
D. Add an Amazon EventBridge rule that increases the max_connections setting of the DB instance when CPU utilization is above 75%.
Correct Answer: B
Question 3:
A developer has created an AWS Lambda function that is written in Python. The Lambda function reads data from objects in Amazon S3 and writes data to an Amazon DynamoDB table. The function is successfully invoked from an S3 event notification when an object is created. However, the function fails when it attempts to write to the DynamoDB table.
What is the MOST likely cause of this issue?
A. The Lambda function\’s concurrency limit has been exceeded.
B. DynamoDB table requires a global secondary index (GSI) to support writes.
C. The Lambda function does not have IAM permissions to write to DynamoDB.
D. The DynamoDB table is not running in the same Availability Zone as the Lambda function.
Correct Answer: D
Question 4:
A company is providing read access to objects in an Amazon S3 bucket for different customers. The company uses IAM permissions to restrict access to the S3 bucket. The customers can access only their own files.
Due to a regulation requirement, the company needs to enforce encryption in transit for interactions with Amazon S3.
Which solution will meet these requirements?
A. Add a bucket policy to the S3 bucket to deny S3 actions when the aws: SecureTransport condition is equal to false.
B. Add a bucket policy to the S3 bucket to deny S3 actions when the s3:x-am-acl condition is equal to public-read.
C. Add an IAM policy to the IAM users to enforce the usage of the AWS SDK.
D. Add an IAM policy to the IAM users that allows S3 actions when the s3:x-am-acl condition is equal to bucket-owner-read.
Correct Answer: D
Question 5:
A developer has written the following IAM policy to provide access to an Amazon S3 bucket:
Which access does the policy allow regarding the s3:GetObject and s3:PutObject actions?
A. Access on all buckets except the “DOC-EXAMPLE-BUCKET” bucket B. Access on all buckets that start with “DOC-EXAMPLE-BUCKET” except the “DOC- EXAMPLE-BUCKET/secrets” bucket
C. Access to all objects in the “DOC-EXAMPLE-BUCKET” bucket along with access to all S3 actions for objects in the “DOC-EXAMPLE-BUCKET” bucket that start with “secrets”
D. Access on all objects in the “DOC-EXAMPLE-BUCKET” bucket except on objects that start with “secrets”
Correct Answer: D
Question 6:
A developer is creating a template that uses AWS CloudFormation to deploy an application. The application is serverless and uses Amazon API Gateway, Amazon DynamoDB, and AWS Lambda. Which AWS service or tool should the developer use to define serverless resources in YAML?
A. CloudFormation serverless intrinsic functions
B. AWS Elastic Beanstalk
C. AWS Serverless Application Model (AWS SAM)
D. AWS Cloud Development Kit (AWS CDK)
Correct Answer: C
Question 7:
A developer is creating an AWS Lambda function. The Lambda function needs an external library to connect to a third-party solution. The external library is a collection of files with a total size of 100 MB. The developer needs to make the external library available to the Lambda execution environment and reduce the Lambda package space.
Which solution will meet these requirements with the LEAST operational overhead?
A. Create a Lambda layer to store the external library. Configure the Lambda function to use the layer.
B. Create an Amazon S3 bucket. Upload the external library into the S3 bucket. Mount the S3 bucket folder in the Lambda function. Import the library by using the proper folder in the mount point.
C. Load the external library to the Lambda function\’s /tmp directory during deployment of the Lambda package. Import the library from the /tmp directory.
D. Create an Amazon Elastic File System (Amazon EFS) volume. Upload the external library to the EFS volume. Mount the EFS volume in the Lambda function. Import the library by using the proper folder in the mount point.
Correct Answer: C
Question 8:
An e-commerce company is using an AWS Lambda function behind Amazon API Gateway as its application tier. To process orders during checkout, the application calls a POST API from the front end. The POST API invokes the Lambda function asynchronously. In rare situations, the application has not processed orders. The Lambda application logs show no errors or failures.
What should a developer do to solve this problem?
A. Inspect the frontend logs for API failures. Call the POST API manually by using the requests from the log file.
B. Create and inspect the Lambda dead-letter queue. Troubleshoot the failed functions. Reprocess the events.
C. Inspect the Lambda logs in Amazon CloudWatch for possible errors. Fix the errors.
D. Make sure that caching is disabled for the POST API in API Gateway.
Correct Answer: B
Question 9:
A developer is updating several AWS Lambda functions and notices that all the Lambda functions share the same custom libraries. The developer wants to centralize all the libraries, update the libraries in a convenient way, and keep the libraries versioned.
Which solution will meet these requirements with the LEAST development effort?
A. Create an AWS CodeArtifact repository that contains all the custom libraries.
B. Create a custom container image for the Lambda functions to save all the custom libraries.
C. Create a Lambda layer that contains all the custom libraries.
D. Create an Amazon Elastic File System (Amazon EFS) file system to store all the custom libraries.
Correct Answer: D
Question 10:
A developer is incorporating AWS X-Ray into an application that handles personally identifiable information (PII). The application is hosted on Amazon EC2 instances. The application trace messages include encrypted PII and go to Amazon CloudWatch. The developer needs to ensure that no PII goes outside of the EC2 instances.
Which solution will meet these requirements?
A. Manually instrument the X-Ray SDK in the application code.
B. Use the X-Ray auto-instrumentation agent.
C. Use Amazon Macie to detect and hide PII. Call the X-Ray API from AWS Lambda.
D. Use AWS Distro for Open Telemetry.
Correct Answer: B
Question 11:
A developer is integrating Amazon ElastiCache into an application. The cache will store data from a database. The cached data must populate real-time dashboards. Which caching strategy will meet these requirements?
A. A read-through cache
B. A write-behind cache
C. A lazy-loading cache
D. A write-through cache
Correct Answer: D
Question 12:
A company is creating an application that processes .csv files from Amazon S3. A developer has created an S3 bucket. The developer has also created an AWS Lambda function to process the .csv files from the S3 bucket. Which combination of steps will invoke the Lambda function when a .csv file is uploaded to Amazon S3? (Choose two.)
A. Create an Amazon EventBridge rule. Configure the rule with a pattern to match the S3 object-created event.
B. Schedule an Amazon EventBridge rule to run a new Lambda function to scan the S3 bucket.
C. Add a trigger to the existing Lambda function. Set the trigger type to EventBridge. Select the Amazon EventBridge rule.
D. Create a new Lambda function to scan the S3 bucket for recently added S3 objects.
E. Add S3 Lifecycle rules to invoke the existing Lambda function.
Correct Answer: BD
Question 13:
A developer is creating an AWS Lambda function in VPC mode. An Amazon S3 event will invoke the Lambda function when an object is uploaded into an S3 bucket. The Lambda function will process the object and produce some analytic results that will be recorded into a file. Each processed object will also generate a log entry that will be recorded into a file.
Other Lambda functions, AWS services, and on-premises resources must have access to the result files and log files. Each log entry must also be appended to the same shared log file. The developer needs a solution that can share files and append results to an existing file.
Which solution should the developer use to meet these requirements?
A. Create an Amazon Elastic File System (Amazon EFS) file system. Mount the EFS file system in Lambda. Store the result files and log files in the mount point. Append the log entries to the log file.
B. Create an Amazon Elastic Block Store (Amazon EBS) Multi-Attach enabled volume. Attach the EBS volume to all Lambda functions. Update the Lambda function code to download the log file, append the log entries, and upload the modified log file to Amazon EBS.
C. Create a reference to the /tmp local directory. Store the result files and log files by using the directory reference. Append the log entry to the log file.
D. Create a reference to the /opt storage directory. Store the result files and log files by using the directory reference. Append the log entry to the log file.
Correct Answer: A
Question 14:
A developer is writing an AWS Lambda function. The developer wants to log key events that occur while the Lambda function runs. The developer wants to include a unique identifier to associate the events with a specific function invocation. The developer adds the following code to the Lambda function:
Which solution will meet this requirement?
A. Obtain the request identifier from the AWS request ID field in the context object. Configure the application to write logs to standard output.
B. Obtain the request identifier from the AWS request ID field in the event object. Configure the application to write logs to a file.
C. Obtain the request identifier from the AWS request ID field in the event object. Configure the application to write logs to standard output.
D. Obtain the request identifier from the AWS request ID field in the context object. Configure the application to write logs to a file.
Correct Answer: D
Question 15:
A developer has written an AWS Lambda function. The function is CPU-bound. The developer wants to ensure that the function returns responses quickly.
How can the developer improve the function\’s performance?
A. Increase the function\’s CPU core count.
B. Increase the function\’s memory.
C. Increase the function\’s reserved concurrency.
D. Increase the function\’s timeout.
Correct Answer: B
…
Now you should understand how Amazon DVA-C02 dumps can help!
Yes! It’s for candidates taking the Amazon DVA-C02 exam!
Amazon DVA-C02 dumps provide PDF and VCE two practice formats! Candidates are free to choose! Both formats contain 142 newly updated exam questions and answers, and can be practiced at any level! You only need to spend 1-2 days Seriously practicing Amazon DVA-C02 dumps to ensure you pass the exam with ease.