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| Certification Vendor: | Amazon AWS |
|---|---|
| Exam Name: | AWS Certified Developer - Associate |
| Exam Number: | DVA-C02 |
| Related Certifications: | AWS Certified Solutions Architect - Associate AWS Certified SysOps Administrator - Associate |
| Real Exam Qty: | 65 (50 scored, 15 unscored) |
| Available Languages: | Portuguese (Brazil), English, Simplified Chinese, Korean, Japanese, Spanish (Latin America) |
| Passing Score: | 720 (scaled score 100–1000) |
| Exam Format: | Multiple-response, Multiple-choice |
| Certificate Validity Period: | 3 years |
| Exam Duration: | 130 minutes |
| Exam Price: | 150 USD |
| Recommended Training: | AWS Certified Developer - Associate Exam Prep AWS Skill Builder |
| Exam Registration: | AWS Certification Registration Pearson VUE Registration |
| Sample Questions: | Amazon DVA-C02 Sample Questions |
| Exam Way: | Online proctored or onsite at Pearson VUE testing centers |
| Pre Condition: | Recommended: 1+ year of hands-on experience developing applications on AWS, familiarity with AWS core services, basic understanding of cloud architecture |
| Official Syllabus URL: | https://docs.aws.amazon.com/aws-certification/latest/developer-associate-02/developer-associate-02.html |
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To prepare for the Amazon DVA-C02 exam, candidates are recommended to have at least one year of experience in developing and maintaining applications on AWS. They can also take advantage of the training and resources provided by AWS, such as online courses, practice exams, and study guides. Passing the Amazon DVA-C02 Exam requires a score of at least 720 out of 1000, and the certification is valid for two years. Overall, the Amazon DVA-C02 certification is a valuable credential for developers who want to advance their careers in cloud computing and demonstrate their expertise in AWS.
NEW QUESTION # 99
A new application must run a security service in an isolated virtual machine (VM). The application must be physically close to the VM to reduce data transmission latency. Also, the application and the security service must be placed on the same compute resource to streamline the deployment.
Which compute host will provide the LOWEST latency between the application and the VM?
Answer: D
Explanation:
An Amazon EC2 instance with AWS Nitro Enclaves provides a secure, isolated VM (enclave) that runs on the same physical host as the parent EC2 instance. This setup ensures the lowest possible latency between the application and the security service due to shared compute resources and local communication via vsock.
NEW QUESTION # 100
A company has an application that receives batches of orders from partners every day. The application uses an AWS Lambda function to process the batches.
If a batch contains no orders, the Lambda function must publish to an Amazon SNS topic as soon as possible.
Which combination of steps will meet this requirement with the LEAST implementation effort? (Select TWO.)
Answer: C,E
Explanation:
The least implementation effort is to publish a custom CloudWatch metric from the existing Lambda function that records the number of orders in each batch, then create a CloudWatch alarm that sends a notification to the SNS topic when the metric value is 0. This avoids building a separate stream-processing pipeline or scheduled analytics job. A new Kinesis consumer and Lambda function would add unnecessary services and operational complexity. A 24-hour scheduled function is also slower than required because the notification must happen as soon as possible. Logging to Kinesis only creates more data movement and still requires separate analysis logic. CloudWatch supports custom metrics, and CloudWatch alarms can send notifications through Amazon SNS when metric thresholds are breached. ( AWS Documentation )
NEW QUESTION # 101
A mobile app stores blog posts in an Amazon DynacnoDB table Millions of posts are added every day and each post represents a single item in the table. The mobile app requires only recent posts. Any post that is older than 48 hours can be removed.
What is the MOST cost-effective way to delete posts that are older man 48 hours?
Answer: D
Explanation:
Explanation
This solution will meet the requirements by using the Time to Live (TTL) feature of DynamoDB, which enables automatically deleting items from a table after a certain time period. The developer can add a new attribute of type Number that has a timestamp that is set to 48 hours after the blog post creation time, which represents the expiration time of the item. The developer can configure the DynamoDB table with a TTL that references the new attribute, which instructs DynamoDB to delete the item when the current time is greater than or equal to the expiration time. This solution is also cost-effective as it does not incur any additional charges for deleting expired items. Option A is not optimal because it will create a script to find and remove old posts with a table scan and a batch write item API operation, which may consume more read and write capacity units and incur more costs. Option B is not optimal because it will use Amazon Elastic Container Service (Amazon ECS) and AWS Fargate to run the script, which may introduce additional costs and complexity for managing and scaling containers. Option C is not optimal because it will create a global secondary index (GSI) that uses the expiration time as a sort key, which may consume more storage space and incur more costs.
References: Time To Live, Managing DynamoDB Time To Live (TTL)
NEW QUESTION # 102
A development team is using an Amazon SNS topic as part of an application. The development team is using an AWS SDK to send messages to the SNS topic. The SNS topic sends an email message to a specific person when each message arrives in the topic.
The development team wants a solution to invoke a specific AWS Lambda function if a message that arrives in the topic contains the word "Important" in the title attribute of the JSON message.
The solution must not require any changes to the application code.
Which solution will meet these requirements?
Answer: C
Explanation:
The correct solution is to add a new subscription to the existing SNS topic that invokes the Lambda function and uses an SNS subscription filter policy to match messages with a title attribute that contains "Important". This approach requires no changes to the application code, since it leverages SNS filtering at the subscription level.
NEW QUESTION # 103
A developer maintains applications that store several secrets in AWS Secrets Manager. The applications use secrets that have changed over time. The developer needs to identify required secrets that are still in use. The developer does not want to cause any application downtime.
What should the developer do to meet these requirements?
Answer: B
Explanation:
Explanation
This solution will meet the requirements by using AWS Config to monitor and evaluate whether Secrets Manager secrets are unused or have been deleted, based on specified time periods. The secrets manager-secret-unused managed rule is a predefined rule that checks whether Secrets Manager secrets have been rotated within a specified number of days or have been deleted within a specified number of days after last accessed date. The Amazon EventBridge rule will trigger a notification when the AWS Config managed rule is met, alerting the developer about unused secrets that can be removed without causing application downtime. Option A is not optimal because it will use AWS CloudTrail log file delivery to an Amazon S3 bucket, which will incur additional costs and complexity for storing and analyzing log files that may not contain relevant information about secret usage. Option C is not optimal because it will deactivate the application secrets and monitor the application error logs temporarily, which will cause application downtime and potential data loss. Option D is not optimal because it will use AWS X-Ray to trace secret usage, which will introduce additional overhead and latency for instrumenting and sampling requests that may not be related to secret usage.
References: [AWS Config Managed Rules], [Amazon EventBridge]
NEW QUESTION # 104
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