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| Certification Vendor: | Amazon AWS |
|---|---|
| Exam Name: | AWS Certified Developer - Associate |
| Exam Number: | DVA-C02 |
| Real Exam Qty: | 65 (50 scored, 15 unscored) |
| Exam Format: | Multiple-choice, Multiple-response |
| Passing Score: | 720 (scaled score 100โ1000) |
| Available Languages: | Japanese, Spanish (Latin America), Korean, English, Portuguese (Brazil), Simplified Chinese |
| Related Certifications: | AWS Certified SysOps Administrator - Associate AWS Certified Solutions Architect - Associate |
| Exam Price: | 150 USD |
| Certificate Validity Period: | 3 years |
| Exam Duration: | 130 minutes |
| 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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Amazon DVA-C02 Exam Tests candidates on a variety of topics related to AWS development, including AWS core services, security, database, and deployment. DVA-C02 exam is designed to assess a candidate's ability to design, develop, and deploy secure and scalable AWS applications using best practices and AWS services.
NEW QUESTION # 754
A team of developers is creating an application that writes data to Amazon S3. Part of the application needs to programmatically append data to an existing file that is in Amazon S3. Which solution will meet this requirement?
Answer: A
Explanation:
Amazon S3 objects are immutable - you cannot append in place. To add data to an existing object, your application must first retrieve (download) the current file, concatenate the new content, and then perform a PutObject (or multipart upload) to overwrite the object with the combined data. This approach ensures the file in S3 always reflects the appended content.
NEW QUESTION # 755
A company has installed smart meters in all its customer locations. The smart meters measure power usage at 1-minute intervals and send the usage readings to a remote endpoint for collection. The company needs to create an endpoint that will receive the smart meter readings and store the readings in a database. The company wants to store the location ID and timestamp information.
The company wants to give its customers low-latency access to their current usage and historical usage on demand. The company expects demand to increase significantly. The solution must not impact performance or include downtime while scaling.
Which solution will meet these requirements MOST cost-effectively?
Answer: C
NEW QUESTION # 756
A developer wants to deploy a new version of an AWS Elastic Beanstalk application. During deployment, the application must maintain full capacity and avoid service interruption. Additionally, the developer must minimize the cost of additional resources that support the deployment.
Which deployment method should the developer use to meet these requirements?
Answer: B
Explanation:
Explanation
The immutable deployment method is the best option for this scenario, because it meets the requirements of maintaining full capacity, avoiding service interruption, and minimizing the cost of additional resources.
The immutable deployment method creates a new set of instances in a separate Auto Scaling group and deploys the new version of the application to them. Then, it swaps the new instances with the old ones and terminates the old instances. This way, the application maintains full capacity during the deployment and avoids any downtime. The cost of additional resources is also minimized, because the new instances are only created for a short time and then replaced by the old ones.
The other deployment methods do not meet all the requirements:
* The all at once method deploys the new version to all instances simultaneously, which causes a short
* period of downtime and reduced capacity.
* The rolling with additional batch method deploys the new version in batches, but for the first batch it creates new instances instead of using the existing ones. This increases the cost of additional resources and reduces the capacity of the original environment.
* The blue/green method creates a new environment with a new set of instances and deploys the new version to them. Then, it swaps the URLs between the old and new environments. This method maintains full capacity and avoids service interruption, but it also increases the cost of additional resources significantly, because it duplicates the entire environment.
NEW QUESTION # 757
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?
Answer: A
NEW QUESTION # 758
A company has an application that runs as a series of AWS Lambda functions. Each Lambda function receives data from an Amazon Simple Notification Service (Amazon SNS) topic and writes the data to an Amazon Aurora DB instance.
To comply with an information security policy, the company must ensure that the Lambda functions all use a single securely encrypted database connection string to access Aurora.
Which solution will meet these requirements?
Answer: C
Explanation:
AWS Systems Manager Parameter Store offers a more centralized way to manage encrypted secrets across multiple services than Lambda environment variables, making it a better fit for this scenario.
NEW QUESTION # 759
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