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The DVA-C01 certification exam consists of multiple-choice and multiple-response questions, and candidates have two hours to complete the exam. To pass the exam, candidates must demonstrate their knowledge of AWS services and features, application development, and security best practices. Achieving the DVA-C01 certification demonstrates to employers and peers that an individual has the skills and knowledge to develop and deploy applications on the AWS platform, making them a valuable asset to any organization using AWS.

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The Amazon DVA-C01 certification exam is designed to test the knowledge and skills of developers who work with Amazon Web Services (AWS). This certification is intended for individuals who have experience developing and deploying applications on AWS and who are looking to validate their expertise in this area. The exam covers a range of topics, including AWS services and features, application development, and security best practices.

Amazon AWS Certified Developer Associate Exam Sample Questions (Q349-Q354):

NEW QUESTION # 349
A nightly batch job loads 1 million new records into a DynamoDB table. The records are only needed for one hour, and the table needs to be empty by the next night's batch job.
Which is the MOST efficient and cost-effective method to provide an empty table?

A. Use BatchWriteItem to empty all of the rows.
B. With a recursive function that scans and calls out DeleteItem.
C. Create and then delete the table after the task has completed.
D. Use DeleteItem using a ConditionExpression.

Answer: C

Explanation:
"Deleting an entire table is significantly more efficient than removing items one-by-one, which essentially doubles the write throughput as you do as many delete operations as put operations"

NEW QUESTION # 350
An application is processing clickslream data using Amazon Kinesis. The clickstream data feed into Kinesis experiences periodic spikes. The PutRecords API call occasionally fails and the logs show that the failed call returns the response shown below.

Which techniques will help mitigate this exception? (Select TWO.)

A. Reduce the frequency and/or size of the requests
B. Implement retries with exponential backoff
C. Use Amazon SNS instead of Kinesis.
D. Reduce the number of KCL consumers.
E. Use a PutRecord API instead of PutRecords

Answer: A,B

NEW QUESTION # 351
An organization is using Amazon CloudFront to ensure that its users experience low-latency access to its web application. The organization has identified a need to encrypt all traffic between users and CloudFront, and all traffic between CloudFront and the web application.
How can these requirements be met? (Choose two.)

A. Set the Viewer Protocol Policy to "HTTPS Only" or "Redirect HTTP to HTTPS".
B. Enable the CloudFront option Restrict Viewer Access.
C. Set the Origin's HTTP Port to 443.
D. Set the Origin Protocol Policy to "HTTPS Only".
E. Use AWS KMS to encrypt traffic between CloudFront and the web application.

Answer: A,D

Explanation:
Explanation
https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/using-https-viewers-to-cloudfront.html
https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/using-https-cloudfront-to-custom-origi

NEW QUESTION # 352
What item operation allows the retrieval of multiple items from a DynamoDB table in a single API call?

A. GetItemRange
B. GetMultipleItems
C. BatchGetItem
D. GetItem

Answer: C

Explanation:
Reference:
https://docs.aws.amazon.com/amazondynamodb/latest/APIReference/API_BatchGetItem.html

NEW QUESTION # 353
A startup s photo-sharing site is deployed in a VPC. An ELB distributes web traffic across two subnets. ELB session stickiness is configured to use the AWS-generated session cookie, with a session TTL of 5 minutes.
The webserver Auto Scaling Group is configured as: min-size=4, max-size=4.
The startups preparing for a public launch, by running load-testing software installed on a single EC2 instance running in us-west-2a. After 60 minutes of load-testing, the webserver logs show:
Which recommendations can help ensure load-testing HTTP requests are evenly distributed across the four webservers? Choose 2 answers

A. Configure ELB session stickiness to use the app-specific session cookie.
B. Launch and run the load-tester EC2 instance from us-east-1 instead.
C. Use a 3rd-party load-testing service which offers globally-distributed test clients.
D. Configure ELB and Auto Scaling to distribute across us-west-2a and us-west-2c.
E. Re-configure the load-testing software to re-resolve DNS for each web request.

Answer: A,C

NEW QUESTION # 354
......

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