DVA-C01 Dumps

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Vendor: Amazon

Certifications: Amazon Certifications

Exam Name: AWS Certified Developer - Associate (DVA-C01)

Exam Code: DVA-C01

Total Questions: 703 Q&As

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DVA-C01 Q&A's Detail

Exam Code: DVA-C01
Total Questions: 703

DVA-C01 Online Practice Questions and Answers

Questions 1

When writing a Lambda function, what is the benefit of instantiating AWS clients outside the scope of the handler?

A. Legibility and stylistic convention

B. Taking advantage of connection re-use

C. Better error handling

D. Creating a new instance per invocation

Show Answer
Questions 2

A data-processing application includes an AWS Lambda function that processes data in several steps. Recently, the function has been reaching the Lambda tii A developer wants to use AWS X-Ray to find out how long each step is taking so that the developer can determine which step is causing the timeout.

Which combination of actions should the developer take to accomplish this goal? (Select TWO.)

A. Modify the application to call the PutMetricData API operation after each processing step. Include the time taken in milliseconds.

B. Use the aws lambda update-function-configuration AWS CLI command to enable active tracing on the Lambda function.

C. Modify the application to record each processing step in an X-Ray subsegment by using the X-Ray software development kit (SDK).

D. Add the xray:PutTraceSegments permission and the xray:PutTelemetryRecords permission to the Lambda function's execution role.

E. Modify the application to put each processing step in a separate Lambda layer. Include all the layers in the Lambda function.

Show Answer
Questions 3

A Developer must build an application that uses Amazon DynamoDB. The requirements state that items being stored in the DynamoDB table will be 7KB in size and that reads must be strongly consistent. The maximum read rate is 3 items per second, and the maximum write rate is 10 items per second.

How should the Developer size the DynamoDB table to meet these requirements?

A. Read: 3 read capacity units Write: 70 write capacity units

B. Read: 6 read capacity units Write: 70 write capacity units

C. Read: 6 read capacity units Write: 10 write capacity units

D. Read: 3 read capacity units Write: 10 write capacity units

Show Answer
Questions 4

A developer is building an AWS Lambda function that will dynamically generate and send a weekly newsletter to 100.000 users This newsletter contains both static text and images The developer needs a fast and highly scalable place to store the images that will be hyperlinked in the newsletter Where should the developer store these images?

A. Use an Amazon DynamoDB table with DynamoDB Streams and read capacity auto scaling enabled

B. Use an Amazon S3 bucket and S3 Transfer Acceleration to speed up the image download

C. Use an Amazon Aurora database with a public DNS endpoint and auto scaling enabled

D. Use an Amazon S3 backed Amazon CloudFront distribution with a high Time-to-Live (TTL) to maximize caching

Show Answer
Questions 5

A developer is using Amazon S3 as the event source that invokes a Lambda function when new objects are created in the bucket The event source mapping Information Is stored in the bucket notification configuration The developer is working with different versions of the Lambda function, and has a constant need to update notification configuration so that Amazon S3 invokes the correct version

What is the MOST efficient and effective way to achieve mapping Between the S3 event and Lambda?

A. Use a different Lambda trigger

B. Use Lambda environment variables

C. Use a Lambda alias

D. Use Lambda tags.

Show Answer More Questions

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Amazon DVA-C01 exam official information: AWS Certified Developer - Associate showcases knowledge and understanding of core AWS services, uses, and basic AWS architecture best practices, and proficiency in developing, deploying, and debugging cloud-based applications by using AWS.