Labour Day Special - Limited Time 65% Discount Offer - Ends in 0d 00h 00m 00s - Coupon code: top65certs

Vce DVA-C01 Questions Latest

Page: 10 / 23
Total 608 questions

AWS Certified Developer Associate Exam Questions and Answers

Question 37

A company wants to migrate its web application to AWS and leverage Auto Scaling to handle pear workloads.

The Solutions Architect determined that the best metric for an Auto Scaling event is the number of concurrent users.

Based on this information, what should the Developer use to autoscale based on concurrent users?

Options:

A.

An Amazon SNS topic to be triggered when a concurrent user threshold is met

B.

An Amazon Cloudwatch Networkin metric

C.

Amazon CloudFront to leverage AWS Edge Locations

D.

A Custom Amazon CloudWatch metric for concurrent users.

Question 38

An application overwrites an object in Amazon S3, and then immediately reads the same object. Why would the application sometimes retrieve the old version of the object?

Options:

A.

S3 overwrite PUTS are eventually consistent, so the application may read the old object.

B.

The application needs to add extra metadata to label the latest version when uploading to Amazon S3.

C.

All S3 PUTS are eventually consistent, so the application may read the old object.

D.

The application needs to explicitly specify latest version when retrieving the object.

Question 39

If an application is storing hourly log files from thousands of instances from a high traffic web site, which naming scheme would give optimal performance on S3?

Options:

A.

Sequential

B.

instanceID_log-HH-DD-MM-YYYY

C.

instanceID_log-YYYY-MM-DD-HH

D.

HH-DD-MM-YYYY-log_instanceID

E.

YYYY-MM-DD-HH-log_instanceID

Question 40

A Developer created a Lambda function for a web application backend. When testing the Lambda function from the AWS Lambda console, the Developer can see that the function is being executed, but there is no log data being generated in Amazon CloudWatch Logs, even after several minutes.

What could cause this situation?

Options:

A.

The Lambda function does not have any explicit log statements for the log data to send it to CloudWatch Logs.

B.

The Lambda function is missing CloudWatch Logs as a source trigger to send log data.

C.

The execution role for the Lambda function is missing permissions to write log data to the CloudWatch Logs.

D.

The Lambda function is missing a target CloudWatch Log group.

Page: 10 / 23
Total 608 questions