Free AWS-Certified-Developer-Associate Exam Dumps

Question 41

Games-R-Us is launching a new game app for mobile devices. Users will log into the game using their existing Facebook account and the game will record player data and scoring information directly to a DynamoDB table.
What is the most secure approach for signing requests to the DynamoDB API?

A. Create an IAM user with access credentials that are distributed with the mobile app to sign the requests
B. Distribute the AWS root account access credentials with the mobile app to sign the requests
C. Request temporary security credentials using web identity federation to sign the requests
D. Establish cross account access between the mobile app and the DynamoDB table to sign the requests

Correct Answer:C

Question 42

Which of the below mentioned options is not a best practice to securely manage the AWS access credentials?

A. Enable MFA for prMleged users
B. Create indMdual IAM users
C. Keep rotating your secure access credentials at regular intervals
D. Create strong access key and secret access key and attach to the root account

Correct Answer:D
It is a recommended approach to avoid using the access and secret access keys of the root account.
Thus, do not download or delete it. Instead make the IAM user as powerful as the root account and use its credentials. The user cannot generate their own access and secret access keys as they are always generated by AWS.
Reference: http://docs.aws.amazon.com/IAM/latest/UserGuide/IAMBestPractices.html

Question 43

Your supervisor has asked you to build a simple file synchronization service for your department. He doesn't want to spend too much money and he wants to be notified of any changes to files by email. What do you think would be the best Amazon service to use for the email solution?

A. Amazon CIoudSearch
B. Amazon Elastic Transcoder
C. Amazon SES
D. Amazon AppStream

Correct Answer:C
File change notifications can be sent via email to users following the resource with Amazon Simple Email Service (Amazon SES), an easy-to-use, cost-effective email solution.
Reference: http://media.amazonwebservices.com/architecturecenter/AWS_ac_ra_fiIesync_08.pdf

Question 44

A user is planning to use the AWS RDS with MySQL. Which of the below mentioned services the user is not going to pay?

A. Data transfer
B. RDS Cloudwatch metrics
C. Data storage
D. I/O requests per month

Correct Answer:B
RDS charges the user on a pay as you go basis. It charges the user based on the instance type, number of hours that the instance is running, data transfer, storage cost as well for the I/O requests. The monitoring is free of cost.
Reference: http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Welcome.html

Question 45

You are writing to a DynamoDB table and receive the following exception:" ProvisionedThroughputExceededException". though according to your Cloudwatch metrics for the table, you are not exceeding your provisioned throughput.
What could be an explanation for this?

A. You haven't provisioned enough DynamoDB storage instances
B. You're exceeding your capacity on a particular Range Key
C. You're exceeding your capacity on a particular Hash Key
D. You're exceeding your capacity on a particular Sort Key
E. You haven't configured DynamoDB Auto Scaling triggers

Correct Answer:C