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Question 172

A developer has written an application that runs on Amazon EC2 instances. The developer is adding functionality for the application to write objects to an Amazon S3 bucket Which policy must the developer modify to allow the instances to write these objects?

A.The 1AM policy that is attached to the EC2 instance profile role
B.The Amazon VPC endpoint policy
C.The session policy that is applied to the EC2 instance role session
D.The AWS Key Management Service (AWS KMS) key policy that is attached to the EC2 instance profile role.

Question 173

Company
C is currently hosting their corporate site in an Amazon S3 bucket with Static Website Hosting enabled.
Currently, when visitors go to http://www.companyc.com the index.html page is returned. Company C now would like a new page welcome.html to be returned when a visitor enters http://www.companyc.com in the browser.
Which of the following steps will allow Company C to meet this requirement? Choose 2 answers

A.Upload an html page named welcome.html to their S3 bucket
B.Create a welcome subfolder in their S3 bucket
C.Set the Index Document property to welcome.html
D.Move the index.html page to a welcome subfolder
E.Set the Error Document property to welcome.html

Question 174

A Developer is creating a template that uses AWS CloudFormation to deploy an application. This application is serverless and uses Amazon API Gateway, Amazon DynamoDB, and AWS Lambda.
Which tool should the Developer use to define simplified syntax for expressing serverless resources?

A.An AWS serverless application model
B.AWS serverless express
C.A CloudFormation serverless plugin
D.CloudFormation serverless intrinsic functions

Question 175

An application takes 40 seconds to process instructions received in an Amazon SQS message.
Assuming the SQS queue is configured with the default VisibilityTimeout value, what is the BEST way, upon receiving a message, to ensure that no other instances can retrieve a message that has already been processed or is currently being processed?

A.Use the ChangeMessageVisibility API to increase the VisibilityTimeout, then use the DeleteMessage API to delete the message.
B.Use the DeleteMessage API call to delete the message from the queue, then call DeleteQueue API to remove the queue.
C.Use the ChangeMessageVisibility API to decrease the timeout value, then use the DeleteMessage API to delete the message.
D.Use the DeleteMessageVisibility API to cancel the VisibilityTimeout, then use the DeleteMessage API to delete the message.

Question 176

An application running on Amazon EC2 instances must access objects within an Amaon S3 busket that are encrypted using server-side encryption using AWS KMS encryption keys (SSE-KMS). The application must have access to the customer master key (CMK) to decrypt the objects.
Which combination of steps will grant the application access? (Select TWO.)

A.Write an S3 bucket policy that grants the bucket access to the key.
B.Grant access to the key in the IAM EC2 role attached to the application's EC2 instances.
C.Write a key policy that enables IAM policies to grant access to the key.
D.Grant access to the key in the S3 bucket's ACL
E.Create a Systems Manager parameter that exposes the KMS key to the EC2 instances.