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NEW QUESTION 40

A company has a two-tier application running on an Amazon EC2 server that handles all of its AWS based e-commerce activity During peak times, the backend servers that process orders are overloaded with requests.

This results in some orders failing to process. A developer needs to create a solution that will re-factor the application.

Which steps will allow for more flexibility during peak times, while still remaining cost-effective? (Select TWO.)

A. Increase the backend T2 EC2 instance sees to xl to handle the largest possible load throughout the year
B. Modify the backend servers to pull from an Amazon SQS queue.
C. Use an Amazon SNS queue to decouple the front-end and backend servers.
D. implement an Amazon SQS queue to decouple the front-end and backend servers
E. Migrate the backend servers to on-premises and pull from an Amazon SNS queue

Answer: C,E

NEW QUESTION 41

A corporate web application is deployed within an Amazon VPC, and is connected to the corporate data center via IPSec VPN. The application must authenticate against the on-premise LDAP server. Once authenticated, logged-in users can only access an S3 keyspace specific to the user.

Which two approaches can satisfy the objectives? Choose 2 answers

A. Develop an identity broker which authenticates against LDAP, and then calls IAM Security Token Service to get IAM federated user credentials. The application calls the identity broker to get IAM federated user credentials with access to the appropriate S3 bucket.
B. The application authenticates against IAM Security Token Service using the LDAP credentials. The application uses those temporary AWS security credentials to access the appropriate S3 bucket.
C. The application authenticates against LDAP, and retrieves the name of an IAM role associated with the user. The application then calls the IAM Security Token Service to assume that IAM Role. The application can use the temporary credentials to access the appropriate S3 bucket.
D. Develop an identity broker which authenticates against IAM Security Token Service to assume an IAM Role to get temporary AWS security credentials. The application calls the identity broker to get AWS temporary security credentials with access to the appropriate S3 bucket.
E. The application authenticates against LDAP. The application then calls the IAM Security Service to login to IAM using the LDAP credentials. The application can use the IAM temporary credentials to access the appropriate S3 bucket.

Answer: A,C

Explanation:

Explanation

https://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_request.html

NEW QUESTION 42

A developer is creating a role to access Amazon S3 buckets To create the role, the developer uses the AWS CLI create-role command. Which policy should be added to allow the Amazon EC2 service to assume the role?

A. Service control policy (SCP)
B. Inline policy
C. Managed policy
D. Trust policy

Answer: D

Explanation:

A JSON policy document in which you define the principals that you trust to assume the role. A role trust policy is a required resource-based policy that is attached to a role in IAM. The principals that you can specify in the trust policy include users, roles, accounts, and services. https://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_terms-and-concepts.html

NEW QUESTION 43

A global company has an application running on Amazon EC2 instances that serves image files from Amazon S3. User requests from the browser are causing high traffic, which results in degraded performance.

Which optimization solution should a Developer implement to increase application performance?

A. Submit a ticket to AWS support to request a rate limit increase for the S3 bucket.
B. Use Amazon CloudFront to serve the content of images stored in Amazon S3.
C. Create multiple prefix in the S3 bucket to increase the request rate
D. Create an Amazon ElastiCache cluster to cache and serve frequently accessed items.

Answer: A

NEW QUESTION 44

Your application is trying to upload a 6 GB file to Simple Storage Service and receive a "Your proposed upload exceeds the maximum allowed object size." error message.

What is a possible solution for this?