A company has a Windows-based desktop application that is packaged and deployed to the users' Windows machines. The company recently acquired another…

The goal is to rehost a Windows desktop application for both Windows and Linux users with minimal development effort and simplified user management. Amazon AppStream 2.0 is the ideal service for this scenario. It allows you to install an existing desktop application onto an image without any code modification (rehosting). This image is then used to provision a fleet of instances that stream the application to users' web browsers. This browser-based access works seamlessly on any operating system, including Linux. AppStream 2.0 also includes a built-in user pool feature for simple user management and authentication, directly addressing the requirement for a simplified access method.

A. Amazon WorkSpaces provides a full persistent virtual desktop, which is more than what is needed for a single application. This is less cost-effective and more complex to manage than streaming a single application.

B. This approach requires users to connect via Remote Desktop Protocol (RDP), which is less user-friendly than a browser-based solution, especially for Linux users. Managing an EC2 fleet and RDP access is also more complex than using a managed service like AppStream 2.0.

D. This option involves refactoring and containerizing the application, which is a significant development effort. This directly contradicts the key requirement to "rehost" the application with the "LEAST development effort."

1. AWS Documentation - What Is Amazon AppStream 2.0?: "Amazon AppStream 2.0 is a fully managed application streaming service. You centrally manage your desktop applications on AppStream 2.0 and securely deliver them to any computer. You can easily scale to any number of users across the globe without acquiring

provisioning

and operating hardware or infrastructure." This supports the core functionality described in option C.

Source: AWS Documentation

Amazon AppStream 2.0 Administration Guide

"What Is Amazon AppStream 2.0?".

2. AWS Documentation - User Pools: "The AppStream 2.0 user pool is a managed user directory that you can use to create and manage users... Users in the user pool can sign in from any location and from any supported device by using a web browser." This confirms the simplified

browser-based authentication and access method mentioned in the correct answer.

Source: AWS Documentation

Amazon AppStream 2.0 Administration Guide

"User Pools".

3. AWS Documentation - Migrating to AWS: Best Practices and Strategies: This document outlines the "6 Rs" of migration. The question specifies "rehost

" which is defined as lift-and-shift. AppStream 2.0 fits this model for desktop applications

whereas refactoring (Option D) is a different strategy.

Source: AWS Whitepaper

Migrating to AWS: Best Practices and Strategies

"The 6 R's: 6 Application Migration Strategies".

4. AWS Documentation - Comparing Amazon WorkSpaces and Amazon AppStream 2.0: "Choose AppStream 2.0 if you want to provide access to a specific application or a set of applications... Choose WorkSpaces if your users need a persistent desktop experience". This clarifies that for a single application

AppStream 2.0 is the more appropriate service.

Source: AWS Documentation

Amazon WorkSpaces Administration Guide

"Amazon WorkSpaces FAQs"

section on comparing WorkSpaces and AppStream 2.0.