INTRODUCTION
Migration: The first week of this course, which forms a short introduction to the concept before delving into some background reading material, also presents the outline of the rest of the course. Then you get to learn why migration is an important subject, the different types of migration, and the three-phase migration structure. You will also explore tools that can assist you in understanding migrations and how to plan them, such as AWS Prescriptive Guidance.
Learning Objectives:
- Define what migration is
- Identify reasons for migration and discuss key considerations when moving to the cloud
- Learn about AWS Prescriptive Guidance.
WEEK 1 QUIZ
1. What is an example of rehosting an application?
- Before moving an application to the cloud, the application is rewritten in a new programing language.
- During a migration, older applications are discovered. They are no longer needed and can be turned off.
- A containerized application can be moved from on premises to the cloud without making any changes.
- All on-premises applications and resources can be easily moved to the cloud except for the load balancers. The existing load balancers are replaced by Elastic Load Balancing (ELB) load balancers. (CORRECT)
Correct: With rehosting (also called lift and shift), applications are moved without change to the cloud. This is how organizations quickly transfer their existing infrastructure and applications to the cloud while maintaining the current architecture and enjoying cloud capabilities such as scalability and cost savings-live plus application unchanged.
2. Which of the following are steps in creating a migration plan? [Choose TWO.]
- Creating a reverse migration plan back to the data center
- Creating the shortest possible migration timeline to encourage a faster migration
- Increasing on-premises capacity through hardware acquisition
- Determining service migration path (CORRECT)
- Communicating your plan to coworkers (CORRECT)
Correct: We need to assess the on-premise resources and determine which of these must move to the cloud in order to define the service migration path for the upcoming phases in the migration planning.
Correct:The first step in the whole approach would be to plan very well for the transition. That means informing stakeholders and getting the required involvement of the different business arms to support the transition.
3. Which statement about the AWS shared responsibility security model is TRUE?
- AWS is responsible for security of the cloud, and the customer is responsible for security in the cloud. (CORRECT)
- Security is a responsibility fully shared between the AWS Partners and the customer.
- Security is entirely the responsibility of AWS, and is verified by auditors.
- Security is the shared responsibility of the customer and their chosen third-party security providers.
Correct: AWS takes responsibility for securing infrastructure, which lays a foundation for all the services in the cloud. But then again customers have their own version of what they had to care about, as they would have to take care of data, network and firewall management, identity and access management, and, depending on service; operating systems and applications would also have to be managed. To get the more details go to Shared Responsibility Model: https://aws.amazon.com/compliance/shared-responsibility-model/.
4. What does AWS Prescriptive Guidance provide to customers?
- A fully automated migration tool
- Strategies, methodologies, and frameworks for cloud migration and modernization (CORRECT)
- Direct access to the AWS Migration team
- A single location to inventory assets and track migration of applications
Correct: Amazon Web Services prescriptive guidance is such that it details the programs, processes, and recommendations that would speed up customer’s migration to-, modernization in- and optimization of use of the cloud services.
5. What are the three phases of the AWS migration process?
- Rehost, replatform, retire
- Track, build, migrate
- Assess, mobilize, migrate and modernize (CORRECT)
- Track, mobilize, rehost
Correct: Migrate to AWS: Assess, Mobilize, and Migrate Modernize. In the assessment phase, customers assess organizations for readiness to cloud operations. The mobilize phase allows customers to create a migration plan along with fine-tuning their business case. Migrate and modernize includes designing, migrating, and validating every application.
CONCLUSION
TWB