INTRODUCTION
In the last week of this course, you will find that this week emphasizes the “Migrate and Modernize” phase of the migration framework. In Week 4, you will learn about specific types of component migration and the services that support their migrations: AWS Application Migration Service, AWS Database Migration Service, AWS DataSync, AWS Storage Gateway, and the AWS Snow Family. The week rounds off with additional resources for self-paced AWS studies.
Learning Objectives
- Explain the AWS Snow Family.
- Clarify the difference between migrating applications and databases.
- Appreciate the AWS Schema Conversion Tool (AWS SCT).
WEEK 4 QUIZ
1. Which of the following is one of the 7Rs of migration?
- Reautomate
- Replatform (CORRECT)
- Reanimate
- Reallocate
Correct: “Seven ways to migrate applications to aws cloud can be said as refactor, replatform, repurchase, rehost, relocate, retain, and retire.”
2. Which AWS service is used for a one-time migration of a large amount of data?
- AWS Direct Connect
- AWS Snow Family (CORRECT)
- Virtual private network (VPN)
- Amazon DynamoDB
Correct: “Transferring data in Petabytes with Snow Family Services to and from AWS.”
3. Which AWS service tracks the overall progression of the migration process?
- AWS Control Tower
- AWS CloudFormation
- AWS Migration Hub (CORRECT)
- AWS Database Migration Service (AWS DMS)
Correct: AWS Migration Hub is the unifying point for migrating and modernizing with AWS, where you find everything required to expedite and simplify your journey.
4. Which service creates standardized application templates that can be deployed by the end user?
- AWS Systems Manager
- AWS Service Catalog (CORRECT)
- Amazon CloudFront
- AWS Migration Hub
Correct: “AWS Service Catalog, which facilitates the creation and management of infrastructure-as-code (IaC) templates that are authorized for use on AWS, allows end users to discover self-service cloud resources that have been approved.”
5. What is one benefit of using AWS Database Migration Service (AWS DMS)?
- AWS DMS only supports migrating MySQL databases
- AWS DMS only supports homogeneous migrations
- AWS DMS allows the source database to remain fully operational during migration. (CORRECT)
- AWS DMS does not support heterogeneous migrations.
Correct: “This is intended to allow fast and secure transfer of databases to AWS using AWS DMS. During migration, the source database remains completely operable, thus minimizing downtime for all applications dependent on the database.”
FINAL ASSESSMENT
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: Rehosting allows applications to move into the cloud without requiring any modifications: their existing structure is maintained and functionality preserved while benefits of cloud capabilities are made available.
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
- 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: It is all-important at the early migration planning phase to identify the migration path for a service by evaluating your on-premises resources and determining which of those will be migrated to the cloud.
Correct: It is equally important to communicate the migration plan to all stakeholders as successful migrations will demand substantial involvement from different segments of the business.
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: The AWS infrastructure that supports all the services provided in the AWS Cloud is a responsibility of AWS. The customer secures his or her data, manages networks and firewalls, performs identity and access management, and, depending on the service, manages operating systems and applications. Refer to the Shared Responsibility Model for details on the subject.
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: “AWS Prescriptive Guide To Accelerate Cloud Migration Projects Provides the Proven Strategy, Guide, and Paradigm for Modernization and Optimization Projects to Its Customers.”
5. Which of the following is a stage in the assessing process?
- Rebuild
- Foundation (CORRECT)
- Re-evaluation
- Mitigation
Correct: When any organization decides to go for a large-scale migration to AWS, then there would be four stages of adoption, viz., Project, Foundation, Migration, and Reinvention, through which it will pass.”
6. Which AWS Migration Evaluator tool is designed to provide visibility into inventory and resource utilization data with a high level of accuracy?
- Mobilization assessment
- Inventory discovery (CORRECT)
- Content evaluation
- Application discovery
Correct: The Migration Evaluator is an agentless collector that is used to collect information on existing inventory and resource utilization. To know more about this fact, visit the Migration Evaluator Resources page.
7. What does AWS Migration Hub provide?
- A single place to track migrations (CORRECT)
- A single place to build AWS CloudFormation templates
- A bucket for AWS CloudTrail logs
- A single place to manage Amazon CloudWatch metrics
Correct: Migration Hub by AWS can be described as an area where numerous existing servers can be discovered, migration projects can be planned and tracked for each application along the migration path.
8. What is a requirement for doing an agentless installation of the AWS Application Discovery Service Agent?
- Using VMware vCenter (CORRECT)
- Using Lambda functions
- Using serverless servers on premises
- Using Amazon Elastic Compute Cloud (Amazon EC2) instances
Correct: The AWS Agentless Discovery Connector is a VMware appliance for collecting information from VMware virtual machines (VMs) only. It is installed as a VM in your VMware vCenter Server environment through the use of an Open Virtualization Archive (OVA) file.
9. Which networking service transfers large, ongoing amounts of data between a customer’s data center and the cloud?
- AWS Direct Connect (CORRECT)
- AWS Snowmobile
- Virtual private network (VPN)
- Internet gateway
Correct: AWS Direct Connect is a service that enables the connection between a customer’s internal network and an AWS Direct Connect location by using a standard Ethernet fiber-optic cable. This connection will allow establishment of virtual interfaces directly to public AWS services or Amazon VPC, clearing the route to the Internet service providers in the network path.
10. What is a task that is performed by AWS Application Discovery Service?
- Launch replacement applications
- Expand the size of Amazon Simple Storage Service buckets
- Organize instances into application groups (CORRECT)
- Remove unwanted resources
Correct: When organizing data on today server with applications for better AWS migration planning, reports of server data migrate onto AWS Application Discovery Service.
11. What is a task that is performed by AWS Application Migration Service?
- Create test environments for an application (CORRECT)
- Migrate databases to Amazon Relational Database Service (Amazon RDS)
- Create a map of application dependencies
- Migrate applications into containers
Correct: Hence, even before using the AWS Application Migration Service, ensure that your environments are properly prepared and not configured at all.
12. What is the goal of the mobilize phase in a migration?
- Migrate your applications
- Migrate your data and evaluate your applications
- Create a migration plan and refine your business case (CORRECT)
- Create mobile-compatible applications to prepare for modernization
Correct: However, another approach to mobilizing an organization is to try and migrate business applications; such an approach should be viewed as equally an opportunity to start setting up the tools, processes, and culture that will be used to drive large-scale migration efforts within the organization.
13. Which service automatically collects and presents detailed information about application dependencies and utilization?
- AWS CloudTrail
- AWS Direct Connect
- AWS Application Discovery Service (CORRECT)
- Amazon Relational Database Service
Correct: The ‘Application Discovery Service’ of Amazon Web Services is a service offered to enterprise customers when planning their migration projects by data collection from on-premises data centers.
14. Which service creates standardized application templates that can be deployed by the end user?
- AWS Systems Manager
- AWS Service Catalog (CORRECT)
- Amazon CloudFront
- AWS Migration Hub
Correct: AWS Service Catalog allows you to create and manage infrastructure as code templates that are pre-approved for use on AWS. It allows users to easily discover and deploy approved self-service cloud resources.
15. What is one benefit of using AWS Database Migration Service (AWS DMS)?
- AWS DMS only supports migrating MySQL databases
- AWS DMS only supports homogeneous migrations
- AWS DMS allows the source database to remain fully operational during migration. (CORRECT)
- AWS DMS does not support heterogeneous migrations.
Correct: By utilizing AWS Database Migration Service (DMS), a fast and secure migration can be made for databases into AWS. At this point, the source database remains functional with no downsizing thus minimizing any downtime for connected applications.
16. Which service transfers data from physical tapes to virtual tapes in AWS, and does not require changing existing backup workflows?
- AWS Storage Gateway Volume Gateway
- AWS Storage Gateway Tape Gateway (CORRECT)
- AWS Storage Gateway File Gateway
- Amazon Elastic Block Store (Amazon EBS)
Correct: Tape Gateway can replace physical tapes in the on-premises environment with virtual tapes in AWS without the need to change any of your existing backup workflows.
17. Which of the following is a collection of devices that are primarily used for migrating data between environments, such as moving data from on-premises environments into the AWS Cloud?
- AWS Transfer Family
- Amazon Elastic Compute Cloud (Amazon EC2) instance types
- AWS Snow Family (CORRECT)
- AWS management and governance services
Correct: AWS snow family is a set of physical devices that help transfer large data from and to the cloud without network connectivity.
18. Which AWS service tracks the overall progression of the migration process?
- AWS Control Tower
- AWS CloudFormation
- AWS Migration Hub (CORRECT)
- AWS Database Migration Service (AWS DMS)
Correct: We are now showing a new destination for cloud migration and modernization within AWS Migration Hub documents. A suite of tools will now be available to you as you continue to accelerate and simplify your journey to AWS.
19. Which of the following is one of the 7Rs of migration?
- Reautomate
- Replatform (CORRECT)
- Reanimate
- Reallocate
Correct: The core migration techniques employed to move applications into the AWS Cloud are aptly termed as the 7 Rs of migration strategies: refactor, replatform, repurchase, rehost, relocate, retain, and retire.
CONCLUSION
TBW