AIncorrect
Rehost
Rehost is a strategy that moves an existing application as is to virtual servers on AWS.
This question switches to a different SaaS product, which differs from rehosting the same application, so it is incorrect.
Which migration strategy retires a business application operated in-house and switches to a SaaS product with equivalent functionality?
1 / 1
Select an answer
CorrectD
Explanation
A question asking for the name of the migration strategy that switches to SaaS.
- 1「switches to a SaaS product」Switching to a different commercial product = Repurchase.
- 2「retires」Stop the existing in-house application.
BIncorrect
Refactor
Refactor is a strategy that rebuilds an in-house application to be cloud-native.
This question stops in-house development and switches to a commercial SaaS, which differs from rebuilding, so it is incorrect.
CIncorrect
Relocate
Relocate is a strategy that moves environments such as VMware to AWS as is.
This question is a switch to SaaS, which differs from relocating infrastructure, so it is incorrect.
DCorrect
Repurchase
Correct. Repurchase is a strategy that retires an existing application and switches to a different product, often SaaS. Stopping in-house development and operation in favor of a commercial SaaS reduces the maintenance burden.
Key Takeaway
Repurchase = stop the existing one and switch to a different product (SaaS). Distinguish it from Rehost (move the same app), Refactor (rebuild), and Relocate (move infrastructure).