ExpertMedium1 markMultiple Choice
GCP PCA · Question 24 · Domain 1: Designing and Planning a Cloud Solution Architecture
You are migrating a monolithic application to microservices on GKE. You want to route traffic gradually from the legacy on-prem system to the new microservices, service by service, without downtime. Which migration pattern should you use?
You are migrating a monolithic application to microservices on GKE. You want to route traffic gradually from the legacy on-prem system to the new microservices, service by service, without downtime. Which migration pattern should you use?
Answer options:
A.
Lift and Shift
B.
Strangler Fig Pattern
C.
Blue/Green Deployment
D.
Canary Release
How to approach this question
Identify the architectural pattern for gradual monolith modernization.
Full Answer
B.Strangler Fig Pattern✓ Correct
Strangler Fig Pattern
The Strangler Fig pattern involves placing a routing facade in front of the legacy app and gradually routing specific API calls to new microservices until the monolith is retired.
Common mistakes
Confusing deployment strategies (Blue/Green) with architectural migration patterns.
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