ExpertHard1 markMultiple Choice
AWS SAP-C02 · Question 17 · Domain 4.2: New Architecture Design
An architect is redesigning a monolithic on-premises application into microservices on AWS. The application currently uses a single relational database. The new architecture will use purpose-built databases. Which pattern allows the gradual migration of features without downtime?
An architect is redesigning a monolithic on-premises application into microservices on AWS. The application currently uses a single relational database. The new architecture will use purpose-built databases. Which pattern allows the gradual migration of features without downtime?
Answer options:
A.
Strangler Fig pattern
B.
Saga pattern
C.
Circuit Breaker pattern
D.
Event Sourcing pattern
How to approach this question
Identify the architectural pattern for incremental modernization.
Full Answer
A.Strangler Fig pattern✓ Correct
Strangler Fig pattern
The Strangler Fig pattern incrementally migrates a legacy system by gradually replacing specific pieces of functionality.
Common mistakes
Confusing microservice transaction patterns (Saga) with migration patterns.
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