A company is migrating a legacy monolithic application to a microservices architecture on AWS. The legacy application uses a single relational database. The new microservices will use purpose-built databases (DynamoDB, Aurora, ElastiCache). The migration must happen gradually with zero downtime, and both systems must run in parallel during the transition. Which architectural patterns and services should be used? (Select TWO)

Answer options:

A.

Implement the Strangler Fig pattern using Amazon API Gateway to route traffic between the legacy app and new microservices.

B.

Implement a big bang migration over a weekend.

C.

Use AWS Database Migration Service (DMS) to keep the legacy database and new databases in sync during the transition.

D.

Use AWS Application Migration Service (MGN) to refactor the code.

E.

Use Amazon SQS to route HTTP requests to the correct service.

F.

Use AWS Snowball to transfer the database.

How to approach this question

Identify the pattern for gradual modernization.

Full Answer

The Strangler Fig pattern uses an API Gateway to gradually route specific endpoints from the monolith to the new microservices. AWS DMS keeps the underlying databases in sync during this transitional phase.

Common mistakes

Confusing MGN (lift and shift) with modernization patterns.

Question 56 All questions Question 58

Practice the full AWS Solutions Architect Professional SAP-C02 Practice Exam 7

75 questions · hints · full answers · grading

Sign up free Take the exam

More questions from this exam

Q01A global enterprise is designing a multi-region network architecture connecting 50 AWS accounts a...Hard Q02A company is migrating its hybrid network to AWS. They have two 10 Gbps AWS Direct Connect connec...Hard Q03An enterprise has 100 AWS accounts in AWS Organizations. The security team mandates that all Amaz...Medium Q04A financial company requires that all EBS volumes, S3 buckets, and RDS databases be encrypted usi...Easy Q05An enterprise is designing a disaster recovery strategy for a critical application running on Ama...Hard

View all 75 questions →