Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 843 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Associate SAA-C03

Question #: 843
Topic #: 1

[All AWS Certified Solutions Architect - Associate SAA-C03 Questions]

An ecommerce company is migrating its on-premises workload to the AWS Cloud. The workload currently consists of a web application and a backend Microsoft SQL database for storage.

The company expects a high volume of customers during a promotional event. The new infrastructure in the AWS Cloud must be highly available and scalable.

Which solution will meet these requirements with the LEAST administrative overhead?

A. Migrate the web application to two Amazon EC2 instances across two Availability Zones behind an Application Load Balancer. Migrate the database to Amazon RDS for Microsoft SQL Server with read replicas in both Availability Zones.
B. Migrate the web application to an Amazon EC2 instance that runs in an Auto Scaling group across two Availability Zones behind an Application Load Balancer. Migrate the database to two EC2 instances across separate AWS Regions with database replication.
C. Migrate the web application to Amazon EC2 instances that run in an Auto Scaling group across two Availability Zones behind an Application Load Balancer. Migrate the database to Amazon RDS with Multi-AZ deployment.
D. Migrate the web application to three Amazon EC2 instances across three Availability Zones behind an Application Load Balancer. Migrate the database to three EC2 instances across three Availability Zones.

Show Suggested Answer

Suggested Answer: C 🗳️

by Awsbeginner87 at April 8, 2024, 1:19 a.m.

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LeonSauveterre

5 months, 3 weeks ago

Selected Answer: C

Initially I chose A but then again, "highly available and scalable" should indicate multi az and auto scaling group, so C is the only valid option.

upvoted 1 times

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Scheldon

1 year ago

Selected Answer: C

AnswerC I would de-couple as many elements as possible with appopriate redundancy (HA), hence Auto-Scale in 2 AZ for EC2, Database in Multi-AZ and ALB infront of EC2. It will allow to increase amount of servers in case of need and will prevent from service unavailability in case if something fail ;)

upvoted 3 times

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