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Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 693 discussion

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

Question #: 693
Topic #: 1

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

A company has a web application that includes an embedded NoSQL database. The application runs on Amazon EC2 instances behind an Application Load Balancer (ALB). The instances run in an Amazon EC2 Auto Scaling group in a single Availability Zone.

A recent increase in traffic requires the application to be highly available and for the database to be eventually consistent.

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

A. Replace the ALB with a Network Load Balancer. Maintain the embedded NoSQL database with its replication service on the EC2 instances.
B. Replace the ALB with a Network Load Balancer. Migrate the embedded NoSQL database to Amazon DynamoDB by using AWS Database Migration Service (AWS DMS).
C. Modify the Auto Scaling group to use EC2 instances across three Availability Zones. Maintain the embedded NoSQL database with its replication service on the EC2 instances.
D. Modify the Auto Scaling group to use EC2 instances across three Availability Zones. Migrate the embedded NoSQL database to Amazon DynamoDB by using AWS Database Migration Service (AWS DMS).

Show Suggested Answer

Suggested Answer: D 🗳️

by Andy_09 at Feb. 5, 2024, 4:32 p.m.

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Comments

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LeonSauveterre

6 months, 2 weeks ago

Selected Answer: D

Application Load Balancer (ALB) is better suited for HTTP/HTTPS traffic. A & B are out. Maintaining replication and failover for the embedded database across AZs is frustratingly complex and operationally intensive. Migration to DynamoDB requires initial effort but reduces long-term operational overhead. So D.

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freedafeng

11 months, 2 weeks ago

I honestly don't think you can use db Migration service to migrate an embedding db.

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HTHK

1 year, 1 month ago

DDDDDDDDDDDDDDDDDD

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TruthWS

1 year, 3 months ago

Option D: let focus on HA + Scaling

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Kezuko

1 year, 3 months ago

Selected Answer: D

ASG for application HA + DynamoDB Scale for HA

upvoted 4 times

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rubiteb

1 year, 4 months ago

B as it's highly available and has less operational overhead than D.

upvoted 1 times

dkw2342

1 year, 3 months ago

ALB -> NLB makes no sense and solution lacks HA for the app layer.

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NayeraB

1 year, 4 months ago

But wouldn't migrating an embedded database to a new one introduce operational overhead now and in the future?

upvoted 1 times

MatAlves

9 months, 2 weeks ago

No, the very opposite: "Amazon DynamoDB is a fully managed, serverless, key-value NoSQL database that runs high-performance applications at any scale."

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