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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).
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Suggested Answer: D 🗳️
by Andy_09 at Feb. 5, 2024, 4:32 p.m.
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LeonSauveterre
3 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.
upvoted 2 times
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freedafeng
8 months, 1 week ago
I honestly don't think you can use db Migration service to migrate an embedding db.
upvoted 1 times
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HTHK
10 months, 3 weeks ago
DDDDDDDDDDDDDDDDDD
upvoted 1 times
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TruthWS
1 year ago
Option D: let focus on HA + Scaling
upvoted 1 times
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Kezuko
1 year ago
Selected Answer: D
ASG for application HA + DynamoDB Scale for HA
upvoted 4 times
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rubiteb
1 year, 1 month ago
B as it's highly available and has less operational overhead than D.
upvoted 1 times
dkw2342
1 year ago
ALB -> NLB makes no sense and solution lacks HA for the app layer.
upvoted 1 times
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NayeraB
1 year, 1 month ago
But wouldn't migrating an embedded database to a new one introduce operational overhead now and in the future?
upvoted 1 times
MatAlves
6 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."
upvoted 1 times
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1Alpha1
1 year, 1 month ago
Selected Answer: D
DynamoDB + Modifying the Auto Scaling group
upvoted 2 times
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Cali182
1 year, 1 month ago
Selected Answer: D
Dynamo DB presents more advantages, because it would need less administrative effort
upvoted 2 times
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Andy_09
1 year, 1 month ago
The correct option should be D
upvoted 4 times
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