AWS Solutions Architect Cloud Architecture & Design 3

Question 1

A company needs to migrate a 50 TB on-premises Oracle database to AWS with minimal downtime. Which combination of services best supports this?

Accepted Answer

AWS Snowball Edge + AWS Database Migration Service (DMS)

Answer

Snowball Edge transfers the bulk data offline, and DMS handles ongoing change data capture replication to minimize cutover downtime.

Question 2

Which AWS Well-Architected pillar focuses on avoiding unnecessary costs and ensuring systems deliver business value at the lowest price point?

Accepted Answer

Cost Optimization

Answer

The Cost Optimization pillar covers understanding and controlling where money is being spent, selecting the right pricing model, and eliminating waste.

Question 3

An architect needs to deliver static assets globally with the lowest possible latency and must protect against DDoS attacks at no extra cost. Which solution is best?

Accepted Answer

Amazon CloudFront with AWS Shield Standard

Answer

CloudFront caches content at edge locations worldwide, and AWS Shield Standard is automatically included with CloudFront at no additional cost, mitigating common DDoS attacks.

Question 4

A Lambda function must securely retrieve a database password that is automatically rotated every 30 days. What is the recommended approach?

Accepted Answer

Retrieve the password at runtime from AWS Secrets Manager

Answer

AWS Secrets Manager supports automatic rotation and provides a managed API for retrieving secrets at runtime, making it the best fit for rotating database credentials.

Question 5

A company has a legacy application that can only scale vertically. Which EC2 feature allows changing the instance type with the least disruption?

Accepted Answer

EC2 instance type change via Stop-Modify-Start

Answer

Stopping an EC2 instance, modifying its instance type in the console or CLI, and restarting it is the direct way to vertically scale a single instance.

AWS Practice Test

AWS Practice Test

AWS Solutions Architect Cloud Architecture & Design 3