CLF-C02 Cloud Architecture & Deployment Principles 4

Question 1

A company is migrating from a single large server to the cloud and wants to handle growing traffic. Which scaling strategy adds more instances rather than upgrading existing ones?

Accepted Answer

Horizontal scaling (scaling out)

Answer

Horizontal scaling adds more instances to distribute load, while vertical scaling increases the size/power of existing instances.

Question 2

Which AWS architecture concept uses separate sets of servers to host blue (current) and green (new) versions of an application to enable zero-downtime deployments?

Accepted Answer

Blue/green deployment

Answer

Blue/green deployment maintains two identical environments and shifts traffic from blue (current) to green (new) for zero-downtime releases.

Question 3

What is the primary purpose of an Amazon SQS queue in a cloud architecture?

Accepted Answer

Decoupling application components by buffering messages

Answer

Amazon SQS decouples application components by acting as a message buffer, allowing producers and consumers to operate independently.

Question 4

According to cloud architecture best practices, which approach should be used to handle planned or unplanned downtime of a database?

Accepted Answer

Use Multi-AZ deployment for automatic failover

Answer

Multi-AZ deployments automatically maintain a standby replica in another AZ and failover within minutes if the primary instance fails.

Question 5

A company wants to follow the AWS Well-Architected Framework principle of 'implement observability.' Which combination of services best supports this?

Accepted Answer

Amazon CloudWatch and AWS CloudTrail

Answer

CloudWatch provides metrics and logging while CloudTrail records API calls, together providing comprehensive observability into system health and activity.

(CLF-C02) AWS Certified Cloud Practitioner Practice Test

(CLF-C02) AWS Certified Cloud Practitioner Practice Test

CLF-C02 Cloud Architecture & Deployment Principles 4