CRT Cloud Computing & Infrastructure 4

Question 1

What distinguishes a stateless application from a stateful one in cloud architecture?

Accepted Answer

Stateless apps do not retain client session data between requests

Answer

Stateless applications treat each request independently without storing session data locally, making them easy to scale horizontally.

Question 2

Which AWS service provides a fully managed message queue for decoupling microservices?

Accepted Answer

Amazon SQS

Answer

Amazon SQS (Simple Queue Service) is a fully managed message queuing service that enables decoupled, asynchronous communication between components.

Question 3

What is the purpose of a subnet mask in cloud virtual network configuration?

Accepted Answer

To define which portion of an IP address identifies the network vs. the host

Answer

A subnet mask divides an IP address into the network prefix and host identifier, determining the size and range of the subnet.

Question 4

Which cloud concept describes running identical infrastructure across multiple regions to serve traffic to the nearest users?

Accepted Answer

Multi-region active-active deployment

Answer

An active-active multi-region deployment runs live workloads simultaneously in multiple geographic regions, routing users to the closest healthy region.

Question 5

What does the term 'lift and shift' mean in the context of cloud migration?

Accepted Answer

Moving applications to the cloud with minimal or no code changes

Answer

Lift and shift (rehosting) moves applications to cloud VMs as-is, without re-architecting them to leverage cloud-native capabilities.

(CRT) Certified Retail Tobacconist Practice Test

(CRT) Certified Retail Tobacconist Practice Test

CRT Cloud Computing & Infrastructure 4