CLF-C02 - Cloud Concepts (24% of the exam) - Section 1.2

Explain the benefits of AWS global infrastructure such as speed of deployment, global reach, high availability and elasticity.

Describe how AWS global infrastructure enables rapid deployment of workloads close to end users, supports high availability by distributing resources across independent locations, and provides elasticity to scale capacity up or down without manual intervention. Distinguish the availability benefit from the reach benefit when selecting an architectural approach.

Global reachHigh availabilityElasticitySpeed of deployment

Practice question for this objective

Free sampleCloud Conceptseasy

A software company headquartered in Australia decides to open its product to customers in Japan and Germany. It wants to run its application close to users on each continent by placing copies of the workload in AWS data centres located in those parts of the world. Which benefit of the AWS global infrastructure does this approach demonstrate?

ALoose coupling, which lets each tier of the application fail without affecting the other tiers of the system
BVertical scaling, which lets the company increase the size of a single server to serve more of its users
CEncryption at rest, which keeps the stored user data unreadable while it sits on disk in each location
DGlobal reach, which lets the company run its workloads in AWS locations around the world close to its users Correct

Global reach lets an organisation run workloads in AWS locations worldwide so users are served from nearby infrastructure. AWS operates infrastructure in many parts of the world, so a company can place copies of a workload in Regions near each user base, which is the global reach benefit of the global infrastructure.

Why A is wrong: Loose coupling is a design practice for resilience between components, not the benefit of running workloads near users on other continents.

Why B is wrong: Vertical scaling grows one server's capacity; it does not describe placing workloads in worldwide locations close to users.

Why C is wrong: Encryption at rest protects stored data on disk; it is a security control and not the benefit of serving users worldwide.

Why D is correct: Global reach is the benefit of deploying workloads across worldwide AWS locations so users on each continent are served from nearby infrastructure.

See more CLF-C02 practice questions, answers explained.

Exam traps in Cloud Concepts

Answers that look right on this material and are not. Each one is a distractor from a different question in the CLF-C02 bank for this domain.

Replace several small servers with one very large Amazon EC2 instance in a single location.
Why it is wrong: A single larger instance is a tempting performance fix, but one server in one place is a single point of failure and reduces availability.
Elasticity, because the website can add and remove server capacity automatically as user demand changes throughout the day
Why it is wrong: Elasticity adjusts capacity to match load, but it does not place resources closer to European users, so it does not by itself reduce that latency.
It encrypts every Amazon S3 object at rest, removing the need to manage any encryption keys.
Why it is wrong: Encryption at rest is handled by storage services such as Amazon S3, not by CloudFormation, so this does not relate to automating environment provisioning.

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