AZ-900 Describe cloud concepts Practice Question
What does 'geo-distribution' mean as a benefit of cloud computing?
⚠ Common exam trap
A common mix-up: candidates confuse 'geo-distribution' with 'high availability' or 'scalability', but geo-distribution specifically focuses on the physical placement of datacenters around the world to reduce latency, not on automatic scaling or fault recovery within a single region.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Having datacenters around the world to serve users with low latency
Geo-distribution in cloud computing refers to the global footprint of a cloud provider's infrastructure, with datacenters deployed across multiple geographic regions. This allows applications to be hosted closer to end users, reducing network latency and improving the user experience. It also supports data residency requirements and disaster recovery by replicating data across regions.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The ability to automatically scale resources up and down
Why it's wrong here
This is a core characteristic of cloud computing related to on-demand resource provisioning and demand-based scaling, not geographic distribution. Elasticity allows resources to increase during peak load and decrease during off-peak, optimizing cost and performance. While valuable, it doesn't address user latency or data residency across regions.
- ✓
Having datacenters around the world to serve users with low latency
Why this is correct
Deploying workloads across multiple Azure regions brings data and applications closer to users, reducing round-trip latency and improving response times. It also supports disaster recovery and complies with data residency and sovereignty requirements by keeping data within specific geopolitical boundaries. This precisely defines geo-distribution: using a global network of datacenters to serve a distributed user base.
- ✗
The ability to recover from hardware failures automatically
Why it's wrong here
Automatically recovering from hardware failures describes resilience features like availability zones and fault domains, which ensure service continuity within a single region. This is about redundancy and failover mechanics, not geographic spread. Although geo-redundant backup can aid recovery, the ability to recover from local hardware faults doesn't imply global distribution.
- ✗
Paying only for what you consume
Why it's wrong here
This refers to the consumption-based pricing model in which customers pay only for actual usage, such as compute hours, storage, or bandwidth, aligning costs directly with demand. It is a financial characteristic of cloud services rather than an architectural property of geo-distribution. While pricing applies globally, it says nothing about where resources are deployed or how latency is minimized.
Go deeper
Related to this question
Learn chapter
What is Cloud Computing?
Key term
Cloud computing
Cloud computing is the on-demand delivery of IT resources over the internet, allowing users to access computing power, storage, and applications without owning physical hardware.
Key term
Data residency
Data residency is the physical or geographical location where an organization's data is stored and processed, often subject to local laws.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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