CompTIA Cloud Essentials+ (CLO-002)Business Principles of Cloud EnvironmentsHard
A global e-commerce company is planning to deploy its customer-facing application in the cloud. They need to ensure that the application remains highly available and offers low latency to users across different continents. Which cloud capability is MOST crucial for achieving these requirements?
- ABroad network access
- BOn-demand self-service
- CGlobal reach with multiple regions and availability zones
- DElasticity
Show answer & explanationAnswer & explanation
Correct answer: C. Global reach with multiple regions and availability zones
Global reach with multiple regions and availability zones allows an application to be deployed geographically closer to users, reducing latency. It also enables redundancy across different physical locations, ensuring high availability even if an entire region or data center experiences an outage.
Why the other options are wrong
- A. Broad network access simply means services are available over the network, not specifically optimized for global low latency or high availability across geographies.
- B. On-demand self-service allows users to provision resources without human interaction, a core cloud characteristic but not directly about global availability/latency.
- D. Elasticity allows resources to scale up or down, which supports availability but doesn't inherently address global low latency.
Global Reach with Regions/Availability Zones
Cloud providers offer infrastructure distributed across multiple geographic regions, each containing several isolated availability zones, to ensure high availability and low-latency access globally.
- Regions are distinct geographic areas (e.g., US East, Europe West).
- Availability Zones are isolated locations within a region, connected by low-latency links.
- Critical for disaster recovery, business continuity, and global performance.
Memory trick: Global regions for global reach and resilience.