CompTIA Cloud Essentials+ (CLO-002)Cloud ConceptsEasy
A company is designing a new cloud-native application that needs to serve users across multiple continents with minimal latency. They also want to reduce the load on their origin servers for static content like images and videos. Which networking service should they implement?
- ALoad Balancer
- BDirect Connect/ExpressRoute
- CContent Delivery Network (CDN)
- DVirtual Private Cloud (VPC)
Show answer & explanationAnswer & explanation
Correct answer: C. Content Delivery Network (CDN)
A Content Delivery Network (CDN) caches static content at edge locations geographically closer to users, significantly reducing latency and offloading traffic from origin servers, which directly addresses the company's needs.
Why the other options are wrong
- A. A Load Balancer distributes traffic across multiple servers within a region, improving availability and performance, but doesn't cache content globally.
- B. Direct Connect/ExpressRoute provides a dedicated private connection to the cloud, primarily for hybrid cloud connectivity, not global content distribution.
- D. VPC provides an isolated network within a public cloud, but doesn't inherently optimize global content delivery or reduce origin server load.
Content Delivery Network (CDN)
A geographically distributed network of proxy servers and their data centers. The goal is to provide high availability and performance by distributing the service spatially relative to end-users.
- Caches static content (images, videos, CSS, JS) at 'edge' locations.
- Reduces latency for users by serving content from a nearby server.
- Decreases load on origin servers, improving their performance.
Memory trick: CDN brings content Closer to the User.