Professional Cloud ArchitectManage and provision solution infrastructureEasy
A global e-commerce company is deploying a new web application on Google Cloud. The application will serve users worldwide and requires extremely low latency for content delivery, protection against DDoS attacks, and efficient caching of static assets at the edge. Which Google Cloud service should be used to meet these requirements?
- ANetwork Load Balancer
- BCloud CDN with External HTTP(S) Load Balancing
- CInternal HTTP(S) Load Balancing
- DCloud DNS
Show answer & explanationAnswer & explanation
Correct answer: B. Cloud CDN with External HTTP(S) Load Balancing
Cloud CDN (Content Delivery Network) works with External HTTP(S) Load Balancing to cache content closer to users, reducing latency and offloading origin servers. External HTTP(S) Load Balancing provides global load balancing, DDoS protection, and SSL termination for web applications.
Why the other options are wrong
- A. Network Load Balancer is a pass-through load balancer for TCP/UDP traffic, operating at Layer 4. It does not provide HTTP(S) features, DDoS protection at the application layer, or content caching.
- C. Internal HTTP(S) Load Balancing is for internal services within a VPC network, not for external internet-facing applications and global content delivery.
- D. Cloud DNS is a global DNS service and does not provide content caching, DDoS protection, or load balancing for application traffic.
Cloud CDN with External HTTP(S) Load Balancing
Cloud CDN is Google Cloud's content delivery network for delivering web and video content with low latency. It integrates seamlessly with External HTTP(S) Load Balancing to provide global load distribution, SSL termination, and protection against DDoS attacks.
- Global content caching at edge locations
- Reduces latency and origin server load
- External HTTP(S) Load Balancing provides DDoS protection
- Supports SSL/TLS termination
Memory trick: CDN and External LB make web apps fly and stay safe.