Google Professional Cloud Developer Question 27
Single answerGoogle Cloud PlatformYour company is deploying a new web application on Google Cloud that will serve users across multiple continents. To ensure low latency and high availability, you need to select a deployment strategy that aligns with Google Cloud's geographical distribution of services. Which approach should you take?
- A
Deploy the application to a single region and use a Content Delivery Network (CDN) for global users.
- B
Deploy the application in multiple zones within a single region to ensure redundancy and low latency for global users.
- C
Deploy the application across multiple regions and use a global load balancer to distribute traffic.
- D
Deploy the application to a single zone and use a regional load balancer to handle global traffic.
Show answer and explanation
Correct answer: C
Explanation
To serve users across multiple continents with low latency and high availability, it is essential to deploy the application across multiple regions. This approach leverages Google Cloud's geographically distributed infrastructure. A global load balancer is used to intelligently route traffic to the closest region, ensuring optimal performance and providing failover in case a region becomes unavailable.
- A. Incorrect.
This option ensures that global users can access cached content quickly, but it fails to address high availability or redundancy for the application backend itself, as it's limited to a single region.
- B. Incorrect.
Using multiple zones within a single region improves redundancy but does not provide low latency for global users, as all traffic still routes through a single region.
- C. Correct.
This is the correct approach. Deploying across multiple regions ensures low latency for users in different geographical locations, while a global load balancer ensures traffic is efficiently distributed and provides failover capabilities.
- D. Incorrect.
Deploying to a single zone creates a single point of failure and does not meet the requirements for high availability or low latency for global users. A regional load balancer cannot handle global traffic effectively.