Google Professional Cloud Network Engineer Question 9
Select 3Google Cloud PlatformYour company runs a global e-commerce platform hosted on Google Cloud. You need to design a highly available and scalable architecture that ensures minimal downtime and disaster recovery. Traffic is distributed globally, and you want to automatically failover to a secondary region in case the primary region becomes unavailable. Which set of configurations would best meet these requirements?
- A
Use a global external HTTP(S) load balancer with backend services deployed in multiple regions.
- B
Enable health checks on your backend services to detect regional failures and automatically route traffic to healthy regions.
- C
Configure a regional internal load balancer to handle failover between primary and secondary zones within the same region.
- D
Set up Cloud DNS with a failover policy to direct traffic to the secondary region if the primary region is unavailable.
- E
Deploy a single Compute Engine instance in the primary region and configure snapshots for disaster recovery.
Show answer and explanation
Correct answers: A, B, D
Explanation
To design for high availability, failover, disaster recovery, and scale in Google Cloud, you need to leverage a global load balancer for distributing traffic across multiple regions. Health checks ensure that traffic is routed only to healthy backend services. Additionally, Cloud DNS failover policies provide another layer of disaster recovery by redirecting traffic to a secondary region. These configurations together create a robust and scalable architecture that minimizes downtime and supports global traffic distribution.
- A. Correct.
Using a global external HTTP(S) load balancer is essential for distributing traffic across multiple regions and ensuring high availability.
- B. Correct.
Health checks are critical for detecting failures in backend services and enabling the load balancer to route traffic to healthy regions.
- C. Incorrect.
While a regional internal load balancer can provide failover within the same region, it does not support global failover across multiple regions.
- D. Correct.
Cloud DNS with a failover policy can help in disaster recovery by directing traffic to a secondary region when the primary region is unavailable.
- E. Incorrect.
Using a single Compute Engine instance in the primary region with snapshots is not sufficient for high availability or automated failover.