Google Professional Cloud Network Engineer Question 8
Select 2Google Cloud PlatformYour company runs a global e-commerce platform hosted on Google Cloud. You need to design a solution that ensures high availability and automatic failover in case of regional outages. The solution must also handle increased traffic during peak shopping seasons. Which combination of strategies should you use?
- A
Deploy your application in multiple regions and use a global external HTTP(S) Load Balancer.
- B
Use a zonal managed instance group (MIG) to deploy application instances across multiple availability zones.
- C
Set up Cloud DNS with weighted round-robin records to distribute traffic between regions.
- D
Enable autoscaling on regional managed instance groups (MIGs) to handle traffic spikes.
- E
Configure a single-region deployment with a regional static IP address to reduce complexity.
Show answer and explanation
Correct answers: A, D
Explanation
For high availability and disaster recovery, deploying across multiple regions ensures redundancy and minimizes the risk of downtime due to regional outages. Using a global external HTTP(S) Load Balancer allows seamless traffic routing to healthy regions. Autoscaling on regional managed instance groups ensures that your application can scale dynamically to handle traffic spikes during peak times. The other options either lack redundancy or fail to meet the requirements for intelligent failover and scalability.
- A. Correct.
Correct: Deploying in multiple regions ensures the application remains highly available even if a single region goes offline. A global external HTTP(S) Load Balancer can intelligently route traffic to the nearest healthy region.
- B. Incorrect.
Incorrect: Zonal managed instance groups limit deployment to a single zone, which does not provide regional redundancy in case of a zone failure.
- C. Incorrect.
Incorrect: While Cloud DNS with weighted round-robin records can distribute traffic, it does not provide intelligent failover capabilities or the ability to route traffic to healthy regions based on proximity or availability.
- D. Correct.
Correct: Enabling autoscaling on regional managed instance groups allows your application to automatically scale in response to increased traffic, ensuring that it can handle peak loads during shopping seasons.
- E. Incorrect.
Incorrect: A single-region deployment does not provide high availability or disaster recovery capabilities in the event of a regional outage, which is a key requirement in this scenario.