Google Professional Cloud Network Engineer Question 134
Select 3Google Cloud PlatformYour organization hosts a critical application on Google Cloud that requires high availability and disaster recovery. The application is deployed across two regions: us-central1 and europe-west1. You need to ensure that the on-premises data center has resilient connectivity to both regions to meet the high availability requirements. Which strategies should you implement to achieve this?
- A
Set up two Dedicated Interconnect connections, one terminating in each region, and use Cloud Router to dynamically route traffic.
- B
Use a single Dedicated Interconnect connection to one region and rely on Google's global network to route traffic to the other region.
- C
Deploy two VPN tunnels, one to each region, and configure BGP for dynamic failover.
- D
Deploy a single VPN tunnel to one region and rely on static routing to provide backup connectivity.
- E
Set up Partner Interconnect connections to both regions through different service providers and use Cloud Router for routing.
Show answer and explanation
Correct answers: A, C, E
Explanation
To achieve high availability and disaster recovery connectivity for critical applications, it is essential to have redundant connections to all required regions. Using Dedicated Interconnect or Partner Interconnect connections to different regions provides strong physical redundancy. Cloud Router further enhances this setup by enabling dynamic routing and failover. Alternatively, VPN tunnels with BGP can provide resilient and cost-effective connectivity for high availability. Any solution relying on a single connection or static routing introduces a single point of failure and does not align with best practices.
- A. Correct.
This option ensures high availability by using two Dedicated Interconnect connections to connect directly to each region. Using Cloud Router allows dynamic routing, making traffic failover seamless in case one region's connection goes down.
- B. Incorrect.
While this option leverages Google's global network, a single Dedicated Interconnect connection creates a single point of failure, which does not meet high availability requirements.
- C. Correct.
This option provides resilient connectivity using VPN tunnels to both regions. By configuring BGP, you ensure dynamic failover between the tunnels, which aligns with high availability and disaster recovery best practices.
- D. Incorrect.
A single VPN tunnel to one region with static routing is not resilient and introduces a single point of failure, making it unsuitable for high availability.
- E. Correct.
This option provides redundancy by using Partner Interconnect connections through different service providers to both regions. Cloud Router ensures dynamic failover and traffic management, meeting high availability and disaster recovery requirements.