CV0-002 · Question #494
A real-time video-streaming company is determining the best cloud provider for high network performance, availability, and reliability requirements for the company's all-in cloud strategy. The new ser
The correct answer is C. The cloud provider is available in three availability zones, the average RTT is below. For a real-time video-streaming company requiring high network performance, availability, and reliability that can survive regional disruptions without downtime, deploying services across multiple availability zones within a cloud region with low latency is the best solution.
Question
A real-time video-streaming company is determining the best cloud provider for high network performance, availability, and reliability requirements for the company's all-in cloud strategy. The new service should survive any regional disruption without any customer downtime. Which of the following is the BEST solution?
Options
- AThe cloud provider is available in two regions, and it provides high SLA. The maximum
- BThe cloud provider offer and hybrid solution, in three regions with maximum RTT, is
- CThe cloud provider is available in three availability zones, the average RTT is below
- DThe cloud provider is available in two regions. The average RTT is below 50ms, and
How the community answered
(57 responses)- A7% (4)
- B12% (7)
- C56% (32)
- D25% (14)
Why each option
For a real-time video-streaming company requiring high network performance, availability, and reliability that can survive regional disruptions without downtime, deploying services across multiple availability zones within a cloud region with low latency is the best solution.
While two regions provide disaster recovery, it does not inherently guarantee surviving regional disruption without any customer downtime if the disruption affects multiple zones within a single region, or if failover introduces downtime; additionally, the choice is incomplete.
A hybrid solution contradicts an 'all-in cloud strategy', and 'maximum RTT' being high would be detrimental to real-time streaming performance; additionally, the choice is incomplete.
A cloud provider's availability in multiple availability zones within a region ensures high availability and fault tolerance, as it distributes services across isolated fault domains to withstand localized disruptions without customer downtime. The requirement for an average RTT below 50ms ensures the low latency necessary for real-time video streaming performance.
Two regions are primarily for disaster recovery, but to survive 'any regional disruption without any customer downtime' typically requires active-active setups or robust in-region fault tolerance (like availability zones), and the choice is incomplete.
Concept tested: Cloud availability, fault tolerance, and network performance
Source: https://learn.microsoft.com/en-us/azure/architecture/framework/resiliency/overview#availability-zones
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