300-420 Question 134
Single answerAn enterprise network is being designed to support a global branch office deployment. The design must ensure high availability, scalability, and optimal performance for applications and services across multiple sites. Which of the following topologies would best meet these requirements?
- A
Hub-and-spoke topology with centralized resources at the hub site
- B
Full-mesh topology between all branch offices
- C
Dual-hub, dual-cloud topology with active-active links
- D
Point-to-point topology between each branch and the data center
Show answer and explanation
Correct answer: C
Explanation
The dual-hub, dual-cloud topology with active-active links is the most suitable choice for enterprise networks requiring high availability, scalability, and optimal performance across multiple sites. This design leverages redundancy and load balancing to ensure continuous service delivery and efficient traffic distribution, making it ideal for global deployments.
- A. Incorrect.
While a hub-and-spoke topology centralizes resources and reduces costs, it can create bottlenecks at the hub and reduce redundancy, making it less optimal for high availability and scalability.
- B. Incorrect.
A full-mesh topology provides excellent redundancy but is not scalable for large global deployments due to the exponential increase in links and complexity.
- C. Correct.
A dual-hub, dual-cloud topology with active-active links provides high availability, redundancy, and scalability. It ensures optimal application performance by distributing traffic efficiently across multiple paths.
- D. Incorrect.
Point-to-point topologies are not scalable for large deployments, as they require direct connections between each branch and the data center, leading to increased complexity and cost.