350-401 Question 44
Single answerAn enterprise has recently migrated to an SD-WAN solution to enhance its network performance and reduce costs. However, the IT team reports limitations in controlling application performance due to unpredictable internet conditions. Which benefit or limitation of SD-WAN is being described in this scenario?
- A
SD-WAN provides centralized management, enabling efficient policy enforcement across the network.
- B
SD-WAN depends on the underlying transport, which can lead to performance issues with unpredictable internet connections.
- C
SD-WAN improves application performance by using dynamic path selection and application-aware routing.
- D
SD-WAN eliminates the need for MPLS connections, significantly reducing costs.
Show answer and explanation
Correct answer: B
Explanation
The scenario highlights a limitation of SD-WAN solutions: their reliance on the underlying transport. While SD-WAN improves efficiency and performance in many ways, it cannot overcome the inherent instability of unpredictable internet connections, which can impact application performance. Understanding such limitations is critical when deploying SD-WAN in real-world environments.
- A. Incorrect.
While centralized management is a key benefit of SD-WAN, it does not address the issue of unpredictable internet conditions affecting application performance.
- B. Correct.
SD-WAN relies on the underlying transport, such as broadband internet. If the transport is unstable or unpredictable, SD-WAN cannot fully mitigate performance issues, which is the limitation being described in the scenario.
- C. Incorrect.
Although SD-WAN does improve application performance using advanced features like dynamic path selection, this benefit is diminished if the underlying transport is unreliable.
- D. Incorrect.
SD-WAN can reduce costs by leveraging broadband instead of MPLS, but this does not directly address the described limitation of application performance issues caused by internet unpredictability.