200-301 Question 54
Single answerAn enterprise network is expanding its operations to multiple branch locations across the country. The company requires reliable, low-latency connectivity between branches, as well as secure communication over the public internet to reduce costs. Which WAN solution would best meet these requirements?
- A
Leased Line
- B
MPLS (Multiprotocol Label Switching)
- C
Site-to-Site VPN over the Internet
- D
Dial-up Connection
Show answer and explanation
Correct answer: B
Explanation
MPLS is the most appropriate WAN solution for this scenario as it provides reliable and low-latency connections between branch locations, ensuring high performance. Additionally, it supports Quality of Service (QoS) for prioritizing critical traffic and is scalable for enterprise needs. While Site-to-Site VPN is cost-effective, it lacks the reliability and latency guarantees required for this use case.
- A. Incorrect.
Leased Lines provide high reliability and low latency but are very expensive, making them less cost-effective for connecting multiple remote branches.
- B. Correct.
MPLS offers reliable, low-latency connections between branches with Quality of Service (QoS) support and is often used for enterprise WANs. It is a cost-effective solution compared to leased lines for connecting multiple locations.
- C. Incorrect.
Site-to-Site VPN over the Internet is secure and cost-effective but does not guarantee low latency or high reliability, as it depends on the public internet which is prone to congestion.
- D. Incorrect.
Dial-up Connections are outdated, have very low speeds, and are not a viable option for enterprise-grade WAN connectivity.