An architect is working on a design to connect a company's main site to several small to medium- sized remote branches. The solution must include redundant WAN links, but the customer has a limited…

Dual-homed WAN MPLS with a single edge router provides redundancy, but MPLS is generally more expensive than Internet links, making it less suitable for a limited budget and potentially more complex for speed upgrades.

Dual-homed Internet connections typically involve two separate ISPs, providing redundancy. A single edge router helps with budget constraints while a site-to-site VPN secures traffic over the public internet. Internet links offer easy speed upgrades (e.g., from 100Mbps to 1Gbps) compared to private MPLS circuits and are generally more cost-effective for small to medium branches.

Dual edge routers add significant cost due to additional hardware and complexity, which goes against the 'limited budget' requirement, and MPLS also incurs higher costs.

Dual edge routers again add significant cost, conflicting with the limited budget, despite a hub-and-spoke VPN topology being a valid design choice.