A company requires uninterrupted network access to support its critical online services. To meet this requirement, the company is considering redundancy options for their internet connectivity. Which of the following solutions would BEST ensure continuous Internet availability, even if one provider's service is disrupted?
Deploy a single high-bandwidth connection from a highly reliable ISP.
Contract multiple ISPs, each providing a separate physical path into the facility.
Configure automatic failover to swap primary and secondary circuits from the same ISP.
Lease additional lines from the same ISP to increase bandwidth.