A network engineer is upgrading a small data center to host several new applications, including server backups that are expected to account for up to 90% of the bandwidth during peak times. The data c

Assigning traffic to a dedicated switch only provides LAN-side isolation and does not control the traffic's egress path over the WAN circuits.

Configuring a new dedicated circuit would be a costly solution, which directly contradicts the question's requirement for an inexpensive update.

Placing backup servers in a dedicated VLAN provides Layer 2 segmentation but does not inherently direct their Layer 3 traffic over a specific WAN circuit.

Advertising a more specific route for the backup traffic's destination IP addresses (e.g., using a /32 prefix for individual servers) over the secondary MPLS circuit ensures routers prioritize this path. This method leverages the longest prefix match principle in routing to steer specific traffic, effectively utilizing the secondary circuit for backups without additional hardware costs.