200-301: Cisco Certified Network AssociateDemo

Question

A network engineer is upgrading a small data center to support several new applications, including server backups that are expected to use as much as 90% of the bandwidth during peak periods.

The data center connects to the MPLS provider by way of a primary circuit and a secondary circuit.

How can the engineer update the data center inexpensively so that backup-related traffic does not saturate the primary circuit?

A Assign traffic from the backup servers to a dedicated switch.
B Place the backup servers in a dedicated VLAN.
C Advertise a more specific route for the backup traffic via the secondary circuit.
D Configure a dedicated circuit for the backup traffic.

Explanation

Advertising a more specific route for the backup traffic over the secondary circuit is the least expensive way to keep backup flows off the primary MPLS link. Routing prefers the longest-match, more specific prefix, so the backup traffic can be steered to the secondary circuit while other traffic continues to use the primary path. A separate switch or VLAN only changes local segmentation and does not by itself control which WAN circuit the traffic uses, and adding a dedicated circuit increases cost unnecessarily.

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Configure Route Selection for Routers

200-301: Cisco Certified Network AssociateDemo

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