JN0-664: Service Provider Routing and Switching, ProfessionalDemo

By Juniper · Question Mode

QuestionQ18

OSPF

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You want to use both links between R1 and R2. Because the two links have different bandwidths, you must ensure that they are used as fully as possible.

Which action accomplishes this objective?

  • A Ensure that the metric-out parameter on the Gigabit Ethernet interface is higher than the 10 Gigibit Ethernet interface.
  • B Define a policy to tag routes with the appropriate bandwidth community.
  • C Enable per-prefix load balancing.
  • D Disable multipath.
Explanation

A routing policy that tags routes with the appropriate BGP link-bandwidth community enables weighted equal-cost multipath, so the higher-bandwidth path carries a proportionally greater share of traffic while both paths are used. This mechanism requires multipath and per-packet load balancing; per-prefix load balancing does not support the link-bandwidth attribute.

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