Cisco Certified Network Professional (CCNP) Question:

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How is the OSPF cost of an interface calculated?

CCNP Interview Question
CCNP Interview Question

Answer:

By default, the cost of an OSPF interface is 100,000,000/(Interface Bandwidth). The constant 100,000,000 can be changed using the auto-cost reference-bandwidth command.

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What is the purpose of an OSPF virtual link?The following OSPF routes originate in OSPF area 1:

188.14.19.0/28

188.14.19.16/28

188.14.19.32/28

188.14.19.48/28

What is the command to summarize these routes on the ABR between area 1 and the backbone?