200-301: Cisco Certified Network AssociateDemo

By Cisco · Question Mode

QuestionQ953

IP Services

A user has configured OSPF in a single area between two routers. A serial interface connecting R1 and R2 is using encapsulation PPP. By default, which OSPF network type is displayed on this interface when the user enters show ip ospf interface on R1 or R2?

  • A nonbroadcast
  • B point-to-point
  • C point-to-multipoint
  • D broadcast
Explanation

For OSPF on Cisco routers, a serial interface using PPP is treated by default as a point-to-point link. PPP provides a direct connection between exactly two routers, so OSPF classifies the interface as point-to-point rather than broadcast, nonbroadcast, or point-to-multipoint.

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