EXERCISE 12.01.E XERCISE 12.03R EQUESTING A C ERTIFICATE FROM A W EB S...

8. Your IT Director has been reading again. He has decided that he wants to convert thenetwork to OSPF, but he is having some difficulty with terminology. He knows that anOSPF router can serve one of four roles. His problem is that he can’t remember whichrole exists when one of the router’s interfaces is on the backbone area. Help him out.Which of the following is it?A. Internal routerB. Area border routerC. Backbone routerD. Autonomous system boundary routerC. If one of a router’s interfaces is on the backbone area, that router is considered abackbone router.A, B, D.When all interfaces are connected to the same area, the router is consideredan internal router.This rules out Answer A.When a router’s interfaces are connected todifferent areas, that router is an area border router (ABR).This rules out Answer B.When the router exchanges routes with sources outside the network area, it is knownas an autonomous system boundary router (ASBR).This rules out Answer D.

Security Considerations for Routing