You are asked to merge a RIP network with your OSPF network. As a first step, you establish
connectivity between the RIP network and the OSPF network. The RIP network connects to an
NSSA area. Which two statements are true in this scenario? (Choose two.)
A.
To share RIP routes with the OSPF network, an export policy will be required on the ABR.
B.
To share RIP routes with the OSPF network, an export policy will be required on the ASBR.
C.
By default, external OSPF routes have a higher route preference than RIP routes.
D.
Be default, RIP routes have a higher route preference than external OSPF routes.
Answer is B & C…
Route Preference Values
OSPF Internal = 10
RIP = 100
OSPF External = 150
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B and C
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lower value, higher preference …
B & D are correct !!!
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route preference: Value (integer in the range 0 through 255) associated with each route that a router uses to select an active route when multiple routes exist. The value is determined by the protocol or origin of the route. The lower the preference value of a route, the more likely the route is to be selected as the active route. Routes with a preference of 255 are not installed in the routing table. Also known as administrative distance.
https://www.juniper.net/documentation/en_US/junos/topics/concept/routing-protocol-static-security-route-preference-and-qualified-next-hop-understanding.html
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Then…The upper the preference value of a route, the less likely the route is to be selected as the active route, and the lower the preference value of a route, higher the preference the route to be selected as the active route.
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