Refer to the exhibit. Which statement describes the result of this configuration?

Question

Exhibit

Options

• AR1 redistributes BGP routes into the OSPF process of VRF custabc as E1 routes.
• BR1 redistributes BGP routes into the OSPF process of VRF custabc as E2 routes.
• CR1 mutually redistributes routes between BGP 65001 and the OSPF process of VRF custabc.
• DR1 redistributes BGP routes into the OSPF process of VRF custabc as OIA routes.

• A
  77% (24)
• B
  6% (2)
• C
  3% (1)
• D
  13% (4)

Explanation

Option A is correct because the exhibit's configuration includes metric-type 1 in the redistribute bgp command under the OSPF process tied to VRF custabc, which explicitly sets redistributed routes as Type 1 External (E1) - meaning the metric accumulates (seed metric + internal OSPF cost to the ASBR) as the route propagates through the OSPF domain.

Why the distractors are wrong:

• B (E2): E2 is the default OSPF external route type, but the presence of metric-type 1 in the exhibit overrides the default, making B incorrect.
• C (mutual redistribution): The configuration only shows a redistribute bgp statement under the OSPF process - there is no corresponding redistribute ospf under the BGP process, so redistribution is one-directional only.
• D (OIA): OIA (OSPF Inter-Area) routes originate from ABRs summarizing routes between OSPF areas - they are never the result of external redistribution; external routes always appear as E1 or E2.

Memory tip: Think "E1 = Escalating, E2 = Even" - E1 metrics grow as the route travels through OSPF (adds internal cost), while E2 metrics stay flat at the original seed metric. If the config says metric-type 1, the answer involves E1.

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