On the campus OSPF network shown in the following figure, the interfaces connecting the five...

Understanding the Network Setup:

The OSPF network consists of three areas (Area 1, Area 0, and Area 2).

The server ' s subnet 192.168.1.0/24 is directly connected to R1 and imported into OSPF using the command:

import-route direct type 1 cost 2

The type 1 specifies the route as an OSPF Type 1 external route , meaning both the external cost and the internal OSPF cost will be included when calculating the total cost.

The external cost specified for the imported route is 2 .

Cost Calculation to R2:

The interfaces between the routers are GE interfaces, and the default cost for GE interfaces is 1 .

The path from R2 to the server goes through the following hops:

R2 → R1: Cost = 1 (intra-area link).

R1 → Server: External cost = 2 (specified in the import-route command).

Total cost to R2:

Intra-area cost (1) + External cost (2) = 3

Verification of Each Option:

Option A (2): Incorrect. This only accounts for the external cost, ignoring the internal OSPF cost.

Option B (4): Incorrect. This overestimates the cost by adding an extra hop.

Option C (3): Correct. The total cost is 3 (1 for the intra-area link + 2 for the external cost).

Option D (1): Incorrect. This ignores the external cost of the imported route.