Refer to the exhibit. OSPF neighbors routers A, B, C, and D are sending a route for 10.227.150.160/27. When the current route for 10.227.150.160/27 becomes unavailable, which cost will router Y use to

The correct answer is A. cost 20. When the current route for 10.227.150.160/27 becomes unavailable, Router Y will use the next best route based on the OSPF cost to route traffic. In the exhibit, the costs for OSPF routes from Router Y to its neighbors are: Router A: Cost 20 Router B: Cost 40 Router C: Cost 50 Rou

Submitted by lars.no· Mar 5, 2026

Question

Refer to the exhibit. OSPF neighbors routers A, B, C, and D are sending a route for 10.227.150.160/27. When the current route for 10.227.150.160/27 becomes unavailable, which cost will router Y use to route traffic to 10.227.150.160/27?

Exhibits

Options

Acost 20
Bcost 30
Ccost 40
Dcost 50

How the community answered

(29 responses)

A
76% (22)
B
7% (2)
C
14% (4)
D
3% (1)

Explanation

When the current route for 10.227.150.160/27 becomes unavailable, Router Y will use the next best route based on the OSPF cost to route traffic. In the exhibit, the costs for OSPF routes from Router Y to its neighbors are: Router A: Cost 20 Router B: Cost 40 Router C: Cost 50 Router D: Cost 30 The current OSPF route for 10.227.150.160/27 shows a cost of 10 through a specific neighbor (not shown here, but it's likely this route will become unavailable as per the question). Once this route is unavailable, OSPF will choose the next available route with the lowest cost. The route with the lowest cost is through Router A with a cost of 20.

Topics

#OSPF routing#OSPF path selection#OSPF metrics#Routing convergence

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