Which of the following describes the route update process if the interface from R4 connected to LAN 4 goes down?
A. A 每 No updates occur
B. R4 tells both R1 and R3 the network not accessible. Both R3 and R1 update R2.
C. R4 tells only R1 the network is not accessible. R1 updates R2 and R2 updates R3.
D. R4 tells only R3 the network is not accessible. R3 updates R2 and R2 updates R1.
Answer:B
Which of the following describes the route update process if the interface from R4 connected to LAN 4 goes down?
A. A 每 No updates occur B. R4 tells both R1 and R3 the network not accessible. Both R3 and R1 update R2. C. R4 tells only R1 the network is not accessible. R1 updates R2 and R2 updates R3. D. R4 tells only R3 the network is not accessible. R3 updates R2 and R2 updates R1.