Twelve questions on the whole course, using the branch lab: R1 with Gi0/0 to the ISP (198.51.100.2/30), Gi0/1 to SW1 port Gi1/0/24 on 192.168.10.0/24 and Gi0/2 on 192.168.20.0/24, and SW1 managed at 192.168.10.2 on its Vlan1 SVI. If you get one wrong, the explanation names the lesson to go back to.
1. The prompt shows R1(config-if)#. You type exit. Which prompt do you see next?
2. At the R1> prompt you type show running-config and get '% Invalid input detected at ^ marker'. What is the problem?
3. SW1 is operating as a Layer 2 switch with ip routing disabled. Its Vlan1 SVI is 192.168.10.2/24 and up/up. Local SSH works, and routing and access policies are correct, but SW1 has no gateway configured. Which command supplies the return path to an admin at 192.168.20.10?
4. show ip interface brief on R1 shows 'GigabitEthernet0/1 192.168.10.1 YES NVRAM up up'. What does NVRAM in the Method column tell you?
5. A remote login to R1 fails with 'Password required, but none set'. Which configuration causes this?
6. To reset R1 you type erase startup-config, then reload. IOS asks 'System configuration has been modified. Save? [yes/no]' and you answer yes. What does R1 boot with?
7. In the conventional IOS memory model used in this course, where is startup-config kept?
8. Which command copies R1's active configuration to the TFTP server at 192.168.10.50?
9. show cdp neighbors on R1 lists SW1 on Gig 0/1 but shows no IP address. Which command shows SW1's IP address?
10. CDP advertisements from an old neighbour have stopped. The local interface stayed up and its cached entry is still listed. What happens if no more advertisements arrive?
11. show ip interface brief on R1 shows 'GigabitEthernet0/2 192.168.20.1 YES NVRAM up down'. What does up/down mean?
12. Gi0/2 is still up/down. show ip route on R1 has C and L lines for 192.168.10.0/24 and 198.51.100.0/30, but nothing for 192.168.20.0/24. Why?