SIMULATION
A network engineer receives reports that PC 3 cannot connect to either the file server or web server. The technician pings the web server and the file server from PC 3, but the request times out. However, the technician is able to connect to the internet from PC 3.
INSTRUCTIONS
Click on Switch 1 and Switch 2 to configure and remediate the issue. Both devices are already in configuration mode. Type help to view a list of available commands.
Then, click on PC 3 to validate its connectivity between the file server and the web server. The only VLANs available are currently configured within show vlan.
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.




Correct Answer:
PC 3 is in VLAN 10, and the servers (file, database, web) are in VLAN 20.
PC 3 can reach the internet, so its local VLAN is working.
PC 3 cannot reach VLAN 20 servers, meaning the trunk between Switch 1 and Switch 2 is not passing VLAN 20.
Configuration for Switch 1:
interface gi1
switchport mode trunk
switchport trunk allowed vlan 10,20
end
Configuration for Switch 2:
interface gi1
switchport mode trunk
switchport trunk allowed vlan 10,20
end
After entering these commands, return to PC 3 and validate connectivity. To validate connectivity from PC 3, you simply need to ping the servers again after applying the trunk configuration.
On PC 3, run:
ping 192.168.1.30
ping 192.168.1.32
Successful validation means:
- You receive reply messages instead of "Request timed out."
- Packet loss should be 0%.
If the trunk ports were configured correctly on both switches, both pings will succeed, confirming that:
PC 3 (VLAN 10) can now reach the servers (VLAN 20).
Inter-VLAN connectivity through the switch trunk is restored.