Learning path
Troubleshooting
7 labs2.8 hours400 pointsintermediate
Work faults the way a technician does: ask before you act, read the evidence, find the one root cause and fix it without breaking anything else. Start with a user ticket, then track down faults on Linux, Microsoft 365, Cisco switches and a MikroTik router.
Finish every lab to earn a certificate.
Troubleshoot a user's problemNext
Work a ticket the way an agent does: ask the right questions before you change anything, find the cause, fix it, write it down and close it, and know when a request needs a manager's approval.
intermediate30 min
Troubleshoot: sending from the shared Sales mailbox fails
A salesperson can open the shared Sales mailbox but cannot send mail as it, while a colleague can. Compare the two permission lists, find what is missing, and grant exactly that.
intermediate15 min
Troubleshoot: a report will not save
An analyst can open and edit last quarter's report but cannot save a new one in the same folder. Find which of owner, group and mode is wrong, and fix it with the least access that works.
intermediate20 min
Troubleshoot: the server cannot reach anything outside
A server can talk to its neighbors but not to the internet. Work out whether it is a name problem or a route problem, find the wrong setting, and fix it with the command line.
intermediate25 min
Troubleshoot: a desk went dead overnight
One desk lost its network connection and nobody touched the switch. Find out why the switch shut the port down, fix the cause and not just the symptom, and bring the port back.
intermediate25 min
Troubleshoot: Engineering cannot reach the file server
After a weekend network change, nobody in Engineering can reach the file server and a new hire cannot get on the network at all. Read the switch, find what the change missed, and put it right.
intermediate25 min
Troubleshoot: the whole office is offline
Everyone in the office has lost the internet, but the router itself is fine and the ISP light is on. Test the way the office sees the network, read the rules, and find the one that is wrong.
intermediate25 min