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Master the Network.

Troubleshoot real Cisco network outages in a live CLI simulation.

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MISSION 01CCNA

The Office Network Outage

CCNA · Beginner · 15 min · 500 XP

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More missions coming soon.

How it works

  1. 01

    Read the incident ticket

    Every mission starts with a real-world complaint from users.

  2. 02

    Investigate

    Use real Cisco IOS show commands on routers, switches and PCs.

  3. 03

    Apply the fix

    Change the configuration directly in the CLI.

  4. 04

    Verify and learn

    Run connectivity tests to confirm service is restored, then see your score and the explanation.

R1# show ip interface brief

Interface              IP-Address      OK? Method Status                Protocol
GigabitEthernet0/0     unassigned      YES unset  up                    up
Gi0/0.10               192.168.10.1    YES manual up                    up
Gi0/0.20               192.168.20.1    YES manual up                    up
Gi0/0.30               192.168.30.1    YES manual up                    up
GigabitEthernet0/1     unassigned      YES unset  administratively down down