XK0-006 Troubleshooting Practice Question
An administrator needs to check the status of NetworkManager connections and devices. Which TWO commands provide this information?
⚠ Common exam trap
Many candidates confuse `nmcli device show` (detailed device info) with `nmcli dev status` (summary status), or assume that legacy commands like `ifconfig` or `ip link show` can report NetworkManager-specific connection states, which they cannot.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
nmcli dev status
The `nmcli dev status` command (option B) displays a summary of all NetworkManager-managed devices and their connection states, such as 'connected' or 'disconnected'. The `nmcli con show` command (option C) lists all configured connections (profiles) and their current status, including whether they are active. Together, these two commands provide the administrator with both device-level and connection-level status information required by the question.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
nmcli device show
Why it's wrong here
Shows detailed device info, not a summary status.
- ✓
nmcli dev status
Why this is correct
Shows device status (connected, disconnected, etc.).
- ✓
nmcli con show
Why this is correct
Shows connection profiles and their status.
- ✗
ifconfig -a
Why it's wrong here
Not NetworkManager-specific; shows interfaces.
- ✗
ip link show
Why it's wrong here
Not NetworkManager-specific; shows link state.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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