LPIC-1 Essential System Services and Networking Practice Question
Exhibit
default via 192.168.1.1 dev eth0
Refer to the exhibit. A system administrator runs 'ip route show default' and gets this output. What does it indicate?
⚠ Common exam trap
Many exam-takers confuse the default gateway with other network parameters like DNS server or the system's own IP address, leading candidates to incorrectly associate the gateway IP with those unrelated services.
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
✓
The default route points to gateway 192.168.1.1 on interface eth0.
The command 'ip route show default' displays the default route entry in the kernel routing table. The output shows that the default route (destination 0.0.0.0/0) is via gateway 192.168.1.1 and uses interface eth0, meaning all traffic not matching a more specific route is sent to that gateway on that interface.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The DNS server is 192.168.1.1.
Why it's wrong here
This is the route, not DNS.
- ✓
The default route points to gateway 192.168.1.1 on interface eth0.
Why this is correct
That is exactly what the output means.
- ✗
The system has no internet access.
Why it's wrong here
With a default route, internet access is possible if the gateway works.
- ✗
The IP address of the system is 192.168.1.1.
Why it's wrong here
The IP address is not displayed; only the gateway is shown.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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