LFCS Networking Practice Question
Exhibit
Refer to the exhibit. $ ip route show 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.10 metric 100 10.0.0.0/8 via 192.168.1.1 dev eth0 proto static metric 100 default via 192.168.1.1 dev eth0 proto static metric 100
Given the routing table output in the exhibit, what will happen when the system tries to send a packet to 10.1.1.1?
⚠ Common exam trap
It's easy for candidates to assume a destination like 10.1.1.1 has no matching route and default to the default gateway, overlooking the presence of a classful /8 route that explicitly covers it.
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 packet is sent to 192.168.1.1 via eth0.
The routing table shows a specific route for the 10.0.0.0/8 network via gateway 192.168.1.1 on eth0. Since 10.1.1.1 falls within this subnet, the packet is forwarded to 192.168.1.1 via eth0, not through the default route or any other 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 packet is sent via eth1.
Why it's wrong here
No route via eth1 is present.
- ✓
The packet is sent to 192.168.1.1 via eth0.
Why this is correct
The 10.0.0.0/8 route matches and points to that gateway.
- ✗
The packet is sent via default route.
Why it's wrong here
The specific route is preferred over default.
- ✗
The packet is dropped because there is no subnet matching 10.1.1.1.
Why it's wrong here
There is a route: 10.0.0.0/8 covers 10.1.1.1.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This LFCS practice question is part of Courseiva's free Linux Foundation certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the LFCS exam.