Essential System Services and Networking →mediumMultiple ChoiceObjective-mapped

LPIC-1 Essential System Services and Networking Practice Question

Exhibit

Refer to the exhibit.

Output of 'ip route show':

default via 192.168.1.1 dev eth0 proto static metric 100
192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.10 metric 100
10.0.0.0/8 via 10.0.0.1 dev eth1 proto static metric 200

Refer to the exhibit. The system has two network interfaces: eth0 and eth1. Which interface will be used to reach a host at IP address 10.10.10.10?

⚠ Common exam trap

Candidates often assume the default gateway is always used for non-local traffic, forgetting that a more specific static route (like 10.0.0.0/8) takes precedence over the default route.

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

✓

eth1 via gateway 10.0.0.1.

The routing table determines that the destination IP 10.10.10.10 is not within any directly connected subnet (eth0: 192.168.1.0/24, eth1: 10.0.0.0/24). The most specific matching route is the static route to 10.0.0.0/8 via gateway 10.0.0.1 on eth1, which covers the 10.10.10.10 address. Therefore, eth1 is used to reach the host.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✓
eth1 via gateway 10.0.0.1.
Why this is correct
10.10.10.10 falls within 10.0.0.0/8.
✗
eth0 via gateway 192.168.1.1.
Why it's wrong here
No route for 10.x.x.x via that gateway.
✗
eth0 via the default gateway.
Why it's wrong here
Default route is used only if no specific match.
✗
eth0 directly.
Why it's wrong here
Destination not in local subnet.

Visual reference

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LPIC-1 Essential System Services and Networking Practice Question

Exhibit

Why each option matters

Option-by-option breakdown

Related to this question