Courseiva
NetworkingmediumMultiple ChoiceObjective-mapped

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.

Visual reference

192.168.1.0 /24 256 addresses (254 usable) 192.168.1.0 /25 Subnet A 128 addr (126 usable) 192.168.1.128 /25 Subnet B 128 addr (126 usable) Borrowing 1 bit from host portion creates 2 subnets (/25)

About these practice questions

This LFCS question is part of Courseiva's 507-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →

How Courseiva writes practice questions · Editorial policy

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.