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Linux Foundation LFCS Exam - Topic 1 Question 114 Discussion

What is true regarding a default route?
C) The default route is only used if there is not a more specific route to a destination host or network.
A) The default route is always used first. When the default route is not available more specific routes are tried.
B) When a default route is set, all other routes are disabled until the default route is deleted.
D) Without a default route, no network communication even in directly attached networks is possible.

Linux Foundation LFCS Exam - Topic 1 Question 114 Discussion

Actual exam question for Linux Foundation's LFCS exam
Question #: 114
Topic #: 1
[All LFCS Questions]

What is true regarding a default route?

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Suggested Answer: C

by Jamal at May 12, 2026, 03:27 PM

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Darrel
2 days ago
B is totally wrong. Other routes aren't disabled just because a default route is set.
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Ammie
8 days ago
Wait, so if there's no default route, does that really mean no communication at all?
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Lacresha
13 days ago
A is misleading. The default route isn't always used first; it depends on the routing table.
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Dana
18 days ago
I disagree with D. You can still communicate on directly attached networks without a default route.
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Devon
23 days ago
C is correct! Default routes only kick in when no specific routes are available.
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Marta
28 days ago
D sounds wrong because I think you can still communicate on directly attached networks without a default route.
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Hershel
1 month ago
I’m not entirely sure, but I feel like A might be misleading since the default route isn’t always the first choice.
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Aretha
1 month ago
I remember something about default routes not disabling other routes, so B seems off to me.
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Rolland
3 months ago
I think the default route is used when there are no more specific routes available, so maybe C is correct?
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