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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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Trina
1 day ago
I feel A is misleading. Default route isn’t always first choice.
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Kandis
6 days ago
D sounds extreme. Communication is still possible without a default route.
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Torie
11 days ago
Agreed, C makes the most sense. It’s how routing works.
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Burma
17 days ago
I think C is correct. Default route only kicks in if no specific route exists.
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Floyd
22 days ago
I agree with C, that’s how it works in most setups.
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Marla
27 days ago
Wait, B says all other routes are disabled? That doesn’t sound right!
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Floyd
1 month ago
D seems extreme. You can still communicate on directly attached networks without a default route.
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Aretha
1 month ago
A is misleading. The default route isn’t always first!
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Nicolette
1 month ago
C is spot on! Default route only kicks in when no specific routes are found.
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Darrel
2 months ago
B is totally wrong. Other routes aren't disabled just because a default route is set.
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Ammie
2 months ago
Wait, so if there's no default route, does that really mean no communication at all?
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Lacresha
2 months ago
A is misleading. The default route isn't always used first; it depends on the routing table.
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Dana
2 months ago
I disagree with D. You can still communicate on directly attached networks without a default route.
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Devon
2 months ago
C is correct! Default routes only kick in when no specific routes are available.
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Marta
2 months ago
D sounds wrong because I think you can still communicate on directly attached networks without a default route.
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Hershel
3 months 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
3 months ago
I remember something about default routes not disabling other routes, so B seems off to me.
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Rolland
4 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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