Discuss Linux Foundation LFCS Exam Topic 5 Question 11

On a regular users workstation the route command takes a long time before printing out the routing table. Which of the following errors does that indicate?

AThe local routing information may be corrupted and must be re-validated using a routing protocol.

BOne of the routers in the routing table is not available which causes the automatic router failure detection mechanism (ARF-D) to wait for a timeout.

CThere may accidentally be more than one default router in which case a default router election has to be done on the network in order to choose one router as the default.

DDNS resolution may not be working as route by default tries to resolve names of routers and destinations and may run into a timeout.

Suggested Answer: D

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14 comments · newest first

Paulene 1 year ago

I think it’s just a slow connection, nothing major.

Norah 1 year ago

Definitely a routing protocol problem.

Mendy 1 year ago

Wait, can multiple default routers really cause that?

Tegan 1 year ago

I disagree, it's probably a router timeout.

Brande 1 year ago

Sounds like a DNS issue to me.

Ashlee 1 year ago

I vaguely recall that if routing info is corrupted, it could cause delays too, so A might be worth considering as well.

Micaela 1 year ago

I practiced a similar question where routing issues were linked to multiple default routers. C could be a possibility, but I'm not confident.

Rodney 1 year ago

I'm not entirely sure, but I think B sounds plausible since it mentions a router timeout, which could cause delays.

Josphine 1 year ago

I remember something about routing tables taking longer if there's a DNS issue, so D might be the right choice.

Bobbie 1 year ago

Hmm, I'm a bit unsure about this one. The wording is a bit tricky, and I want to make sure I understand the difference between mission-critical and non-critical systems before answering.

Nickie 1 year ago

Statically assigning a VLAN ID sounds familiar, but I feel like that's more of a basic setup than an extension out of ACI.

Colene 1 year ago

Okay, I remember learning about this. View functions can only be accessed during calls, while pure functions can be accessed during both calls and transactions. I'm pretty confident in that distinction.

Margret 1 year ago

I remember a question like this in practice; I think corroborative evidence was more about supporting information from multiple sources.

Lamonica 1 year ago

This looks like a tricky one. I'll need to think carefully about the security implications of each option.

Linux Foundation LFCS Exam - Topic 5 Question 11 Discussion