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Refer to the exhibit.
Assume that OSPFv3 is properly configured on all routers and that R4 advertises its system prefix into Area 0. Which of the following statements best describes how R5 learns R4's IPv6 system prefix?
Suggested Answer: D
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34 comments · newest first
TE
Tegan
11 months ago
R5 learns it through R4's LSA, no doubt!
TE
Tennie
11 months ago
I think it's A, but I'm not 100% convinced.
JA
Jani
11 months ago
Wait, are we sure about that? Seems too straightforward.
IV
Ivette
11 months ago
Totally agree, it's definitely C!
XO
Xochitl
12 months ago
R4 sends its prefix with a Router LSA.
SA
Santos
12 months ago
I feel like the answer has to be related to R4 directly, but I'm torn between the Router LSA and the Inter-Area Prefix LSA options.
CA
Cathrine
1 year ago
I practiced a similar question where R5 learned from an LSA, but I can't remember if it was a Router LSA or an Inter-Area one.
VE
Veronique
1 year ago
I remember something about Inter-Area Prefix LSAs, but I can't recall if R1 or R4 would originate it for R5 to learn about R4's prefix.
LE
Lera
1 year ago
I think R5 learns R4's prefix through a Router LSA from R4, but I'm not entirely sure if that's the right choice.
BU
Bulah
1 year ago
I'm confident that the correct answer is C. R4 will originate a Router LSA to advertise its system prefix, and R5 will learn about it that way.
MA
Marguerita
1 year ago
Okay, let's think this through step-by-step. R4 is advertising its system prefix into Area 0, so R5 should learn about it through an Inter-Area Prefix LSA originated by R1.
KE
Kenneth
1 year ago
Hmm, I'm a bit unsure about this one. I know OSPF has different LSA types, but I'm not 100% sure which one would be used to advertise the IPv6 system prefix from R4 to R5.
LI
Lisbeth
1 year ago
This seems like a pretty straightforward OSPF question. I'll need to think through the LSA types and how they're propagated in the OSPF domain.
MA
Maryrose
2 years ago
B) With a Router LSA originated by R5? More like, 'With a Router LSA originated by R5, and then immediately discarded.'
CO
Colette
2 years ago
That's right, it needs to come from R4 directly.
GE
Gerald
2 years ago
Yeah, R5 won't learn it with a Router LSA originated by R5.
NA
Narcisa
2 years ago
R5 will learn R4's IPv6 system prefix with a Router LSA originated by R4.
SI
Silva
2 years ago
Hmm, this question is router-heavy. I guess it's time for me to brush up on my OSPF knowledge before the exam.
DE
Denny
2 years ago
Willard: I'll make sure to focus on how routers advertise their prefixes in OSPFv3.
WI
Willard
2 years ago
Definitely, OSPF is important to understand for networking exams.
OR
Oretha
2 years ago
Yeah, OSPF can be tricky. Good idea to review before the exam.
FL
Flo
2 years ago
D) With an Inter-Area Prefix LSA originated by R1. Inter-Area Prefix LSAs are used to advertise prefixes between areas.
WE
Wei
2 years ago
Actually, the correct answer is D) With an Inter-Area Prefix LSA originated by R1.
LE
Leah
2 years ago
I'm not sure, but I think it might be E) With an Inter-Area Prefix LSA originated by R5.
CA
Carry
2 years ago
No, I believe it is F) With an Inter-Area Prefix LSA originated by R4.
CA
Cary
2 years ago
I think the answer is C) With a Router LSA originated by R4.
IR
Irma
2 years ago
But R5 learns R4's IPv6 system prefix with a Router LSA originated by R4, not R5.
SH
Sheridan
2 years ago
I disagree, I believe it's E.
IR
Irma
2 years ago
I think the answer is C.
SH
Sheldon
2 years ago
C) With a Router LSA originated by R4. That's the only way R5 can learn R4's system prefix, since R4 is in a different area.
IV
Ivette
2 years ago
R4 advertises its system prefix into Area 0.
EL
Elli
2 years ago
R5 learns R4's system prefix from the Router LSA originated by R4.
CH
Chi
2 years ago
R5 receives the Router LSA from R4.
DE
Derick
2 years ago
R1 originates the Router LSA for R4's system prefix.