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Router R2 is advertising prefix 192.168.1.0/27 with community "no-advertise" towards AS 65002. Which routers receive an update for that prefix?
Suggested Answer: B
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34 comments · newest first
BE
Bernadine
11 months ago
This is confusing, how does "no-advertise" even work?
BR
Broderick
11 months ago
R3 is the only one that gets it, right?
EV
Evangelina
11 months ago
Wait, are you sure? I thought it would still send to R3.
NA
Nan
11 months ago
Definitely D, makes sense!
UL
Ulysses
12 months ago
Router R2 won't advertise due to "no-advertise" community.
LE
Lenita
12 months ago
I vaguely recall that "no-advertise" prevents the prefix from being sent to other ASes, which would mean only R2 is aware of it. So, could it really be D?
WI
William
1 year ago
I feel like I might be mixing up the community settings. I thought "no-advertise" meant it wouldn't send updates at all, so maybe it's D?
MO
Mozell
1 year ago
This question seems similar to one we practiced where a router was set to not advertise a prefix. I think it might be D, but I need to double-check.
KA
Karan
1 year ago
I remember studying the concept of BGP communities, but I'm not entirely sure how "no-advertise" affects the updates.
TA
Tasia
1 year ago
I think I've got this. The "no-advertise" community means the prefix won't be advertised to any other ASes, so only the routers within AS 65002 will receive the update.
CA
Caprice
1 year ago
I'm a bit confused on this one. The "no-advertise" community is throwing me off. I'll need to review how that works before I can confidently answer this.
MI
Mireya
1 year ago
Okay, let's see. The question says Router R2 is advertising the prefix with the "no-advertise" community. I'm guessing that means the prefix won't be advertised to any other routers.
BE
Benton
1 year ago
Hmm, this looks like a tricky one. I'll need to think through the BGP community "no-advertise" and how that affects the route propagation.
TW
Twana
1 year ago
This is a good opportunity to apply my knowledge of EVPN-IRB. I'll methodically go through the answer choices and use my understanding of the interface-ful unnumbered model to determine the incorrect statement.
AD
Adelina
1 year ago
Okay, I remember learning about WPS being vulnerable to brute-force attacks. I'm pretty confident that's the right answer here.
OM
Omega
1 year ago
I bet the network admin who set this up was having a bad day. 'No-advertise' and advertising, huh? Sounds like a party at R2!
MA
Marcos
1 year ago
R2 is keeping the prefix to itself, no updates for anyone else.
BE
Beata
1 year ago
User3: R2 must be feeling left out since it doesn't advertise the update for the prefix.
LI
Linette
1 year ago
User2: Yeah, R3 and R4 are the ones receiving the update for that prefix.
TA
Tatum
1 year ago
R3 and R4 are the lucky ones getting the update.
WI
Winfred
1 year ago
User1: Looks like R2 is causing some trouble with that 'no-advertise' community.
CA
Catalina
1 year ago
R2 is being a party pooper with that 'no-advertise' community.
AN
Anastacia
1 year ago
This is a tricky one. I wonder if the router's configuration is a bit buggy. Maybe they forgot to apply the community properly? *scratches head*
LO
Louvenia
1 year ago
But wait, doesn't the question say Router R2 is advertising the prefix? That seems to contradict the 'no-advertise' community. I'm leaning towards option C.
CO
Colette
1 year ago
So, the update would only reach R3, R4, and R5 in this scenario.
JA
Jamal
1 year ago
I agree, the 'no-advertise' community prevents R2 from advertising the prefix to other routers.
EV
Eva
1 year ago
That makes sense. R3, R4, and R5 would receive the update.
DO
Doretha
1 year ago
Option C is correct because R2 is advertising the prefix with the 'no-advertise' community.
LI
Lizbeth
2 years ago
I agree with Roxane, the prefix with community 'no-advertise' should only be received by Routers R3 and R4.
WI
Willard
2 years ago
Hmm, the 'no-advertise' community should prevent the prefix from being advertised outside of AS 65002, so I'm going with option D.
LE
Lera
1 year ago
Yes, the 'no-advertise' community should indeed prevent the prefix from being advertised outside of AS 65002.
LE
Lera
1 year ago
I agree with you, option D seems to be the correct choice.
RO
Roxane
2 years ago
I disagree, I believe the answer is B) Routers R3 and R4 only.
GR
Graciela
2 years ago
I think the answer is A) Router R3 only.