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Which regular expression will match the AS Path of a route originating in remote AS 65100?
Suggested Answer: A
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32 comments · newest first
HE
Helene
11 months ago
Surprised that B is even an option!
ME
Merissa
11 months ago
I agree with C, it covers all bases.
MI
Micaela
11 months ago
Wait, isn't D too simple for this?
EM
Emelda
11 months ago
Definitely not, it's C for sure.
MA
Mabel
12 months ago
I think option B is correct!
HE
Heike
12 months ago
I feel like option B could be correct too, since it starts with '65100', but I’m not sure if it captures the entire path correctly.
RO
Rosalia
1 year ago
I'm a bit confused about the difference between options A and C. I thought both could potentially match the AS Path, but I can't recall which one is more specific.
DE
Derrick
1 year ago
I remember practicing with similar questions, and I feel like option C might be the right choice since it allows for '65100' to appear anywhere in the path.
AM
Amber
1 year ago
I think the AS Path should definitely include '65100', but I'm not sure if it needs to be at the beginning or if it can be anywhere in the string.
PA
Paris
1 year ago
I'm a bit confused by this question. There are a few different ways the regex could match the AS Path. I'm not sure if I should go with the more specific B or the more general C. I'll have to think about this one a bit more.
GL
Gladys
1 year ago
Ah, this is a good one. I'm pretty confident the answer is A, '.+ 65100'. The question specifies the route originates in AS 65100, so the regex needs to have 65100 at the end of the string.
HU
Huey
1 year ago
Hmm, I'm not too sure about this one. The question is a bit tricky. I'm thinking maybe C, '.* 65100.*', since that would match any AS Path that contains 65100 anywhere in the string.
PA
Pamella
1 year ago
I think the answer is B, '65100.+'. The question is asking for a regular expression that matches the AS Path of a route originating in remote AS 65100, so the regex needs to have 65100 somewhere in it.
WE
Wei
2 years ago
A seems like the most comprehensive option. Gotta love those greedy wildcards, am I right?
ST
Staci
2 years ago
I agree, A) is the most comprehensive choice. Greedy wildcards make it easier to match the AS Path.
LO
Louis
2 years ago
A) .+ 65100 is definitely the way to go. Greedy wildcards for the win!
LA
Larae
2 years ago
Haha, D is just too simple. This is a routing exam, not a kindergarten quiz!
JU
Jules
2 years ago
D) '65100'
CY
Cyndy
2 years ago
C) '.* 65100.*'
WA
Wayne
2 years ago
B) '65100.+'
BA
Barb
2 years ago
A) '.+ 65100'
FA
Fannie
2 years ago
That makes sense, I change my answer to D) as well
LA
Lawrence
2 years ago
I think the correct answer is D) '65100' because it specifically matches routes originating in AS 65100
AI
Aimee
2 years ago
C looks good to me. Gotta catch that AS Path from any direction, you know?
KA
Kathrine
2 years ago
Yeah, C seems like the most comprehensive option to match the AS Path from remote AS 65100.
TH
Thomasena
2 years ago
I think C is the correct answer too. It covers all possibilities.
AN
Annabelle
2 years ago
But wouldn't option A match any characters before 65100 as well?
DE
Dean
2 years ago
Hmm, I think B is the way to go. The AS Path should have 65100 at the end, right?
KI
Kiley
2 years ago
I think C might also work, as it allows for any characters before and after 65100 in the AS Path.
EL
Elvis
2 years ago
I agree, B seems like the correct choice. It should match AS Path with 65100 at the end.
FA
Fannie
2 years ago
I disagree, I believe the answer is B) '65100.+'
AN
Annabelle
2 years ago
I think the answer is A) '.+ 65100'