Nokia 4A0-114 Exam - Topic 6 Question 52 Discussion

Actual exam question for Nokia's 4A0-114 exam

Question #: 52
Topic #: 6

An autonomous system has 7 routers configured with BGP. How many iBGP sessions are required for a fully meshed configuration?

B13

C21

D42

Show Suggested Answer

Suggested Answer: C

by Erin at Feb 10, 2025, 09:04 AM

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Denna

5 months ago

Definitely 21, it's a standard formula.

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Janae

5 months ago

I thought it was way more than that!

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Veronica

5 months ago

Wait, how does that even work?

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Peggie

5 months ago

Totally agree, it's 21!

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Gerald

6 months ago

You need 21 iBGP sessions for 7 routers.

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Ivette

6 months ago

I remember calculating this before, and I think it’s definitely more than 7. I’m leaning towards 21 sessions based on that formula.

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Glory

6 months ago

I’m a bit confused; I thought it was just the number of routers, so maybe it’s 7? But that doesn’t seem right.

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Oretha

6 months ago

I recall practicing a similar question, and I think the answer was related to combinations of routers. Could it be 21 sessions?

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Celia

6 months ago

I think for iBGP sessions, we need to remember the formula n(n-1)/2, but I'm not entirely sure how to apply it here.

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Miesha

6 months ago

I've got this! The formula for the number of iBGP sessions in a fully meshed configuration is n(n-1)/2, where n is the number of routers. So for 7 routers, the answer is 21.

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Dulce

6 months ago

I'm a bit unsure about this one. The number of iBGP sessions seems to depend on the number of routers, but I'm not sure of the exact formula.

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Artie

6 months ago

Okay, let's think this through step-by-step. If there are 7 routers, that means we need to calculate the number of iBGP sessions required for a fully meshed configuration.

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Elena

7 months ago

Hmm, this looks like a classic BGP topology question. I think I know how to approach this, but let me double-check my work.

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Marion

1 year ago

But for a fully meshed configuration, each router needs to have a session with every other router, so it should be 7 * 6 / 2 = 21. So, I think C) 21 is correct.

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Cordie

1 year ago

I disagree, I believe the answer is C) 21.

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Marion

1 year ago

I think the answer is B) 13.

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Wenona

1 year ago

Let's see, 7 routers... Hmm, I think the answer is B - 13 sessions. Gotta keep that mesh tight, you know?

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Quinn

1 year ago

Oh, I see. So the correct answer is D - 42 sessions.

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Shalon

1 year ago

Actually, it's C - 21 sessions.

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Dominic

1 year ago

No, I believe it's B - 13 sessions.

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Fannie

1 year ago

I think the answer is A - 7 sessions.

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Rodney

1 year ago

Woah, 42 iBGP sessions? That's a lot of handshakes! I'm gonna go with option C - 21 sessions, seems like the right balance of connectivity and sanity.

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