Nokia 4A0-255 Exam - Topic 3 Question 71 Discussion

Actual exam question for Nokia's 4A0-255 exam

Question #: 71
Topic #: 3

Suppose that for a given number of buffer credits and for an given average FC frame size, the maximum FC link length is 50 km.

If the average FC frame size is doubled, which of the following is correct?

AThe throughput is halved.

BThroughput is doubled.

CThe Throughput is the same,.

DThe buffer credits need to be adjusted to achieve the maximum throughput.

Show Suggested Answer

Suggested Answer: D

by Mireya at Nov 21, 2025, 04:02 AM

Limited Time Offer

25%

Off

Get Premium 4A0-255 Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Felix

13 hours ago

D) The buffer credits need to be adjusted for sure.

upvoted 0 times

...

Fernanda

6 days ago

Wait, really? I thought doubling the frame size would mean more data sent.

upvoted 0 times

...

Marvel

11 days ago

I disagree, it should be C) The Throughput is the same.

upvoted 0 times

...

Carylon

16 days ago

A) The throughput is halved.

upvoted 0 times

...

Gerald

21 days ago

Haha, this is like asking if doubling the size of your car will make it go faster. Of course the buffer credits need adjusting!

upvoted 0 times

...

Augustine

26 days ago

Option B is the way to go. Bigger frames = more data per frame = higher throughput.

upvoted 0 times

...

Carissa

1 month ago

C is the answer. Throughput remains the same regardless of frame size.

upvoted 0 times

...

Kaitlyn

1 month ago

I'd go with B. Doubling the frame size should double the throughput, right?

upvoted 0 times

...

Ruth

1 month ago

I feel like I read that throughput is related to frame size, but I can't remember if it means we need to adjust buffer credits or not.

upvoted 0 times

...

Cheryl

2 months ago

I remember a similar question where changing the frame size impacted buffer credits. Maybe we need to adjust them here too?

upvoted 0 times

...

Brett

2 months ago

Hmm, the key is understanding how frame size relates to throughput and buffer credits. I'll need to think this through step-by-step.

upvoted 0 times

...

Paulina

2 months ago

Wait, I'm a bit confused. Wouldn't doubling the frame size affect the throughput somehow? I need to review the concepts here.

upvoted 0 times

...

Anissa

2 months ago

I think if the frame size doubles, it might affect the throughput, but I'm not sure if it halves or stays the same.

upvoted 0 times

...

Buck

2 months ago

Option D is correct. Doubling the frame size means the buffer credits need to be adjusted to maintain maximum throughput.

upvoted 0 times

...

Julene

2 months ago

Alright, I got this. Doubling the frame size means the throughput should stay the same, so C looks good to me.

upvoted 0 times

...

Malinda

3 months ago

My gut says the throughput is the same, but I can't recall if doubling the frame size changes anything significant.

upvoted 0 times

...

Buck

3 months ago

Hmm, this one's tricky. I'll have to go with D and trust the buffer credits need adjusting.

upvoted 0 times

...

Deonna

3 months ago

Okay, let me see. If the frame size doubles, that should impact the buffer credits needed, right? I'll have to weigh the options carefully.

upvoted 0 times

...

Cora

3 months ago

Hmm, this seems like a tricky one. I'll need to think through the relationship between frame size and throughput.

upvoted 0 times

...