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Fortinet NSE8_812 Exam - Topic 6 Question 53 Discussion

Actual exam question for Fortinet's NSE8_812 exam
Question #: 53
Topic #: 6
[All NSE8_812 Questions]

Review the VPN configuration shown in the exhibit.

What is the Forward Error Correction behavior if the SD-WAN network traffic download is 500 Mbps and has 8% of packet loss in the environment?

Show Suggested Answer Hide Answer
Suggested Answer: A

The FEC configuration in the exhibit specifies that if the packet loss is greater than 10%, then the FEC mapping will be 8 base packets and 2 redundant packets. The download bandwidth of 500 Mbps is not greater than 950 Mbps, so the FEC mapping is not overridden by the bandwidth setting. Therefore, the FEC behavior will be 2 redundant packets for every 8 base packets.

Here is the explanation of the FEC mappings in the exhibit:

Packet loss greater than 10%:8 base packets and 2 redundant packets.

Upload bandwidth greater than 950 Mbps:9 base packets and 3 redundant packets.

The mappings are matched from top to bottom, so the first mapping that matches the conditions will be used. In this case, the first mapping matches because the packet loss is greater than 10%. Therefore, the FEC behavior will be 2 redundant packets for every 8 base packets.


by Doug at Nov 21, 2025, 12:04 AM

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Horace
10 hours ago
Redundant packets? Sounds like my ex-boyfriend. I'm going with C, just to be different.
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Bernardo
6 days ago
8% packet loss? That's nothing, I've seen networks with 80% packet loss. Still, I think B is the best option here.
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Jettie
11 days ago
Forward Error Correction, eh? Sounds like a fancy way to say "let's just throw more packets at the problem!" I'll go with A.
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Devon
16 days ago
Redundant packets, huh? Sounds like a party! I'm going with D - 3 redundant packets for every 9 base packets.
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Marica
21 days ago
Wow, 500 Mbps download? That's some serious bandwidth! I think C - 2 redundant packets for every 8 base packets is the way to go.
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Diane
26 days ago
I recall that for higher packet loss, you generally need more redundancy, but I can't remember the exact ratios. I might guess option A, but I'm not confident.
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Stephania
1 month ago
I’m a bit confused about how to interpret the 8% packet loss in relation to the options given. Did we cover how to convert that into redundant packets?
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Brice
1 month ago
This question feels similar to one we practiced where we had to determine redundancy based on different loss rates. I think I might lean towards option D.
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Barb
1 month ago
I think I remember something about calculating redundancy based on packet loss percentages, but I'm not entirely sure how to apply it here.
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Odette
2 months ago
This is a good opportunity to apply my knowledge of FEC and SD-WAN. I'll carefully analyze the information provided and try to reason through the best solution.
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Mohammad
2 months ago
I'm a bit confused by the different FEC options. I'll need to review the concepts and try to visualize how each one would handle the given network conditions.
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Isreal
2 months ago
Okay, let's see. The key is understanding how FEC works and how it scales with the packet loss rate. I'll need to do some calculations to determine the best redundancy ratio.
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Scot
2 months ago
Yeah, I feel like it’s a bit confusing with the percentages.
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Jerilyn
2 months ago
This question is tricky. I think it's about calculating redundancy.
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Dianne
2 months ago
Looks like option A is the right choice!
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Samira
3 months ago
Anyone else think the calculations seem off?
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Clemencia
3 months ago
Hmm, 8% packet loss? That's a lot of dropped packets. I'd go with B - 3 redundant packets for every 5 base packets.
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Francis
3 months ago
Hmm, 500 Mbps download with 8% packet loss - that's a lot of data to deal with. I'll need to consider the different FEC options and how they might perform in this scenario.
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Larae
3 months ago
This looks like a tricky one. I'll need to carefully review the VPN configuration and think through the impact of the packet loss.
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