Eccouncil 312-38 Exam - Topic 10 Question 94 Discussion

Actual exam question for Eccouncil's 312-38 exam

Question #: 94
Topic #: 10

Daniel who works as a network administrator has just deployed an in his organizations network. He wants to calculate the False Positive rate for his implementation. Which of the following formulas will he use to calculate the False Positive rate?

AFalse Positive/False Positive+True Negative

BTrue Negative/False Negative+True Positive

CFalse Negative/False Negative+True Positive

DFalse Negative/True Negative+True Positive

Show Suggested Answer

Suggested Answer: A

The False Positive rate (FPR) is a measure used in statistics and network security to evaluate the performance of a security system. It is calculated by dividing the number of false positives (FP) by the sum of false positives (FP) and true negatives (TN). The formula is represented as:

FPR=FP+TNFP

This rate indicates how often benign activities are incorrectly flagged as malicious, which is crucial for a network administrator like Daniel to understand the reliability of the security measures implemented.

by Ollie at Sep 17, 2024, 09:28 PM

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Vallie

3 months ago

A is the standard, but I can see why some might confuse it.

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Merilyn

3 months ago

Really? I’m surprised A is correct. I always mix these up!

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Elsa

3 months ago

No way, it's C! False Negative is key here.

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Marta

4 months ago

I thought it was B at first, but A makes more sense.

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Tiera

4 months ago

It's definitely A! That's the right formula for False Positive rate.

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Susana

4 months ago

I vaguely remember that the False Positive rate is about how many negatives were incorrectly identified as positives. I think it might be option A, but I'm not completely confident.

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Broderick

4 months ago

I practiced a similar question where we had to identify metrics from a confusion matrix. I feel like it's definitely related to False Positives and True Negatives.

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Jackie

4 months ago

I think the False Positive rate is calculated using False Positives and True Negatives, but I can't recall the exact formula.

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Della

5 months ago

I remember studying the confusion matrix, but I'm not entirely sure about the exact formula for False Positive rate.

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Nelida

5 months ago

I'm confident the answer is A. The false positive rate is calculated by dividing the false positives by the sum of false positives and true negatives.

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Rosalyn

5 months ago

Okay, let me think this through. The false positive rate is the proportion of negative instances that are incorrectly identified as positive. So the formula should be A - False Positive / (False Positive + True Negative).

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Georgeanna

5 months ago

Hmm, I'm a bit unsure about this one. I'll need to review my notes on performance metrics for security systems to make sure I pick the right formula.

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Erick

5 months ago

This looks straightforward - the formula for false positive rate is False Positive / (False Positive + True Negative).

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Lenna

1 year ago

False Positive rate? More like False Positive 'FRIGHT' rate, am I right? Eh? Eh? *crickets*

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Moon

1 year ago

D) False Negative/True Negative+True Positive

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Elinore

1 year ago

C) False Negative/False Negative+True Positive

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Jarod

1 year ago

B) True Negative/False Negative+True Positive

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Jules

1 year ago

A) False Positive/False Positive+True Negative

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Nguyet

1 year ago

Hmm, this is a tricky one. I'm gonna go with A, as it seems the most intuitive formula for False Positive rate.

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Herschel

1 year ago

B sounds more like the formula for True Negative rate. The False Positive rate has to be A.

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Jeanice

1 year ago

Thanks for clarifying, I'll use formula A to calculate the False Positive rate.

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Hollis

1 year ago

Yes, A is the right formula to use in this case.

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Cassi

1 year ago

I think you're right, A is the correct formula for calculating the False Positive rate.

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Jerry

1 year ago

I think formula C is the right one because it focuses on False Negative in the calculation.

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Jamika

1 year ago

I disagree, I believe formula B is the correct one to use for calculating False Positive rate.

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Maryann

1 year ago

C looks right to me. False Negative / (False Negative + True Positive) is the formula for False Positive rate.

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Gail

1 year ago

D) False Negative/True Negative+True Positive

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Mari

1 year ago

C) False Negative/False Negative+True Positive

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Margret

1 year ago

B) True Negative/False Negative+True Positive

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Valentine

1 year ago

A) False Positive/False Positive+True Negative

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Reed

1 year ago

I think the answer is A. It makes sense to calculate the False Positive rate as False Positive / (False Positive + True Negative).

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Britt

1 year ago

I'm pretty sure it's D. False Negative / (True Negative + True Positive).

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Ashley

1 year ago

I think it's C. False Negative / (False Negative + True Positive).

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Myong

1 year ago

I believe the answer is A too. It's False Positive / (False Positive + True Negative).

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Maybelle

1 year ago

I think Daniel should use formula A to calculate the False Positive rate.

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