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Splunk SPLK-4001 Exam - Topic 8 Question 52 Discussion

Which of the following are ways to reduce flapping of a detector? (Select all that apply)
D) Apply a smoothing transformation (like a rolling mean) to the input data for the detector. and A) Configure a duration or percent of duration for the alert.
C) Enable the anti-flap setting in the detector options menu.
B) Establish a reset threshold for the detector.

Splunk SPLK-4001 Exam - Topic 8 Question 52 Discussion

Actual exam question for Splunk's SPLK-4001 exam
Question #: 52
Topic #: 8
[All SPLK-4001 Questions]

Which of the following are ways to reduce flapping of a detector? (Select all that apply)

Show Suggested Answer Hide Answer
Suggested Answer: D, A

According to the Splunk Lantern articleResolving flapping detectors in Splunk Infrastructure Monitoring, flapping is a phenomenon where alerts fire and clear repeatedly in a short period of time, due to the signal fluctuating around the threshold value. To reduce flapping, the article suggests the following ways:

Configure a duration or percent of duration for the alert: This means that you require the signal to stay above or below the threshold for a certain amount of time or percentage of time before triggering an alert. This can help filter out noise and focus on more persistent issues.

Apply a smoothing transformation (like a rolling mean) to the input data for the detector: This means that you replace the original signal with the average of its last several values, where you can specify the window length. This can reduce the impact of a single extreme observation and make the signal less fluctuating.


Contribute your Thoughts:

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Daryl
15 hours ago
What about increasing the sample rate? That might work too.
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Barabara
6 days ago
Yeah, and adjusting the gain can stabilize readings.
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Broderick
11 days ago
I think using a low-pass filter helps a lot.
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Blossom
16 days ago
I've heard that increasing the sample rate can help as well.
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Lashonda
2 months ago
Adjusting the gain helps too!
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Lauran
2 months ago
Really? I thought that just made it worse.
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Valentin
2 months ago
Totally agree with that!
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Quentin
3 months ago
Use a low-pass filter.
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Arminda
3 months ago
Hysteresis, filtering, and dampening. Anything to avoid that disco ball effect on my detectors.
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Renay
3 months ago
Hysteresis, filtering, and dampening. Gotta love a good detector that doesn't have a mind of its own.
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Lina
3 months ago
Hysteresis, filtering, and dampening. Flapping detectors are the worst, amirite?
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Olen
3 months ago
Hysteresis, filtering, and dampening. Gotta keep those detectors rock solid.
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Gene
3 months ago
Hysteresis and filtering are the way to go. Anything to avoid that annoying flapping!
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Myong
4 months ago
The answer is definitely using hysteresis and dampening. Gotta love those stable detectors!
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Franchesca
4 months ago
I think using averaging techniques could help, but I’m not confident if that directly applies to flapping reduction.
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Gerry
4 months ago
I feel like there was something about damping techniques in our study materials, but I can't recall the specifics right now.
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Willie
5 months ago
I remember practicing a question like this where we discussed using filters to stabilize readings. That might be relevant here too.
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Walker
5 months ago
I think one way to reduce flapping is by adjusting the threshold levels, but I'm not entirely sure if that's the only method.
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Noemi
5 months ago
Ah yes, I remember now! Adjusting the detector's threshold, incorporating positive feedback, and using a Schmitt trigger - those are all effective ways to minimize flapping. I feel good about this question.
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Wilda
5 months ago
Ugh, I'm drawing a blank on this one. Reducing flapping is an important concept, but I can't recall the specific techniques off the top of my head. Guess I need to review that material again.
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Cyril
5 months ago
Okay, let's see. Reducing noise, adding hysteresis, and using a low-pass filter - those all seem like good strategies to try. I feel pretty confident about those.
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Jacklyn
6 months ago
Hmm, I remember something about using a damping mechanism or filtering the input signal. I'll have to think that through more carefully.
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Yuki
6 months ago
I think reducing the detector's sensitivity could help reduce flapping. But I'm not totally sure about the other options.
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