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You have set an alert policy for the disk usage of an ECS instance by using Alibaba Cloud CloudMonitor. Each measurement cycle lasts for 5 minutes, during which the average disk usage is measured. If the average disk usage exceeds 80% for five consecutive measurement cycles, an alert will be reported. After your average disk usage exceeds 80%, how long will it take to receive an alert?
Suggested Answer: B
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With a measurement cycle of 5 minutes and a requirement for five consecutive cycles where disk usage exceeds 80%, it would take 55=255 times 5 = 2555=25 minutes for CloudMonitor to confirm the condition. After confirmation, CloudMonitor typically processes and sends the alert, which may take an additional 5 minutes, totaling approximately 30 minutes before you receive the alert.
28 comments · newest first
JE
Jenelle
8 months ago
No way, it’s 20 minutes. You get the alert right after the last cycle.
AN
Annice
8 months ago
But isn’t it 40 minutes? You need time for the alert to trigger.
WI
Winfred
8 months ago
Yeah, I agree. 5 cycles means 25 minutes, plus the alert time.
BE
Bette
9 months ago
I think it’s 30 minutes. Five cycles of 5 minutes each.
GE
Gennie
9 months ago
Nope, it's 30 minutes for sure.
AR
Ardella
9 months ago
I thought it was 20 minutes max.
ON
Onita
9 months ago
Wait, is it really that long?
CH
Chaya
9 months ago
Agree, it's definitely 25 minutes!
VI
Virgie
9 months ago
I bet the developers who wrote this question were disk-ussing it over a cup of coffee. (Pun intended)
LO
Lorean
10 months ago
D) 20 minutes seems like the right answer. Why would it take 40 minutes? That's way too long.
RU
Ruthann
10 months ago
I think the answer is B) 30 minutes. It's 5 cycles of 5 minutes, so that's 25 minutes, and then the alert is reported.
BR
Brock
10 months ago
The correct answer is C) 40 minutes. It takes 5 consecutive measurement cycles of 5 minutes each, so that's 25 minutes.
YO
Yolando
10 months ago
I practiced a similar question, and I think the alert would come after 40 minutes since we need to account for the initial exceedance too.
MA
Marvel
10 months ago
I'm not entirely sure, but I remember something about needing to wait for the cycles to complete before the alert goes off.
JO
Joseph
11 months ago
It takes 25 minutes to get an alert.
RE
Reta
11 months ago
If each cycle is 5 minutes and we need five consecutive cycles, that sounds like 25 minutes to me, but I could be wrong.
NO
Nohemi
11 months ago
Hmm, I'm going with C) 40 minutes. It makes sense that it would take 5 cycles of 5 minutes each to trigger the alert.
GE
Georgiana
11 months ago
I think the alert triggers after five cycles, so that would be 25 minutes total, right?
JA
Jacquline
12 months ago
Ah, I see now. The question is asking how long it takes to receive the alert, not how long the average disk usage has to exceed 80%. The answer is definitely B) 30 minutes.
MI
Miesha
12 months ago
I've got it! The alert is triggered after the average disk usage exceeds 80% for 5 consecutive 5-minute cycles. That means the total time is 25 minutes. The answer must be B) 30 minutes.
MO
Moon
1 year ago
I'm a bit confused. Does the question mean the average disk usage has to exceed 80% for the entire 25 minutes, or just for the last 5 minutes of that period?
KA
Katie
1 year ago
Okay, let me think this through. Each cycle is 5 minutes, and the alert is triggered after 5 consecutive cycles. So the total time must be 25 minutes, right?
CI
Ciara
1 year ago
Hmm, this seems straightforward. I just need to calculate the time it takes for the average disk usage to exceed 80% for five consecutive cycles.
AI
Aileen
7 months ago
Agreed, 30 minutes seems correct!
TA
Tabetha
7 months ago
I think it’s 30 minutes total.
LE
Leatha
7 months ago
So, 5 times 5 equals 25 minutes, plus the time to exceed?
CH
Chery
10 months ago
Yeah, that makes sense. Five cycles of 5 minutes each.
BE
Bettina
11 months ago
It’s 30 minutes, right?