AWS - Auto Scaling
If you configure a scheduled scaling action with a recurrence of "cron(0 18 ? * MON-FRI *)", when will the scaling occur?
If you configure a scheduled scaling action with a recurrence of "cron(0 18 ? * MON-FRI *)", when will the scaling occur?
medium📝 Predict Output Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Decode the cron expression
"0 18 ? * MON-FRI *" means minute 0, hour 18 (6 PM UTC), any day of month, months any, days Monday to Friday.Step 2: Match options to cron meaning
Only At 6 PM UTC every Monday through Friday matches 6 PM UTC Monday to Friday.Final Answer:
At 6 PM UTC every Monday through Friday -> Option BQuick Check:
Cron MON-FRI 18:00 UTC = Weekday 6 PM [OK]
Quick Trick: Cron MON-FRI 18 means 6 PM weekdays UTC [OK]
Common Mistakes:
- Misreading AM/PM
- Confusing weekdays with weekends
- Ignoring time zone (UTC)
- Misinterpreting '?' in day-of-month field
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