PCDOE Implementing service monitoring strategies Practice Question
Exhibit
``` NAME: cpu-high CONDITION: cpu_utilization > 0.8 DURATION: 0s NOTIFICATION_CHANNELS: email NAME: disk-full CONDITION: disk_utilization > 0.95 DURATION: 300s NOTIFICATION_CHANNELS: none ```
A team notices that the 'cpu-high' alert fires frequently even for short bursts. The 'disk-full' alert never sends notifications. Based on the exhibit, what is the issue with each?
⚠ Common exam trap
Google Cloud often tests the distinction between alert condition configuration (threshold/duration) and notification delivery, leading candidates to confuse a missing notification channel with a threshold or duration misconfiguration.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The cpu-high alert duration is too short; the disk-full alert has no notification channel.
The 'cpu-high' alert fires frequently for short bursts due to its duration being set too short, causing it to trigger on transient spikes. The 'disk-full' alert never sends notifications because it lacks a configured notification channel, so even when the condition is met, no alert is dispatched.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The cpu-high uses email which is unreliable; the disk-full condition is too low.
Why it's wrong here
Email is a valid channel; the disk-full condition is appropriate for nearly full disk.
- ✗
Both alerts have misconfigured durations.
Why it's wrong here
Only cpu-high has a problematic duration; disk-full's issue is notification channel.
- ✓
The cpu-high alert duration is too short; the disk-full alert has no notification channel.
Why this is correct
Duration of 0s causes firing on any transient spike; missing notification channel means no alerts are delivered.
- ✗
The cpu-high threshold is too high; the disk-full duration is too long.
Why it's wrong here
Thresholds are not necessarily problematic; the duration is the issue for cpu-high, and notification missing for disk-full.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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