Managing Implementation and Ensuring Solution and Operations Reliability →mediumMultiple SelectObjective-mapped
Google PCA Practice Question: Managing Implementation and Ensuring Solution and Operations Reliability
You need to set up monitoring and alerting for a critical service that must maintain an error rate below 0.1%. You want to be notified if the error rate exceeds this threshold over a 5-minute window. Which THREE components should you configure?
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
✓
Service Level Indicator (SLI) based on error rate
A service-level objective (SLO) defines the target (99.9% error-free). A service-level indicator (SLI) measures the actual error rate. An alerting policy triggers when the SLO is breached. Notification channels send alerts. Log-based alerts are for log content, not metrics. The correct combination: SLO, SLI, alerting policy with notification channels.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Service Level Indicator (SLI) based on error rate
Why this is correct
SLI measures the actual performance against the SLO.
- ✗
Log-based alert with filter for all errors
Why it's wrong here
Log-based alerts are for logs, not for SLO-based metrics.
- ✓
Service Level Objective (SLO) with a target of 99.9%
Why this is correct
SLO defines the reliability target.
- ✗
Cloud Audit Logs sink to BigQuery
Why it's wrong here
Audit logs are for compliance, not for near real-time alerting on error rates.
- ✓
Alerting policy with a notification channel (e.g., email, PagerDuty)
Why this is correct
Alerting policy triggers when SLO is at risk or breached.
Go deeper
Related to this question
Learn chapter
IAM Policies, Service Accounts, and Auditing
Key term
SLI
An SLI (Service Level Indicator) is a carefully chosen metric that measures one specific aspect of a service's performance, such as request latency or error rate, to help determine whether the service is meeting its reliability goals.
Key term
Service
A service is a software component or system that performs a specific function and is available to be used by other programs or users over a network.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PCA practice question is part of Courseiva's free Google Cloud certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PCA exam.