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ACE Practice Question: A team runs a Kubernetes CronJob that performs…

This ACE practice question tests your understanding of a team runs a kubernetes cronjob that performs…. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.

A team runs a Kubernetes CronJob that performs nightly database cleanup. The job runs at 2 AM UTC. This morning, the team notices the job failed at 2 AM but no one was alerted. How should the team configure alerting for CronJob failures?

Question 1mediummultiple choice
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A team runs a Kubernetes CronJob that performs nightly database cleanup. The job runs at 2 AM UTC. This morning, the team notices the job failed at 2 AM but no one was alerted. How should the team configure alerting for CronJob failures?

Answer choices

Why each option matters

Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.

A

Distractor review

Set `successfulJobsHistoryLimit: 0` — GKE sends an alert when the history is empty

`successfulJobsHistoryLimit` controls how many completed Job records are retained — it has no alerting functionality.

B

Best answer

Create a log-based metric on CronJob failure events in Cloud Logging and an alerting policy on that metric

Kubernetes CronJob failures are logged as events in Cloud Logging. A log-based metric counting failure events, combined with a Cloud Monitoring alerting policy, sends notifications when failures occur.

C

Distractor review

Set `restartPolicy: Always` on the CronJob's Pod template — it will retry until success

CronJob Pod templates must use `restartPolicy: OnFailure` or `Never` — `Always` is invalid for Jobs and doesn't provide alerting.

D

Distractor review

Enable GKE's built-in CronJob alerting feature in the cluster's Notifications settings

GKE Notifications can alert on specific cluster events (node upgrades, security issues) — CronJob-level failure alerting requires log-based metrics or custom monitoring.

Common exam trap

Common exam trap: answer the scenario, not the keyword

Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.

Technical deep dive

How to think about this question

This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.

KKey Concepts to Remember

  • Read the scenario before looking for a memorised answer.
  • Find the constraint that changes the correct option.
  • Eliminate answers that are true in general but not in this case.
  • Use explanations to understand the rule behind the answer.

TExam Day Tips

  • Underline the problem statement mentally.
  • Watch for words such as best, first, most likely and least administrative effort.
  • Review why wrong options are wrong, not only why the correct option is correct.

Key takeaway

Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

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FAQ

Questions learners often ask

What does this ACE question test?

Read the scenario before looking for a memorised answer.

What is the correct answer to this question?

The correct answer is: Create a log-based metric on CronJob failure events in Cloud Logging and an alerting policy on that metric — Kubernetes CronJob failures create Job objects with a `Failed` status. Cloud Logging captures these events. A log-based alert in Cloud Monitoring (filtering for Job failures in Cloud Logging) or a Kubernetes Event alert can notify the team when CronJob executions fail.

What should I do if I get this ACE question wrong?

Identify which ACE exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.

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