This CKA practice question tests your understanding of workloads and scheduling. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. 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.
Which kubectl command lists all events in the cluster, sorted by timestamp (newest first)?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "first"
Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
kubectl get events --all-namespaces --sort-by='.lastTimestamp'
Option C is correct because `kubectl get events --all-namespaces --sort-by='.lastTimestamp'` retrieves events from all namespaces and sorts them by the `lastTimestamp` field in ascending order, which effectively displays the newest events last. To show newest first, you would typically add `--sort-by='.lastTimestamp'` and reverse the output, but among the given options, this is the only one that uses the correct field for sorting by time and includes all namespaces, which is necessary for cluster-wide events.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
kubectl get events --sort-by='.metadata.creationTimestamp'
Why it's wrong here
creationTimestamp is similar but events use lastTimestamp for updates.
✗
kubectl get events --watch
Why it's wrong here
--watch streams events, does not sort.
✓
kubectl get events --all-namespaces --sort-by='.lastTimestamp'
Why this is correct
Correct. This shows all events sorted by lastTimestamp in ascending order; reverse for newest first.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
kubectl get events --all-namespaces --sort-by='.firstTimestamp'
Why it's wrong here
Sorts by first timestamp, not last.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse `firstTimestamp` with `lastTimestamp`, or forget that `--all-namespaces` is required to see cluster-wide events, leading them to pick Option A or D without considering the correct field for newest-first ordering.
Trap categories for this question
Similar concept trap
creationTimestamp is similar but events use lastTimestamp for updates.
Detailed technical explanation
How to think about this question
In Kubernetes, events are stored in etcd and have both `firstTimestamp` and `lastTimestamp` fields; `lastTimestamp` is updated each time a similar event is recorded, making it the accurate field for sorting by recency. The `--sort-by` flag uses JSONPath expressions to sort client-side, so for large clusters, sorting can be resource-intensive; using `--field-selector` or `--since` can reduce the dataset. In real-world troubleshooting, sorting by `lastTimestamp` helps identify the most recent issues, such as a pod crash loop or scheduler failures, without manual parsing.
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.
TExam Day Tips
→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.
Real-world example
How this comes up in practice
A practitioner preparing for the CKA exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this CKA question in full detail.
Workloads and Scheduling — This question tests Workloads and Scheduling — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: kubectl get events --all-namespaces --sort-by='.lastTimestamp' — Option C is correct because `kubectl get events --all-namespaces --sort-by='.lastTimestamp'` retrieves events from all namespaces and sorts them by the `lastTimestamp` field in ascending order, which effectively displays the newest events last. To show newest first, you would typically add `--sort-by='.lastTimestamp'` and reverse the output, but among the given options, this is the only one that uses the correct field for sorting by time and includes all namespaces, which is necessary for cluster-wide events.
What should I do if I get this CKA question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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