CS0-003 NTP ensures consistent time across devices. Practice Question
This CS0-003 practice question tests your understanding of security operations. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. A key principle to apply: nTP ensures consistent time across devices.. 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.
During incident reconstruction, firewall events appear five minutes earlier than endpoint events for the same connection. What should the analyst check first? In the alert triage phase, Which action gives the analyst the clearest next triage step?
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
✓
Time synchronization and timezone normalization across log sources
Time synchronization and timezone normalization across log sources is the correct first check because a consistent five-minute offset between firewall and endpoint events for the same connection strongly indicates a clock drift or timezone misconfiguration rather than a security anomaly. In incident reconstruction, analysts must ensure all timestamps are aligned to a common reference (e.g., UTC) and that NTP is properly configured on all devices; otherwise, the timeline is unreliable. This step directly addresses the root cause before any triage or prioritization can occur.
Key principle: NTP ensures consistent time across devices.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Prioritize only the source with the highest EPS
Why it's wrong here
Event volume does not determine chronological accuracy.
✓
Time synchronization and timezone normalization across log sources
Why this is correct
Clock drift and timezone parsing commonly distort event order in SIEM timelines.
Clue confirmation
The clue word "first" in the question point toward this answer.
Time-order issues are often configuration problems, not proof of tampering.
✗
Delete one source from the timeline
Why it's wrong here
Removing telemetry reduces evidence quality.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that a timestamp discrepancy automatically indicates log tampering or that high EPS should drive triage priority, when in fact the immediate technical root cause is almost always a time synchronization issue.
Detailed technical explanation
How to think about this question
Under the hood, firewall and endpoint devices often use different NTP servers or may have NTP disabled, leading to clock drift that can accumulate to minutes over time. In a real-world scenario, a five-minute offset could cause an analyst to incorrectly conclude that an attack originated before a defense mechanism was triggered, potentially missing a true positive or creating a false narrative. The standard remediation is to configure all security devices to use the same authoritative NTP source and enforce UTC timezone normalization in the SIEM parsing rules.
KKey Concepts to Remember
NTP ensures consistent time across devices.
Timezone normalization converts all timestamps to a common zone (e.g., UTC).
Clock drift is the gradual deviation of a system's clock.
Accurate event ordering is crucial for incident correlation.
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
NTP ensures consistent time across devices.
Real-world example
How this comes up in practice
A SOC analyst notices unusual lateral movement in the network at 2 AM. The IR playbook dictates: identify and contain (isolate the affected machine), then eradicate (remove the malware), then recover (restore from backup), then document. Skipping containment before eradication risks the attacker regaining access. Questions like this test the sequence and rationale of incident response phases.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this CS0-003 question in full detail.
Security Operations — This question tests Security Operations — NTP ensures consistent time across devices..
What is the correct answer to this question?
The correct answer is: Time synchronization and timezone normalization across log sources — Time synchronization and timezone normalization across log sources is the correct first check because a consistent five-minute offset between firewall and endpoint events for the same connection strongly indicates a clock drift or timezone misconfiguration rather than a security anomaly. In incident reconstruction, analysts must ensure all timestamps are aligned to a common reference (e.g., UTC) and that NTP is properly configured on all devices; otherwise, the timeline is unreliable. This step directly addresses the root cause before any triage or prioritization can occur.
What should I do if I get this CS0-003 question wrong?
Review nTP ensures consistent time across devices., then practise related CS0-003 questions on the same topic to reinforce the concept.
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?
NTP ensures consistent time across devices.
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Question Discussion
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