Quick Answer
The answer is NTP, the Network Time Protocol, because it is the standard protocol designed specifically for clock synchronization across network devices. By configuring all switches, routers, and firewalls to point to a common NTP server, each device adjusts its internal clock to match the authoritative time source, ensuring that log timestamps are consistent and events can be accurately correlated. On the CompTIA Network+ N10-009 exam, this question tests your understanding of network services and troubleshooting—a common trap is confusing NTP with SNMP (which monitors device health) or DNS (which resolves names). Remember that inconsistent timestamps are a classic symptom of missing or misconfigured NTP, and the exam often pairs this with scenarios involving security logs or incident response. A helpful memory tip: think of NTP as the “timekeeper” for your network—without it, your logs are just a jumble of mismatched clocks.
This N10-009 practice question tests your understanding of network operations. 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 network administrator notices that log timestamps from different switches are inconsistent, making correlation of events difficult. Which protocol should be implemented to ensure all devices have the same time?
SNMP
Why wrong: SNMP is used for managing and monitoring network devices, not for time synchronization.
NTP
NTP synchronizes clocks across network devices, ensuring log timestamps are consistent.
SMTP
Why wrong: SMTP is a protocol for sending email, not for time synchronization.
RIP
Why wrong: RIP is a routing protocol used to exchange routing information, not for time synchronization.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
NTP
NTP (Network Time Protocol) is the standard protocol used to synchronize clocks across network devices. By configuring all switches to use the same NTP server, timestamps in logs become consistent, enabling accurate correlation of events across the network.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
SNMP
Why it's wrong here
SNMP is used for managing and monitoring network devices, not for time synchronization.
NTP
Why this is correct
NTP synchronizes clocks across network devices, ensuring log timestamps are consistent.
Related concept
Read the scenario before looking for a memorised answer.
SMTP
Why it's wrong here
SMTP is a protocol for sending email, not for time synchronization.
RIP
Why it's wrong here
RIP is a routing protocol used to exchange routing information, not for time synchronization.
Common exam traps
Cisco often tests NTP as the solution for time synchronization, but the trap here is that candidates may confuse SNMP (which can retrieve system uptime or timeticks) as a method to synchronize clocks, whereas SNMP only reads or writes management information, not the system clock itself.
Detailed technical explanation
NTP operates over UDP port 123 and uses a hierarchical system of stratum levels to define time source accuracy. Devices can be configured as NTP clients, servers, or peers, and NTP can achieve millisecond accuracy over the internet by compensating for network delays using timestamps in its packet exchange. In a production network, using a local NTP server that syncs to a public stratum-1 or stratum-2 source ensures all switches maintain consistent time even if external connectivity is lost.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the N10-009 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.
What to study next
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FAQ
Network Operations — This question tests Network Operations — Read the scenario before looking for a memorised answer..
The correct answer is: NTP — NTP (Network Time Protocol) is the standard protocol used to synchronize clocks across network devices. By configuring all switches to use the same NTP server, timestamps in logs become consistent, enabling accurate correlation of events across the network.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
This N10-009 practice question is part of Courseiva's free CompTIA 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 N10-009 exam.
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