- A
SNMP
Why wrong: Incorrect. SNMP provides aggregate interface statistics but does not identify individual flows or traffic types.
- B
NetFlow
Correct. NetFlow collects detailed flow data, allowing identification of top talkers, applications, and traffic patterns.
- C
Syslog
Why wrong: Incorrect. Syslog is used for logging system events and errors, not for traffic analysis.
- D
ICMP
Why wrong: Incorrect. ICMP is used for network diagnostics like ping and traceroute, not for monitoring traffic flows.
Question 261 of 520
N10-009 Network Operations Practice Question
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 needs to identify which hosts are generating the most traffic on the network and what types of traffic (e.g., HTTP, FTP). Which monitoring technology should be deployed?
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
✓
NetFlow
NetFlow is the correct choice because it provides detailed visibility into network traffic flows, including source/destination IPs, ports, protocols, and application-level information (e.g., HTTP, FTP). Unlike SNMP, which only gives aggregate interface statistics, or Syslog, which logs device events, NetFlow captures per-flow metadata that directly answers the question of which hosts are generating the most traffic and what types of traffic they are using.
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.
- ✗
SNMP
Why it's wrong here
Incorrect. SNMP provides aggregate interface statistics but does not identify individual flows or traffic types.
When this WOULD be correct
SNMP would be correct if the question asked: 'Which technology should be used to monitor the CPU utilization and interface errors on network devices?' or 'Which protocol is commonly used to collect performance metrics from routers and switches?'
- ✓
NetFlow
Why this is correct
Correct. NetFlow collects detailed flow data, allowing identification of top talkers, applications, and traffic patterns.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Syslog
Why it's wrong here
Incorrect. Syslog is used for logging system events and errors, not for traffic analysis.
When this WOULD be correct
A network administrator needs to centralize and analyze system logs from routers, switches, and servers for security auditing or troubleshooting. Syslog would be the correct choice for collecting and forwarding log messages.
- ✗
ICMP
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The N10-009 exam frequently reuses these exact scenarios with slightly different constraints.
✓NetFlowCorrect answer▾
Why this is correct
Correct. NetFlow collects detailed flow data, allowing identification of top talkers, applications, and traffic patterns.
✗SNMPWrong answer — click to see why▾
Why this is wrong here
SNMP is used for monitoring device health and status (e.g., CPU, memory, interface errors), not for identifying which hosts generate the most traffic or the types of traffic (e.g., HTTP, FTP). It lacks the flow-level detail required for traffic analysis.
★ When this WOULD be the correct answer
SNMP would be correct if the question asked: 'Which technology should be used to monitor the CPU utilization and interface errors on network devices?' or 'Which protocol is commonly used to collect performance metrics from routers and switches?'
Why candidates choose this
Candidates often associate SNMP with network monitoring in general, not realizing it provides aggregate statistics rather than per-flow traffic details needed to identify top talkers and application types.
✗SyslogWrong answer — click to see why▾
Why this is wrong here
Syslog is used for logging system events and messages, not for analyzing traffic volume or types like HTTP/FTP. It does not provide per-flow traffic statistics.
★ When this WOULD be the correct answer
A network administrator needs to centralize and analyze system logs from routers, switches, and servers for security auditing or troubleshooting. Syslog would be the correct choice for collecting and forwarding log messages.
Why candidates choose this
Candidates may confuse Syslog with monitoring tools because it is commonly used for network device monitoring, but it lacks traffic flow analysis capabilities.
✗ICMPWrong answer — click to see why▾
Why this is wrong here
ICMP is used for network diagnostics (e.g., ping, traceroute) and cannot identify traffic volume or application types like HTTP or FTP.
★ When this WOULD be the correct answer
When the question asks for a tool to test basic connectivity or measure round-trip time between hosts, ICMP (e.g., ping) would be correct.
Why candidates choose this
Candidates may confuse ICMP with a monitoring tool because it is commonly used to check if hosts are reachable, but it lacks traffic analysis capabilities.
Analysis generated from the official N10-009blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse SNMP's ability to show interface utilization with the need to identify specific hosts and application types, leading them to pick SNMP when NetFlow is required for per-flow granularity.
Detailed technical explanation
How to think about this question
NetFlow (originally Cisco's proprietary protocol, now standardized as IPFIX per RFC 7011) exports flow records that include a 7-tuple key: source/destination IP, source/destination port, protocol, ToS, and input interface. Each flow is unidirectional and aggregated based on idle timeouts (default 15 seconds) or active timeouts (default 30 minutes), allowing precise per-host traffic analysis. In real-world deployments, NetFlow data is collected by a flow collector (e.g., SolarWinds, PRTG) and can be used to identify top talkers, application breakdowns, and even detect DDoS attacks by spotting unusual flow patterns.
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 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
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Questions learners often ask
What does this N10-009 question test?
Network Operations — This question tests Network Operations — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: NetFlow — NetFlow is the correct choice because it provides detailed visibility into network traffic flows, including source/destination IPs, ports, protocols, and application-level information (e.g., HTTP, FTP). Unlike SNMP, which only gives aggregate interface statistics, or Syslog, which logs device events, NetFlow captures per-flow metadata that directly answers the question of which hosts are generating the most traffic and what types of traffic they are using.
What should I do if I get this N10-009 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
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