Which Monitoring Method Inspects Data Contents Between Secure and Company Networks?
Short answer
A Port mirroring
Question
Key Takeaways
The question tests knowledge of network traffic monitoring techniques and specifically requires content-level inspection, which only port mirroring can provide; flow data, syslog, and SNMP provide metadata or device status, not payload contents.
Port mirroring is the correct method to inspect actual data content flowing between a secure network and the rest of the company. Community consensus confirms option A as the answer because it duplicates traffic to a monitoring device for deep packet inspection.
Common mistake: Choosing flow data (B) is a common mistake because administrators might think it captures traffic details, but flow data only summarizes metadata like IPs and ports, not the actual data content.
Expert Analysis
Why the Answer Is Correct
Port mirroring copies or duplicates traffic from one or more switch ports to a monitoring port where a network analyzer, IPS, or other packet capture device can inspect full packet contents. This allows the administrator to see the actual data sent between the secure network and the rest of the company, exactly as required by the question. Comments from users [1] and [2] explicitly confirm this capability.
Why the Other Options Are Wrong
Flow data (B) provides aggregated metadata about flows, such as source/destination IPs and ports, but does not capture the packet payload or data contents. Syslog entries (C) are system event logs from network devices and contain no user data payload. SNMP traps (D) are asynchronous alerts used for network management and monitoring device health, not for inspecting traffic data. None of these tools can monitor the contents of data packets.
Community Comment Notes
All comments agree on answer A, with user [1] explaining that port mirroring duplicates traffic to a monitoring device for analysis. User [2] describes it as mirroring data from all physical ports to a single port for inspecting packets coming to or from specific computers. No dissenting views or additional pitfalls were raised in the comments, reinforcing the straightforward nature of this question.
Official Reference
https://www.sciencedirect.com/topics/computer-science/port-mirroring
This link opens the official vendor documentation in a new tab.
Exam Strategy
When the question mentions 'monitor the contents of data', remember that only methods capable of deep packet inspection will work. Look for keywords like 'contents' or 'packets' and immediately favor port mirroring over flow-based or management protocols that only summarize or alert.
Community Votes
100% of anonymous learners picked answer A. Votes are pick records left by other test-takers — they are not the verified answer.
Discussion 3 contributions
Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.
From public community threads 3
-
ba10f26 👍 2 Answered AThe correct answer is: A. Port mirroring Port mirroring is a technique used on a network switch to duplicate (or "mirror") the traffic from one or more ports to another port where a monitoring device, such as a network analyzer or intrusion detection system, is connected. This allows the administrator to monitor the contents of data being sent between the secure network and the rest of the company.
-
HeatSquad77 👍 1 Answered AA. port mirroring The capability of many advanced switches to mirror data from any or all physical ports on a switch to a single physical port. Useful for any type of situation where an administrator needs to inspect packets coming to or from certain computers.
-
Hayder81 👍 2 Answered AA. Port mirroring.
Reader comments & corrections
No reader corrections yet — spotted an error or have a note? Share it below.
Related Analysis
Practice All N10-009 Questions
Access 100 questions with complete answers and detailed explanations.
View Full N10-009 Practice Test →