CompTIA Network+ (N10-008) — Question 877

The cybersecurity department needs to monitor historical IP network traffic on the WAN interface of the outside router without installing network sensors. Which of the following would be best to allow the department to complete this task?

Answer options

• A. Enabling NetFlow on the interface
• B. Enabling SSH on the interface
• C. Enabling SNMP on the interface
• D. Enabling 802.1Q on the interface

Correct answer: A

Explanation

Enabling NetFlow on the interface is the best option as it allows for the collection of traffic statistics, enabling historical monitoring without additional hardware. SSH and SNMP are primarily for device management and monitoring, but they do not provide detailed traffic analysis like NetFlow. 802.1Q is related to VLAN tagging and does not facilitate traffic monitoring.