Designing for Cisco Internetwork Solutions (DESGN, legacy) — Question 39

Which of the following is used by both NetFlow and NBAR to identify a traffic flow?

Answer options

• A. Network layer information
• B. Transport layer information
• C. Session layer information
• D. Application layer information

Correct answer: C

Explanation

The correct answer is C, as both NetFlow and NBAR utilize session layer information to track and manage traffic flows. Options A and B refer to lower layers that do not provide the necessary context for flow identification, while option D pertains to the application layer, which is not primarily used for flow identification in this context.