300-445 Question 27
Select 3Your organization has deployed a new enterprise network assurance solution. The network team wants to monitor end-to-end application performance and detect potential issues such as high latency or packet drops. They are debating whether to use active or passive monitoring. Which of the following statements correctly describe the differences between active and passive monitoring as defined in RFC 7276 and RFC 7799?
- A
Active monitoring involves injecting synthetic traffic into the network to measure performance metrics.
- B
Passive monitoring requires additional load on the network as it generates artificial traffic for analysis.
- C
Passive monitoring uses real user traffic to measure performance without introducing synthetic data.
- D
Active monitoring provides real-time visibility into the actual user experience by analyzing live traffic.
- E
Passive monitoring can only detect issues after they have already impacted the end user.
Show answer and explanation
Correct answers: A, C, E
Explanation
Active and passive monitoring serve different purposes in network assurance. Active monitoring, as defined in RFC 7799, uses synthetic traffic to proactively measure network performance metrics, providing insights into potential issues. Passive monitoring, on the other hand, analyzes existing user traffic, as per RFC 7276, to provide a retrospective view of performance. Understanding these differences allows network teams to choose the appropriate monitoring strategy for their use case.
- A. Correct.
Correct. Active monitoring involves sending synthetic traffic through the network to measure metrics like latency, jitter, or packet loss.
- B. Incorrect.
Incorrect. Passive monitoring does not generate artificial traffic; it relies on analyzing existing user traffic.
- C. Correct.
Correct. Passive monitoring observes and analyzes real user traffic, making it non-intrusive and suitable for measuring performance without additional load.
- D. Incorrect.
Incorrect. Active monitoring does not analyze live traffic; it uses synthetic traffic and is not representative of the actual user experience.
- E. Correct.
Correct. Passive monitoring analyzes historical or live traffic but cannot predict issues before they occur, as it is retrospective in nature.