300-445 Question 26
Select 3An enterprise network team needs to monitor the performance of their network to ensure optimal application delivery. They are considering active and passive monitoring techniques as defined in RFC 7276 and RFC 7799. Which of the following statements correctly describe these monitoring methods?
- A
Active monitoring involves injecting synthetic traffic into the network to measure performance metrics such as latency and packet loss.
- B
Passive monitoring uses existing network traffic to analyze performance without generating additional traffic.
- C
Active monitoring is less resource-intensive than passive monitoring because it only injects small amounts of synthetic traffic.
- D
Passive monitoring is ideal for real-time performance monitoring and troubleshooting because it analyzes live traffic flows.
- E
Active monitoring can simulate specific application traffic patterns to test network behavior under controlled conditions.
Show answer and explanation
Correct answers: A, B, E
Explanation
Active and passive monitoring are complementary techniques used for network performance analysis. Active monitoring generates synthetic traffic to measure specific metrics, while passive monitoring uses existing traffic for analysis without additional overhead. Understanding their differences and use cases, as outlined in RFC 7276 and RFC 7799, is crucial for designing effective network assurance strategies.
- A. Correct.
Correct: Active monitoring involves creating synthetic traffic to gather performance metrics, as described in RFC 7276 and RFC 7799.
- B. Correct.
Correct: Passive monitoring observes and analyzes existing traffic without introducing additional traffic, making it a non-intrusive method.
- C. Incorrect.
Incorrect: Active monitoring can be more resource-intensive than passive monitoring because it generates additional traffic, even if it is small.
- D. Incorrect.
Incorrect: While passive monitoring is effective for analyzing live traffic, it is not always ideal for real-time troubleshooting due to the potential delay in processing large volumes of data.
- E. Correct.
Correct: Active monitoring allows simulation of specific application traffic patterns, which can be useful for controlled network testing.