300-445 Question 28
Single answerAn enterprise network team is deploying a network assurance solution to monitor the performance of their applications and underlying infrastructure. They are considering both active and passive monitoring techniques. Which of the following statements about active and passive monitoring is correct based on RFC 7276 and RFC 7799?
- A
Active monitoring introduces synthetic traffic into the network to measure performance metrics such as latency and packet loss.
- B
Passive monitoring involves injecting test packets into the network to evaluate application performance.
- C
Active monitoring is less resource-intensive than passive monitoring because it does not rely on analyzing existing traffic flows.
- D
Passive monitoring is ideal for measuring metrics like jitter and latency in real time by introducing controlled test traffic.
Show answer and explanation
Correct answer: A
Explanation
Active monitoring, as defined by RFC 7799, relies on generating synthetic traffic to evaluate network performance metrics such as latency, jitter, and packet loss. This method allows for controlled testing of specific scenarios but can introduce additional network overhead. On the other hand, passive monitoring, as described in RFC 7276, involves analyzing existing traffic flows without introducing new traffic, making it suitable for understanding real-world network behavior without adding extra load.
- A. Correct.
Correct: Active monitoring involves generating synthetic traffic to measure metrics such as latency, packet loss, and jitter.
- B. Incorrect.
Incorrect: Passive monitoring does not involve injecting any traffic. Instead, it analyzes existing traffic flows to gather data.
- C. Incorrect.
Incorrect: Active monitoring is typically more resource-intensive as it generates additional synthetic traffic, whereas passive monitoring analyzes existing traffic.
- D. Incorrect.
Incorrect: Passive monitoring does not introduce test traffic; it relies on analyzing the naturally occurring network traffic.