Huawei Certified Network Associate – Routing and Switching (HCNA-RS, legacy) — Question 96

Which of the following mechanisms are used for flow control? (Choose three)

Answer options

• A. Acknowledgement
• B. Buffering
• C. Source quench messages
• D. Windowing

Correct answer: B, C, D

Explanation

Buffering, Source quench messages, and Windowing are all effective methods for flow control in data transmission. Acknowledgement does not directly regulate flow; instead, it confirms receipt of data, which is not the primary function of flow control mechanisms.