Huawei Certified Network Associate – Routing and Switching (HCNA-RS, legacy) — Question 5

Two routers are connected through serial interfaces and support PPP encapsulation.
Which parameters must be negotiated to establish the PPP connection? (Choose three).

Answer options

• A. MRU
• B. Authentication password
• C. Magic-Number
• D. IP address

Correct answer: A, C, D

Explanation

The correct parameters for establishing a PPP connection include MRU, Magic-Number, and IP address. The MRU (Maximum Receive Unit) defines the largest packet size that can be transmitted, the Magic-Number is used for loop detection, and the IP address is necessary for routing. The authentication password is not negotiated as part of the PPP link establishment process.