Which of these is one of LCP’s PPP-encapsulation options for authentication?a.)PBXb.)PAPc.)Magic numberd.)DMVPN

To answer the question, we need to identify which option among the choices given is relevant to LCP's (Link Control Protocol) PPP (Point-to-Point Protocol) encapsulation options for authentication.

Analyzing the Options

1. PBX: This stands for Private Branch Exchange, which is a telephone switching system. It is not related to PPP authentication.

2. PAP: This stands for Password Authentication Protocol and is indeed one of the authentication methods used in PPP.

3. Magic number: This is a term often associated with a unique value used for identification or verification but is not directly related to PPP authentication.

4. DMVPN: This stands for Dynamic Multipoint Virtual Private Network. It is a solution for building dynamic and scalable VPNs, and is not directly related to LCP’s PPP authentication.

Conclusion

The correct choice that pertains to LCP’s PPP-encapsulation options for authentication is:

Final Answer

b.) PAP