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Cisco 642-821 Cert Exam, Real Cisco 642-821 Vce & PDF 100% Pass With A High Score

Cisco 642-821 Cert Exam, Real Cisco 642-821 Vce & PDF 100% Pass With A High Score

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QUESTION 75
ADSL broadband connections using the PPPoE access method typically use which type of user authentication method?
A. AAA authentication
B. DNIS authentication
C. Caller-ID authentication
D. PPP CHAP authentication
E. IPSec authentication
F. L2TP authentication

Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 76
Which three statements are true about the Point-to-Point Protocol (PPP) frame format? (Choose three.)
A. Link Control Protocol (LCP) is a PPP component for establishing, configuring, and testing the data-link connection.

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